spi lasers uk limited pt-e01739 kw oem fibre laser ...laser by three cables, is indicated by the...

Title: KW Integrator Development Board (IDB) – User Manual

Number: SM-S00425 Issue: B

Date: 15 May 2014 of 28

SPI Lasers UK Limited 2014

Proprietary Information. All rights reserved.

SPI Lasers UK Limited

PT-E01739

kW OEM Fibre Laser

Integrator Development Board

(IDB)

Manual for use with K1.1 OEM Fibre Lasers



Date: 15 May 2014 of 28



Change History

Revision Date Originator Description of Change Section

A 03 April 2014 A Harker First issue based on

SM-S00357 -

B 15 May 2014 A Harker Product release

Figure 5 corrected

1

3.2.1

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- - - - -

- - - - -

- - - - -

- - - - -

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- - - - -

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Date: 15 May 2014 of 28



Definition of Symbols and Terms

This general warning symbol emphasizes important information

needed during installation and operation

CAUTION: Describes hazards that could lead to personal injury or product

damage.

PRODUCT: The definition of “Product” as used herein means the item that was

supplied by SPI Lasers UK Limited (hereinafter referred to as SPI).

LASER

INTEGRATOR:

Any person that integrates the OEM Fibre Laser into their

equipment, or any person who uses the OEM Fibre Laser in the

form as supplied by SPI.

Warnings

CAUTION: Modifications to the Product or the use of controls or

adjustments or performance of procedures other than those specified

herein:

may be unsafe

may invalidate the warranty

Laser Integrators are not authorized to modify the specification of the Product.



Date: 15 May 2014 of 28



Table of Contents

1 Health and Safety ............................................................................................................. 5

1.1 Hazards ....................................................................................................................... 5

1.2 Regulatory Compliance ................................................................................................. 5

1.3 Product Labelling ......................................................................................................... 6

2 General Information ......................................................................................................... 6

2.1 Objective ..................................................................................................................... 6

2.2 Overview ...................................................................................................................... 7

2.3 Introduction ................................................................................................................. 8

2.4 Operating Environment .............................................................................................. 10

2.5 Non-Operating Conditions ......................................................................................... 10

3 Installation and Operation .............................................................................................. 10

3.1 Installation ................................................................................................................. 10

3.2 Required Integrator Connections ................................................................................ 11

3.3 Logic Levels ............................................................................................................... 16

3.4 Starting the OEM Fibre Laser ....................................................................................... 17

3.5 Identifying Problems .................................................................................................. 19

3.6 Connector Details ...................................................................................................... 20

3.7 Operation with Digital Interface .................................................................................. 26

4 Trade Marks .................................................................................................................. 27

5 Warranties ..................................................................................................................... 27

6 Contact Information ....................................................................................................... 28



Date: 15 May 2014 of 28



1 Health and Safety

This section gives information on the health and safety hazards which may be encountered during

installation and operation of the Integrator Development Board (IDB). Also included is information

on compliance to electrical safety regulations.

1.1 Hazards

The IDB described in this User Manual is designed for use with SPI’s K1.1series of OEM Fibre Lasers

having the order codes given in Figure 1. These are class 4 laser products which fall within the

scope of BS EN 60825: Safety of Laser Products. For health and safety information relating to laser

hazards refer to the Product Manual supplied with the OEM Fibre Laser.

SP - 1000

500 B - W -

S1

S2 -

B

F

K

N

-

03

10

20

-

FBR

LKD

LKQ

Figure 1 Order Codes

1.2 Regulatory Compliance

1.2.1 Electrical Safety and EMC

Within the EU, the IDB is CE marked and is supplied with a Declaration of Conformity listing the

standards which SPI declares that the OEM Fibre Laser is in conformity with, and the directives

which SPI declares that the OEM Fibre Laser comply with the requirements of. This Product is in

conformity with the EMC Directive 2004/108/EC when installed and used following the

instructions given in Section 2.4. The IDB and its cables have been designed as a product for

incorporation into equipments that operate in industrial environments. The product is compliant

with:

EN 61010-1 Safety requirements for electrical equipment for measurement, control and

laboratory use - Part 1: General requirements

EN 61000-6-2 Electromagnetic compatibility (EMC) - Part 6.2: Generic standards -

Immunity for industrial environments

EN 61000-6-4 Electromagnetic compatibility (EMC) - Part 6.4: Generic standards -

Emission standard for industrial environments.

In addition, the Product has been designed to meet the following standard:

FCC CFR47:Part 15, subpart B: 2002 Unintentional Radiators

It is the responsibility of the laser integrator to meet all of the regulatory requirements for the

integrated laser system.



Date: 15 May 2014 of 28



1.2.2 Safety Related Control Circuitry

SPI recognises that laser integrators may require the integrated laser system to comply with the

Machinery Directive, 2006/42/EC.

To facilitate compliance the IDB and OEM Fibre Laser have safety-related control functions which,

when used together correctly as described in this manual, are certified to fulfil the requirements of

Category 4 and PL=e of EN ISO 13849-1 with regard to safety-related control functions for up to

500,000 switching operations per year.

While application of the specifications of EN ISO 13489-1 confers a presumption of conformity

with the essential health and safety requirements of the Machinery Directive, it is the responsibility

of the laser integrator to meet all of the regulatory requirements for the integrated laser system.

No other features of the IDB or OEM Fibre Laser may be regarded as having safety-related control

functions.

1.2.3 RoHS Directive

This product has been designed to be RoHS compliant.

1.3 Product Labelling

Table 1 Labels

Product Identification Manufacturer Identification, rating plate and CE mark

2 General Information

2.1 Objective

The objective of this document is to familiarise the laser integrator with the Integrator

Development Board (IDB) for SPI’s K1.1 OEM Fibre Lasers.



Date: 15 May 2014 of 28



2.2 Overview

Figure 2 Overview of OEM Fibre Laser with IDB

The IDB makes integrating SPI’s kW class OEM Fibre Lasers easy by minimising the number of

inputs required. The IDB is connected to the OEM Fibre Laser with three cables, as shown in Figure



Date: 15 May 2014 of 28



2, which are available in a kit from SPI1. The laser integrator provides a 24V supply and a minimum

of three logic and two analogue inputs. These are all that is needed to control the OEM Fibre Laser.

If required the laser integrator has the ability to connect to the OEM Fibre Laser’s many analogue

and logic signals.

The IDB contains part of the laser safety circuit, including the board-mounted safety relay. The

laser integrator’s system safety interlocks must be connected to the IDB safety circuit to ensure

that the rating of the laser safety circuit is not compromised.

2.3 Introduction

The IDB has 4 basic functions:

to provide a safety circuit certified to be PL=e that works with the shutdown relays in the

OEM Fibre Laser and the dual redundant interlock on the laser integrator’s process cabinet.

to provide a convenient method of providing the sequence of reset pulses necessary to

reset the OEM Fibre Laser.

to provide a simple interface to the laser integrator’s controller.

to provide a convenient break-out location for the logic and analogue outputs from the

OEM Fibre Laser.

SPI’s OEM fibre laser incorporates several features which, when correctly integrated, protect the

user and the OEM Fibre Laser itself in the event of a fault. Those that principally protect the OEM

Fibre Laser are implemented within the OEM Fibre Laser. Those that principally protect the user

require additional action by the laser integrator to operate correctly.

Within the OEM Fibre Laser, shown as a red box in Figure 3, the current to the pump diodes

passes through the output contacts of two relays which provide safe, reliable disconnection of

high currents in safety critical situations. The shutdown relays must be integrated with the laser

integrator’s control and safety systems (cabinet door and E-stop). No power will be emitted from

the OEM Fibre Laser unless the shutdown relays are closed by the laser integrator’s control and

safety systems. Unless the shutdown relays are open the OEM Fibre Laser is not in a safe state and

it must be assumed that there is laser emission. The shutdown relays have forcibly guided

contacts, protective separation between the coil and control contacts and the output contacts, and

have the output contacts in one row. The main contacts of the two shutdown relays are connected

in series to give switching redundancy, and, to enable good diagnostic coverage to be achieved,

they have additional control contacts, both normally open and normally closed, to allow

monitoring of the movement of the main current-carrying contacts.

1 Part number PT-K00173



Date: 15 May 2014 of 28



Figure 3 Overview of Safety and Monitoring Functions with IDB

Figure 3 shows an example of the use of the IDB positioned between the OEM Fibre Laser and the

laser integrator’s process cabinet and safety circuit. The IDB, which is connected to the OEM Fibre



Date: 15 May 2014 of 28



Laser by three cables, is indicated by the green box. The laser integrator must provide 24V DC,

which powers the IDB and is fed through to the OEM Fibre Laser, and analogue and logic signals to

the IDB to operate the OEM Fibre Laser. In addition the laser integrator's safety circuits must be

connected to the safety relay which is incorporated into the IDB. In Figure 3 the cabinet door

interlock is shown connected directly to the IDB. If the IDB is required to respond to other safety

related control functions they first should be combined using a further safety relay, suitable for

applications up to PL=e, category 4 per ISO 13849-1 or SIL CL3 per IEC 62061, before being

connected to the IDB. In Figure 3 the E-Stop is shown connected in this manner.

It is the laser integrators responsibility to design, prove and certify the safety functionality of the

integrated laser system incorporating the IDB.

2.4 Operating Environment

Table 2 Operating Conditions

Parameter Units Value

Temperature (Operating) ℃ 5 – 40

Humidity (Operating) % RH 5 – 95 (non-condensing)

Altitude M <2000

2.5 Non-Operating Conditions

Table 3 Non-Operating Conditions

Parameter Units Value

Temperature (Storage) ℃ -10 to +70

Humidity (Storage) % RH 0 – 95 (non-condensing)

3 Installation and Operation

This section describes the integration of the OEM Fibre Laser using the IDB. Before proceeding

please refer to all sections in the OEM Fibre Laser Product Manual covering safety, environmental

and electrical specifications, component inspection and OEM Fibre Laser installation.

3.1 Installation

The installation and mounting of the IDB in the integrated laser system should

isolate the IDB from conducting surfaces using the standoffs provided.

use good quality screened cables to connect between the IDB and the OEM Fibre Laser. The

specified cables are recommended.

provide strain relief to avoid any tension on the cables leading to the IDB.

minimise the risk of mechanical damage during operation.



Date: 15 May 2014 of 28



be away from any possible water spillage. The IDB does not present an electric shock

hazard as the voltages on it are all below the SELV limit, but the presence of water will

damage the IDB and prevent it functioning correctly.

allow air to flow freely

protect it from any falling objects.

protect it from dust accumulation.

provide a fire barrier to the rest of the integrated laser system. Although the chance of the

IDB acting as a source of ignition is extremely low, this is good practice.

The IDB is provided with through holes at each corner to enable it to be mounted with M4 bolts. It

can be mounted in any orientation.

Figure 4 Mounting Hole Locations

The power dissipation of the IDB is less than 3W.

3.2 Required Integrator Connections

The locations of the connections to the IDB are shown in Figure 2.

Table 4 Electrical Interface Connections

№ Function Connector Description Reference

J1 Analogue Outputs A 14 way screw terminal See section 3.6.4

J2 Analogue and Logic

Interface

62-way D-type high density female

connector

Connect to OEM Fibre

Laser J18

J3 Analogue Outputs B 14 way screw terminal See section 3.6.5

J4 User Interface 15 way male D Type See section 3.2.4



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№ Function Connector Description Reference

J5 24V DC Auxiliary PSU 25-Way D-type male connector Connect to OEM Fibre

Laser J8

J6 24V Supply 4 way screw terminal See section 3.2.2

J7 Logic outputs 8 way screw terminal See section 3.6.2

J8 Alarm outputs 14 way screw terminal See section 3.6.3

J11 Safety Circuit 4 wire screw terminal See section 3.2.3

J12 Safety Relay Status 2 wire screw terminal See section 3.6.1

J14 Shutdown Relays 15-way D-Type male connector Connect to OEM Fibre

Laser J6

An accessory kit, part number PT-K00173, is available from SPI Lasers to facilitate connection to

the OEM Fibre Laser to the integrator’s circuits. The contents of the kit, subject to change, are

given in Table 5.

Table 5 Contents of Accessory Kit

Item Description IDB

Connection

Other Connection Qty

Back shell for 15 way male D-type connector J4 User Interface 1

15 way male D-type connector J4 User Interface 1

62-way HD Cable 5 feet long Male-Male J2 OEM Fibre Laser J18 1

15-way D-type Cable 5 feet long Male-Female J14 OEM Fibre Laser J6 1

25-way D-type Cable 5 feet long Male-Female J5 OEM Fibre Laser J8 1

Phoenix MCVW Plug 14 way J1, J3, J8 Analogue and alarm

outputs

3

Phoenix MCVW Plug 8-way J7 Logic outputs 1

Phoenix MCVW Plug 4-way J6, J11 24V Supply, Safety Circuit 2

Phoenix MCVW Plug 2-way J12 Safety Relay Status 1

Alternatively the cables and plugs can be sourced by the laser integrator. Screened cables should

be used. Recommendations are given in Table 6 below.

Table 6 Recommended Cables and Plugs

Description Manufact-

urer

Manufacturer

Part Number

Distributor Distributor

Part Number

62-way HD Cable 5 feet long

Male-Male

L-COM CHD62MM ITM Components Ltd CHD62MM-5



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Description Manufact-

urer

Manufacturer

Part Number

Distributor Distributor

Part Number

15-way D-type Cable 5 feet

long Male-Female

L-COM CSMN15MF ITM Components Ltd CSMN15MF-5

25-way D-type Cable 5 feet

long Male-Female

L-COM CSMN25MF ITM Components Ltd CSMN25MF-5

Phoenix MCVW Plug 14 way Phoenix 1862975 Digikey 1862975-ND

Phoenix MCVW Plug 8-way Phoenix 1862917 Digikey 277-6238-ND



3.2.1 Grounding

Figure 5 Grounding arrangement with IDB



Date: 15 May 2014 of 28



While the IDB itself does not require grounding, for safe operation, to comply with regional

electrical codes and to reduce the possibility of interference in the control and monitoring

electronics the OEM Fibre Laser, 24V DC Auxiliary PSU, laser integrator 5V DC power supply and

Diode PSU must be correctly grounded.

A star arrangement, as shown in Figure 5, is recommended. The star is connected to the negative

terminals of the 24V DC Auxiliary PSU, the Diode PSU and the protective conductor terminal of the

OEM Fibre Laser. The OEM Fibre Laser’s protective conductor terminal is an M5 threaded hole and

requires a fixing torque of 2Nm. The connections to the 24V DC Auxiliary PSU and the Diode PSU

should be made as close to the PSUs as possible. The protective conductor shall support a fault

current of 50A. The recommended wire size is 10mm2.

3.2.2 24V Supply

The 24V supply is connected via the 4 way screw terminal J6. Terminals 1 and 2 are connected to

24V and 3 and 4 to 0V. 24V and 0V are clearly marked on the IDB. The connected power supply

should be capable of supplying 2.0A. The 24V supply also powers the control and monitoring

electronics of the OEM Fibre Laser.

The 24V supply must be NRTL2 certified and adequately protected against short circuits.

3.2.3 Safety Circuit

To ensure safe operation, the laser integrator’s safety circuit must be connected to the 4 wire

screw terminal J11 as shown in Figure 6.

Figure 6 Connection of J11 Connector to Cabinet Door Interlock Switch

When connected in this way, if the cabinet door interlock is not closed then the laser cannot be

placed in the READY state. As soon as the interlock is opened the laser will stop emitting.

2 Nationally Recognized Testing Laboratory



Date: 15 May 2014 of 28



Table 7 Safety Circuit Connector Pinout

Pin Function Signal Level

1 Channel 2 Interlock N/A




3.2.4 User Interface

CAUTION: Unless the shutdown relays are open it must be assumed

that there is laser emission whatever the state of the signals on the

user interface.

Figure 7 User Interface Connector

The 15 way male D-type User Interface connector J4 has the pinout:

Table 8 User Interface Connector Pinout

Pin № Connection

Name

Description I/O Levels/ Scaling

1 Analogue

ground

0V for pins 2 and 9

2 Simmer Set Analogue input that sets the diode current when

Modulate is Low. The current is clamped at

approximately 25% rated power. 0 to 2.5V ... 0 to

25% rated power, >2.5V ... 25% Rated power.

Usually set to 0V.

I 0-10.5V

3 Laser ON

Request

Asserting Laser ON Request turns the OEM Fibre

Laser ON when the OEM Fibre Laser is in the

Ready state.

I Active High

4 RAL ON

Request

Asserting RAL ON Request turns on the pilot laser

(RAL)

I Active High



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Pin № Connection

Name

Description I/O Levels/ Scaling

5 Clear Alarms Asserting Clear Alarms clears the latched Alarm

conditions allowing the OEM Fibre Laser to be re-

enabled.

I Active High

6 Laser Ready Laser Ready is asserted when it is ready to be

turned on. This indicates that Enable High and

Enable Low are asserted and that no alarms or

warnings are present

O Active High

7 Not connected - - -

8 Heartbeat Pulsed output showing the status of the reset

processor.

O Active High

9 Power Set Analogue input that sets the diode current when

Modulate is High. 10V=100% Rated Power. Over-

drive up to 10.5V is possible.

I 0-10.5V


11 Modulate When the OEM Fibre Laser is ON, Modulate

switches the laser power between the levels set

by Power set and Simmer Set. It is the way of

operating the OEM Fibre Laser in the Digital

Modulation mode.

I Active High

12 Logic ground 0V for Logic Inputs - -

13 Master Alarm Master Alarm is an ORed combination of all the

OEM Fibre Laser alarm signals. When the OEM

Fibre Laser asserts Master Alarm it also shuts

down the optical output.

Master Alarm is a latching signal which can only

be cleared by asserting the Clear Alarms input.

O Active Low

See section

3.5.4

14 Logic ground 0V for Logic Inputs - -


3.3 Logic Levels

In this section the names of electrical connections are given in bold. Logic lines are asserted by

applying a voltage in the range 2.0 to 5V and de-asserted by applying a voltage in the range 0.0V

to 0.8V. These logic levels are illustrated in Figure 8.



Date: 15 May 2014 of 28



Figure 8 Logic Levels

3.4 Starting the OEM Fibre Laser

Figure 9 LED and Connector Identification. Terminals 1 marked by arrows

When the OEM Fibre Laser is first powered on some alarms may be triggered. This is normal. In

order to clear the alarms a sequence of pulses must be supplied to the OEM Fibre Laser. One

function of the IDB is to provide this sequence to the laser. The status of the start sequence can be

seen by the number of flashes of the “Heartbeat”. The Heartbeat may be observed as a blue LED



Date: 15 May 2014 of 28



mounted on the IDB, indicated in Figure 9 and as an output on the customer interface. To start the

laser the following sequence should be followed:

1. Ensure that these conditions are fulfilled.

a. 24V is supplied to the IDB.

b. The cabinet door interlock is wired correctly and is CLOSED.

c. The three cables connecting the laser to the IDB are correctly attached.

d. Heartbeat is flashing with 2 pulses.

2. Apply a logic High signal to Master Reset on the user interface for a minimum of 100ms.

Once the sequence is started the signal may be removed. Provided there is nothing to

prevent the laser starting the following sequence will occur:

e. The IDB will attempt to close the safety relay on the IDB.

f. When the safety relay is closed the shutdown relays within the OEM Fibre Laser will

close.

g. The IDB sends reset pulses to the OEM Fibre Laser. This can be seen on the green

LED marked “REFLEX”, indicated in Figure 9.

h. Provided no alarms are present the red LED marked “MSTR”, indicated in Figure 9,

will be extinguished.

i. The IDB then sends the ready signal to the OEM Fibre Laser. This can be observed

by the green LED marked “RDY” next to the user interface connector.

j. Heartbeat will then flash with 5 pulses.

3. Refer to the Product Manual for full details of operation in continuous wave (CW), analogue

modulation and digital modulation modes. To obtain a CW output from the OEM Fibre

Laser:

k. Set Simmer Set to 0V

l. Set the power required by applying a voltage to Power set. The voltage should be

between 500mV and 10.0V corresponding to output powers between 50W and 1kW.

m. Set Modulate to logic High

n. Set Laser ON Request to logic High

o. Laser emission will start



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3.5 Identifying Problems

3.5.1 Heartbeat

Table 9 Heartbeat

Appearance IDB Status Comment

Not flashing Power not applied to the IDB

2 pulses Interlock Open, Shut down relays not closed Laser will not operate

5 pulses Normal condition, Interlock Closed, Shutdown

relays closed

Laser Ready for operation

3.5.2 Safety Circuit

The safety relay used on the IDB has two channels and both channels must be closed and not be

shorted together for correct operation. The safety relay will detect any fault condition and will not

close. If the safety relay does not close Heartbeat will output three flashes. On the relay body there

are LEDs for both channels of the relay marked “CH.1” and “CH.2”. (The LEDs are identified in

Figure 10.) Once the relay has successfully closed both LEDs will be illuminated. If one of the

interlock switch circuits is broken the safety relay will open but only one of the LEDs will

extinguish.

Figure 10 Safety Relay LED Identification

3.5.3 Noise

If the OEM Fire Laser shows unpredictable behaviour, there may be noise on the analogue and,

especially, digital signal lines. Ensure that screened cables are used and that the OEM Fibre Laser

and IDB are grounded as shown in Figure 5.



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3.5.4 Alarms

Figure 11 Alarm Tree

Master Alarm, Internal Alarm and Optical Alarm are combinations of lower level alarms, as shown

in Figure 11.

Faults and remedial actions are described in Table 11 and in more detail in the Product Manual.

Relays Open is asserted if the shutdown relays are open. Close the shutdown relays as described in

Section 3.4 before proceeding

Pump Diode PSU Alarm is asserted if the pump diode PSU voltage is low or absent. Ensure that the

pump diode PSU is providing a voltage to the OEM Fibre Laser before proceeding.

Hardware Alarm is asserted if the OEM Fibre Laser’s internal diagnostics detect a fault. In this case,

contact SPI and do not proceed.

3.5.5 Alarms

If a alarm condition remains after the alarm clear pulses have been sent to the laser, the master

reset signal (MSTR) will still be present. To indicate this, the Heartbeat will flash four times. The

reason for the master reset signal not being extinguished will be shown by the red LEDs next

connector J4. All of these alarms are also available as logic outputs. Note that some outputs are

active low and some are active high. See the connector descriptions in Section 3.6 below for

details.

An alarm will cause the OEM Fibre Laser to shut down but will not cause the shutdown relays in the

OEM Fibre Laser or the safety relay on the IDB to open: only opening the interlock will cause the

safety relay and shutdown relays to open. If an alarm appears it may be cleared by deasserting the

Laser Reset signal on the user interface then reasserting it. The reset pulse sequence will be

applied to the OEM Fibre Laser to clear the alarm but the safety relay will remain closed.

3.6 Connector Details

The remaining connectors on the IDB may be used to provide additional monitoring of the OEM

Fibre Laser by the laser integrator’s system. Refer to Figure 9 for connector locations.



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These connectors pass through the outputs of the OEM Fibre Laser. In the sections below the same

descriptions used in the OEM Fibre Laser Product Manual have been used, so that, for instance,

Internal Alarm refers to an internal alarm in the OEM Fibre Laser, not in the IDB.

3.6.1 J12 Safety Relay Status

This provides the laser integrator with a floating contact which closes when the safety relay closes.

3.6.2 J7 Logic Outputs

Table 10 Logic Outputs Connector Pinout

Pin

№

Name LED Description I/O Levels/

Scaling

1 Laser ON

Report

Green Laser ON Report is asserted when the OEM Fibre

Laser is actually ON. That is Laser ON Request is

asserted and there are no alarms or warnings.

O Active

High

2 RAL ON

Report

Green RAL ON Report is asserted when there is a

voltage across the RAL laser diode3.

O Active

High

3 Internal

Alarm

Red Internal Alarm is an ORed combination of alarm

states.

Internal Alarm is a latching signal which can only


O Active

Low

See

section

3.5.4

4 Optical

Alarm

Red Optical Alarm is an ORed combination of alarm

states.

Optical Alarm is a latching signal which can only


O Active

Low

See

section

3.5.4

5 Spare - Do not use - -

6 Pump PSU

Alarm

Red Pump Power Supply Alarm is asserted when that

there is a loss of voltage from the diode PSU.

Pump Power Supply Alarm is a latching signal

which can only be cleared by asserting the Clear

Alarms input.

O Active

Low

3 Note: In some situations the RAL laser diode may not emit light even when there is a voltage across it. To

check that the RAL is emitting light monitor RAL Photodiode on connector J3.



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Pin

№

Name LED Description I/O Levels/

Scaling

7 Back

Reflection

Warning

Red Back Reflection Warning is asserted when the

back reflection levels into the OEM Fibre Laser

are high. Assertion of this state does not shut

down the optical output.

O Active

Low

8 0V - Reference. Internally connected to 0V of 24V

supply

- -

3.6.3 J8 Alarm Outputs

Note that attempting to reset alarms where Contact SPI. Do not reset alarm is indicated and

restarting the OEM Fibre Laser could result in internal damage to the OEM Fibre Laser.

Table 11 Alarm Outputs Connector Pinout

Pin

№

Label

on IDB

LED Name Description Action I/O Levels/

Scaling

1 Reflex

1

Red Reserved Do not use. - - -

2 Reflex

2

Red Output Alarm Asserted within

20ms if there is no

output power or

seed power when

power is requested

Contact SPI. Do not

reset alarm

O Active

high

3 Reflex

3

Red Ground

Alarm

Asserted if there is a

ground leakage path

between the pump

diodes and the cold

plate.

Contact SPI. Do not

reset alarm

O Active

high

4 Reflex

4

Red Scattered

Light Alarm 1

Asserted within 1ms

when scattered light

detector 1 exceeds a

threshold.

Contact SPI. Do not

reset alarm

O Active

high

5 Reflex

5

Red Scattered

Light Alarm 2

Asserted within 1ms

when scattered light

detector 2 exceeds a

threshold.

Contact SPI. Do not

reset alarm

O Active

high



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Pin

№

Label

on IDB


Scaling

6 Reflex

6

Red BDO Alarm 1 Asserted if: Check for fault

conditions

O Active

high

1. A high power

fibre break is

detected

If the cable is

damaged Contact

SPI. Do not reset

alarm.

2. An over-

temperature in

the optical

connector is

detected

If the connector is

too hot allow to cool

and check for

damage.

3. The optical

connector is not

mated into a

suitable

receptacle

If connector is

unmated mate

connector. Fault

must be reset to

resume operation

7 Reflex

7

Red BDO Alarm 2 Asserted if a fibre

break at low power

is detected

Contact SPI. Do not

reset alarm

O Active

high

8 Reflex

8

Red Cold Plate

Temp Alarm

Asserted when cold

plate temperature is

less than 5°C or

more than 54°C

May indicate

insufficient water

flow. Cold plate

must be allowed to

cool to less than

25°C and alarm must

be reset to resume

operation

O Active

high

9 Reflex

9

Red Electronics

Temp Alarm

Asserted when

electronics

temperature is more

than 80°C

May indicate

insufficient water

flow. Electronics

must be allowed to

cool and alarm must

be reset to resume

operation

O Active

high

10 Reflex

10

Red Reserved Do not use. - - -



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Pin

№

Label

on IDB


Scaling

11 Reflex

11

Red Back

Reflection

Alarm

Asserted when the

optical engine

temperature is more

than 62°C

May indicate

sustained high back

reflection. The

optical engine must

be allowed to cool

and alarm must be

reset to resume

operation

O Active

high

12 Reflex

12

Red Reserved - - O Active

high

13 0V - Reference. Internally connected to 0V of 24V supply - -

14 0V - - -

3.6.4 J1 Analogue Outputs A

Table 12 Analogue Outputs A Connector Pinout

Pin

№

Connection

Name

Description I/O Levels/

Scaling

1 V0 Pump diode control voltage 0. O See Product

Manual 2 V1 Pump diode control voltage 1. O

3 V2 Pump diode control voltage 2. O

4 Reserved - -

5 Cold Plate

Temp 1

A voltage representing the temperature at position 1

on the cold plate.

O 40mV/ºC

6 Cold Plate

Temp 2

A voltage representing the temperature at position 2

on the cold plate.

O

7 Electronics

Temp

A voltage representing the electronics temperature. O

8 Optical

Engine Temp

A voltage representing the optical engine temperature. O

9 Reserved - - -

10 I0 A voltage representing the current through the first

pump bank.

O 0.25VA-1



Date: 15 May 2014 of 28



Pin

№

Connection

Name


Scaling

11 I1 A voltage representing the current through the second

pump bank.

O

12 I2 A voltage representing the current through the third

pump bank.

O

13 Reserved - -

14 0V Reference. Internally connected to 0V of 24V supply. - -

3.6.5 J3 Analogue Outputs B

Table 13 Analogue Outputs B Connector Pinout

Pin

№

Connection

Name


Scaling

1 Humidity

Monitor 1

A voltage representing the Relative Humidity in position

1 within the OEM Fibre Laser

O See

Product

Manual

2 Humidity

Monitor 2

A voltage representing the Relative Humidity in position

2 within the OEM Fibre Laser

O See

Product

Manual

3 RAL

Photodiode

A voltage representing the power of the pilot laser O See

Product

Manual

4 Reserved - - -

5 Back

Reflection

Monitor

A voltage representing the signal from the back

reflection monitor

O See

Product

Manual

6 Seed Power

Monitor

A voltage representing the output power of the first

stage of the OEM fibre Laser. Nominally 1V at rated

power. Works with Output Power Monitor and Power set

to generate an output alarm. (Not on 500W units)

O 2V/kW

(nom)

7 Output Power

Monitor

A voltage proportional to the output power of the OEM

fibre Laser. 1V at rated power. Works with Seed Power

Monitor and Power set to generate an output alarm.

O 1V/kW

±5%

8 Reserved Do not use. - -





Date: 15 May 2014 of 28



Pin

№

Connection

Name


Scaling


12 Scattered Light

1

A voltage representing the scattered light in the OEM

Fibre Laser enclosure. (Detector 1)

O See

Product

Manual 13 Scattered Light

2

A voltage representing the scattered light in the OEM

Fibre Laser enclosure. (Detector 2)

O

14 0V - - -

3.7 Operation with Digital Interface

When the OEM Fibre Laser is connected through one of its digital interfaces – Ethernet, RS-232,

RS-485 and CAN bus - three modes of operation are available to control or monitor the OEM Fibre

Laser. (These modes are separate from the three modes of operation of the OEM Fibre Laser:

continuous wave (CW), analogue modulation and digital modulation.) The functions available using

analogue and logic signals are retained and further monitoring and control functions are added.

The mode setting is non-volatile, so the laser powers up in the mode it was in when it was turned

off.

More details of the modes are given below, with a summary of the key differences in Table 14

below.

Table 14 Control Signal Sources in Digital Modes

Control Signal Mode A Mode B Mode C

Power set User Interface

Connector

Digital interface Digital interface

Simmer Set User Interface

Connector

Digital interface Digital interface

Laser ON Request User Interface

Connector

User Interface

Connector

Digital interface

Modulate User Interface

Connector

User Interface

Connector

Digital interface

RAL ON Request User Interface

Connector

User Interface

Connector

Digital interface

3.7.1 Mode A

Mode A is easy to add to an existing installation which uses the analogue and logic interface, and

allows the additional monitoring channels to be read. In this mode the parameters available on the

Analogue and Logic Interface can be read back from the OEM Fibre Laser but none can be set. The



Date: 15 May 2014 of 28



OEM fibre laser can be reset following a alarm shutdown in this mode, but this is not

recommended.

3.7.2 Mode B

In mode B the power and all other all parameters can be set and read back from the OEM Fibre

Laser but to obtain laser emission appropriate logic levels must be applied to the pins of the

Analogue and Logic Interface connector of the OEM Fibre Laser as described in the Operating

Instructions section of the Product Manual. This is to ensure that laser emission cannot be

commanded remotely.

The OEM fibre laser can be reset remotely in this mode following a alarm shutdown, but this is not

recommended.

The OEM Fibre Laser can be operated in continuous wave (CW) and digital modulation modes but

analogue modulation is not available as Power set and Simmer Set are not used.

3.7.3 Mode C

In mode C the power and all other all parameters can be set and read back from the OEM Fibre

Laser and laser emission can be commanded. Ensure that sufficient laser safety measures are in

place before using this mode.

In this mode the OEM Fibre Laser can only be operated CW.

It is not necessary to connect to the Analogue and Logic Interface in this mode, but the analogue

signals on it are still available, however the digital lines are disabled.

3.7.4 GUI

In all modes a GUI (Graphical User Interface) running on a Windows PC can be used to monitor the

full status of the laser including alarms, digital status outputs and analogue monitoring and

diagnostic outputs. For operation over the digital interfaces refer to OEM Fibre Laser Digital

Interface Manual SM-S00361 or OEM Fibre Laser GUI Manual SM-S00363.

4 Trade Marks

The SPI logo, GTWave, redPOWER and redENERGY are trademarks or service marks (registered or

applied for) of SPI Lasers UK Limited in at least one of the United States of America, the United

Kingdom, the European Community, and various other territories throughout the world. All other

trademarks are the property of their registered owners.

5 Warranties

SPI expressly warrants the Product it manufactures as set forth in the standard Terms and

Conditions of sale. SPI makes no other warranties, expressed or implied, including and without

limitation, warranties as to merchantability or fitness for a particular purpose.



Date: 15 May 2014 of 28



6 Contact Information

Table 15 Contact Information

UK Head Office and

Manufacturing Facility US Corporate Office China Office Korea Office

SPI Lasers UK Limited SPI Lasers LLC SPI Lasers (Shanghai)

Co., Ltd. SPI Lasers Korea Ltd.

6 Wellington Park

Hedge End

Southampton

SO30 2QU

UK

Tel: +44 (0)1489

779696

4000 Burton Drive

Santa Clara

CA 95054

USA

Tel: +1 408 454 1169

Room 108, Building 3

No. 7 Guiqing Road

Caohejing Hi-tech

Park

Shanghai 200233

China

Tel: +86 (0) 21 6171

9470

#508, DMC Tower

1622 Sangam-dong

Mapo-gu

Seoul

Korea

Tel:+82 2 3151 9591

Customer Services

[email protected]

Tel: +44 (0)1489 779696 - Option 5

Company Web Site

www.spilasers.com

Product Support

[email protected]

Tel: +44 (0)1489 779696 - Option 2

[email protected]

Contact your local office number

Or contact your local distributor.

http://www.spilasers.com/

mailto:[email protected]

spi lasers uk limited pt-e01739 kw oem fibre laser ...laser by three cables, is indicated by the...

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