nokia flexi bts alarms
Post on 14-Apr-2015
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Alarms In NOKIA FLEXI BTS
BY : Preetam Kumar Jangid
1.) 7401 Alarm
Syntex Mains FailureType N/CSeverity MajorColour Green & Green/WhitePin 7, 25Root
PIU DDF BTS
Root cause Alarm occurs when there is no AC power supply on siteCause 1. AC gets failure due to regular AC cut.
2. AC gets failure due to any s/c.3. AC gets failure due to any o/c.
Verification To check the alarm Switch off the mains MCB from PIU. To remove alarm turn on the mains mcb.
2.) 7402 Alarm
Syntex Rectifier FailType N/OSeverity MinorColour Blue & Blue /WhitePin 8, 26Root
Alarm panel Of P.P. DDF BTS
Root cause Alarm occurs when any one of the SMPS gets failure.Cause 1. Any SMPS gets failure.
2. Due to failure of MCB.3. Due to any s/c.
Verification To check the alarm firstly remove the rectifier from the SMPS or switch off the MCB of rectifier from SMPS. To remove alarm switch on the.MCB of the
rectifier moduleor insert the new rectifier module.
3.) 7403 Alarm
Syntex Low Battery VoltageType N/OSeverity CriticleColour Violet & Violet /WhitePin 9, 27Root
Alarm panel Of P.P. DDF BTS
Root cause Alarm occurs when Battery voltage reaches 46V/47V.Cause 1. When AC gets failure and D.G. is not working & site
on battery from last 3-4 hrs.2. When Battery is not fully charged and load on
battery.Verification To check the alarm set the o/p load vtg of battery
less then 48V & switch off the MCB & D.G.. To remove alarm switch on the.MCB (mains) or
switch on the D.G. if AC is not available.
4.) 7404 Alarm
Syntex Site On Battery
Type N/OSeverity MajorColour Gray & Gray /WhitePin 10, 28Root
Alarm panel Of P.P. DDF BTS
Root cause Alarm occurs when all SMPS & Rectifiers gets failure.Cause 1. When AC gets failure and D.G. does not start.
2. AC gets fail DG is off.3. DG is not working properly.4. AC gets failure & DG is not available at site.5. All SMPS & rectifires gets failure.
Verification To check the alarm switch off the mains MCB from PIU & switch off DG also. To remove alarm switch on the mains MCB or DG
(if mains is not available).
5.) 7405 Alarm
Syntex Site On DGType N/OSeverity MinorColour Pink & Pink /WhitePin 11, 29Root
PIU DDF BTS
Root cause Alarm occurs when load of site on DG.Cause 1. When AC gets failure due to cutting time.
2. AC gets fail due to s/c.3. MCB gets failure.
Verification To check the alarm switch off the mains MCB from
PIU & switch on the DG (if it is not in auto mode). To remove alarm switch on the mains MCB (if
mains is available).
6.) 7406 Alarm
Syntex DG LLOPType N/OSeverity CriticleColour Light Green & Black /GreenPin 12, 30Root
LLOP Sensor PIU DDF BTS
Root cause Alarm occurs when lube oil pressure gets below then specified level.
Cause 1. Due to leakage of lubricant.2. Due to overflow of lubricant.3. Due to no service on time.4. Due to no oil change on the time.
Verification To check the alarm switch off the mains MCB from PIU & switch off the DG also. To remove alarm maintain the lubricant oil
pressure till specified level.
7.) 7407 Alarm
Syntex Low Fuel LevelType N/OSeverity MinorColour Light Blue & Black /BluePin 13, 31
Root Fuel Sensor PIU DDF BTS
Root cause Alarm occurs when fuel level goes below then 40% of the capacity.
Cause 1. When site on DG from long time.2. When fuel tank is not fully filled.3. Tank have leakage.
Verification To check the alarm see if the desired fuel level of DG is set on 40% or not. To remove alarm fill the tank of DG.
8.) 7408 Alarm
Syntex DG Fails To StartType N/OSeverity MajorColour White & Black /WhitePin 13, 31Root
PIU DDF BTS
Root cause Alarm occurs when PIU is not able to start DG in 3 attempts.
Cause 1. Due to problem in self.2. Self battery is not charge.3. No fuel in DG.4. No connection b/w PIU & Self.
Verification To check the alarm switch off the mains mcb from PIU and check dg set is not in auto mode or remove the connection b/w PIU and Self. To remove alarm start DG in manual mode.
9.) 7409 Alarm
Syntex AC FailureType N/OSeverity MajorColour Light Gray & Black /light grayPin 15, 33Root
µC DDF BTS
Root cause Alarm occurs when both AC gets failure.Cause 1. Due to problem in µC.
2. Site on battery.3. Level of gas in AC goes below then the
specified level.4. Switching problem.
Verification To check the alarm switch off the AC’s. To remove alarm switch on/repair/replace AC’s.
10.) 7410 Alarm
Syntex Door OpenType N/CSeverity Minor/Major/Criticle (Accd. to condition)Colour Red/ Black & Red/BluePin 16, 34Root
Door Sensor PIU DDF BTS
Root cause Alarm occurs when Door is open.Cause 1. Unauthorisd person is in the shelter.
2. Work on progress inside the shelter.3. Someone (may be technician, engineer or guard)
forget to close the door.4. Sealing of door is not proper.
5. Lock of door is not correct.Verification To check the alarm open the door.
To remove alarm close and seal proper the door.
11.) 7411 Alarm
Syntex High Room Temp.Type N/OSeverity MajorColour Orange/Red & orange/Light grayPin 16, 34Root
Temp.Sensor µc of AC DDF BTS
Root cause Alarm occurs when Temp reaches 35° c.Cause 1. AC is not working.
2. Door of shelter is open.3. Site on battery.
Verification To check the alarm rub thermister in b/w hands . To remove alarm switch on the AC & set AC temp
on desired value.
12.) 7412 Alarm
Syntex Fire & Smoke.Type N/OSeverity CriticleColour Orange/Black & Orange/GreenPin 18, 36Root
F& S sensor PIU DDF BTS
Root cause Alarm occurs when Fire & Smoke at site.Cause 1. Fire & Smoke at site.
2. Due to any inflammable object at site.Verification To check the alarm create a small fire by paper or
jute. To remove alarm Reset smoke & fire sensor and
clean the smoke from the sensor.
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