UCHC263 Farmington Ave, Farmington,CT 06030

VFD PM Checklist / Worksheet www.flowtechinc.com

Equipment TAG CHWP_1 DATE 2/132013

VFD Manufacturer ABB Location MARB BLDG 4th FLR

VFD Model ACH550UH08A84 VFD S/N 2052301486

Bypass Model ACH550VD08A84F267 Bypass S/N 2044000450

VFD SW/FW 203B HEX Operating Hours 44.57kh

Fault History: 6 0 0

VFD Fuses: N/A Main Fuses:

VFD O.L. Config: 1050s/110% VFD I-Limit Setting: 9.7

Bypass O.L. Config: 00010000

VFD U.V. Config: VFD Freq Limits: 12 TO 58 Hz

System Check System Check

Set / Confirm VFD Date/Time X Check Cooling Fan Operation X

Back-up Parameters to Panel X Record Fan Capacitor Rating N/A

Ambient Temp 22 C Record Fan Capacitor Actual N/A

VFD Temp at Check-out (Display) 34.2 C Motor / Wire Insulation Check X

IR Scan of VFD / Panel X Check Speed Control Signal X

Inspect / Tighten all Elec. Conn. X Check Other I/O Signals X

Clean VFD & Bypass Panel X Perform Static Diode / IGBT Test X

Check all Panel Indicator Lamps X Reset VFD Fault History X

DYNAMIC SYSTEM POWER CHECKS OPERATING SPEED 54.6 HZ

Input Voltage A-B: 480 Vac B-C: 480 Vac C-A: 481 Vac Display

Output Voltage A-B: 348 Vac B-C: 348 Vac C-A: 348 Vac 354 Vac

Input Current A: 2.2 Amps B: 2.4 Amps C: 2.3 Amps Display

Output Current A: 3.8 Amps B: 3.9 Amps C: 3.9 Amps 3.9 Amps

DC Bus Voltage DC Level: 641 Vdc AC Level: 15 Vac 642 Vdc

STATIC SYSTEM VOLTAGE CHECKS OPERATING SPEED 0 Hz

DC Bus Voltage DC Level: 657 Vdc AC Level: 1 Vac 660

+10vdc VFD Supply DC Level: 10 Vdc AC Level: 12 mVac N/A

+24vdc VFD Supply DC Level: 24 Vdc AC Level: 60 mVac N/A

Control TX Voltage AC Level: N/A

+7vdc E-Bypass V DC Level: 7 Vdc AC Level: 12 N/A

+24vdc E-Bypass V DC Level: 25 Vdc AC Level: 9 N/A

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UCHC263 Farmington Ave, Farmington,CT 06030

VFD PM Checklist / Worksheet www.flowtechinc.com

Equipment TAG CHWP_2 DATE 2/13/13

VFD Manufacturer ABB Location MARB BLDG 4th FLR

VFD Model ACH550UH08A84 VFD S/N 2053700714

Bypass Model ACH550VO08A84F267 Bypass S/N 2044000701

VFD SW/FW 206B HEX Operating Hours 42.47kh

Fault History: 0 0 0

VFD Fuses: N/A Main Fuses:

VFD O.L. Config: 1050s/110% VFD I-Limit Setting: 9.7

Bypass O.L. Config: 00010000

VFD U.V. Config: VFD Freq Limits: 12 TO 58 Hz

System Check System Check

Set / Confirm VFD Date/Time X Check Cooling Fan Operation X

Back-up Parameters to Panel x Record Fan Capacitor Rating N/A

Ambient Temp 22 C Record Fan Capacitor Actual N/A

VFD Temp at Check-out (Display) 33.7 C Motor / Wire Insulation Check X

IR Scan of VFD / Panel X Check Speed Control Signal X

Inspect / Tighten all Elec. Conn. X Check Other I/O Signals X

Clean VFD & Bypass Panel X Perform Static Diode / IGBT Test X

Check all Panel Indicator Lamps X Reset VFD Fault History X

DYNAMIC SYSTEM POWER CHECKS OPERATING SPEED 58 HZ

Input Voltage A-B: 482 Vac B-C: 483 Vac C-A: 479 Vac Display

Output Voltage A-B: 393 Vac B-C: 394 Vac C-A: 394 Vac 396 Vac

Input Current A: 2.4 Amps B: 2.9 Amps C: 2.6 Amps Display

Output Current A: 4.2 Amps B: 4 Amps C: 4.1 Amps 4.2 Amps

DC Bus Voltage DC Level: 643 Vdc AC Level: 14 Vac 641 Vdc

STATIC SYSTEM VOLTAGE CHECKS OPERATING SPEED Hz

DC Bus Voltage DC Level: 658 Vdc AC Level: 1.5 Vac 658

+10vdc VFD Supply DC Level: 10 Vdc AC Level: mVac N/A

+24vdc VFD Supply DC Level: 25 Vdc AC Level: mVac N/A

Control TX Voltage AC Level: N/A

+7vdc E-Bypass V DC Level: 7.74 Vdc AC Level: 12 N/A

+24vdc E-Bypass V DC Level: 25 Vdc AC Level: 18 N/A

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