Inspection Operation - Magnetek Hpv 900 - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

13.2.3 Inspection Operation - Magnetek HPV 900

The following procedure is a sequence of operations for inspection mode. It is for applications using
the Magnetek HPV 900 drive. MG and Magnetek DSD 412 applications are different. Refer to the MG
Inspection Sequence of Operations, Section 13.2.2 and Magnetek DSD 412 Inspection Sequence of
Operations, Section 13.2.1.
1. Place car on inspection on controller, try to run car up and down using toggle switch
on relay board. Does the car run? If so, go to Automatic Operation troubleshooting
procedure, Section 13.3.
2. SAF, SAFX and RX relays picked?
-Check for blown AC2 fuse or open in safety circuit, line 40.
3. CG and CGX picked?
-Check for open gate switch, line 48.
4. DG and DGX picked?
-Check for open door lock contact, line 47.
5. Hold Up/Dn toggle switch: IUP or IDN pick?
-Check for blown 24VDC fuse, line 60, or open in inspection circuit, line 60.
6. Hold Up/Dn toggle switch: U and UX or D and DX relays pick?
- Check for open directional limit contact, line 55 & 58, faulty relay or contact failure in
direction circuit.
7. Does PX relay pick?
-Check for faulty relay or contact failure in direction circuit, line 56.
8. Does BKX relay pick?
-Check for faulty relay or contact failure in BKX circuit, line 73.
9. Does M relay pick?
-Check for faulty relay or contact failure in M circuit, line 71.
10. Does SR relay pick?
-Check for faulty relay or contact failure in SR circuit, line 102.
11. Does the drive run signal (TB1-2) turn on?
-Check for contact failure in drive run circuit, line 102.
12. Does LPR relay pick?
-Check for 110 VAC at drive terminal TB2-54 to AC1 at line 117. If missing, check for
contact failure on SR relay. If present, check drive terminal TB2-55 to AC1 at line 117.
If voltage is missing, drive is not enabling. Reset drive and retry. If the drive still not
enabling, possible bad drive. Contact O. Thompson Technical Support. If voltage is
present at TB2-55 then LPR relay is faulty.
13. Does the MA contactor pick?
-Check for faulty relay or contact failure in MA circuit, line 79.
14. Does MB relay pick?
-Check for faulty relay or contact failure in MB circuit, line 78.
15. Does P relay pick?
-Check for faulty relay or contact failure in P circuit, line 77.
16. Does BK relay pick?
-Check for faulty relay or contact failure in BK circuit, line 76.
17. Does the brake lift?
-Check brake regulator at line 92. Is V/I-1, V/I-2 or V/I-3 LED on?
Revision: AA 2.2
Microflite Ultra 2000
-If not, check signaling at line 92. V/I-1 is brake pick voltage, V/I-2 is hold
voltage, V/I-3 is re-leveling voltage.
-If LED is on, check regulator output DC voltage at terminals F+ to F-. If
missing possible bad regulator. If present check for contact failure in brake
circuit at line 97.
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