Brand: GE
Category: Other
Document Type: Manual
Language: EN
Available Languages: EN , ES
Uploaded: Nov. 21, 2025, 9:18 p.m.
Manual Publish Date: 2001-09-01
| Symptom or Error & (Error Code) | Possible Cause | Measures to Be Taken |
| Display OFF | No control voltage. | Check wire harness and control voltage |
| Main breaker tripped or fuse blown | Check and change. | |
| F1 fuse blown on power supply PCB | Verify connectors. | |
| Bad connection of flat ribbon wire joining power supply PCB to control PCB | Check power supply board and logic board for 5VDC. Use a DC voltmeter on the power supply board, (-) lead of voltmeter on the top lead of C6 (located next to the black heatsink on the right edge of the power supply board) and the (+) lead of voltmeter on top lead of Diode AD21 or R25 (located on the upper right corner of the power supply board.) | |
| F2 fuse blown on power supply PCB | Check and change. | |
| Equipment does not respond to STOP / START controls | No 1L1 phase or frequency is out of range | Check 1L1 phase and/or mains frequence |
| Frequency error (admits 45Hz ≤ f main ≤ 65Hz) (Ex10) | Excessive load or excessive current during starting | Verify overload conditions during starting time and steady state. Check settings in parameters "Nxxx", "Lxxx", and "oxxx" |
| Overload trip (Ex11) | Phase 1L1 lost | Check 1L1 phase |
| Synchronism loss (Ex13) Phase A, B, C thyristor (Ex14) (Ex15) (Ex16) | Short circuited thyristor | Check thyristor module. |
| No output phases | Check ground connections and voltage to ground. Poor ribbon cable connection | |
| Heatsink thermostat (Ex17) | Heatsink thermostat tripped by overheating or defective | Check 2T1, 4T2 and 6T3 phases Check for adequate ventilation. Check thermostat and wiring |
| Motor thermistor(Ex18) | Motor thermistor tripped by overheating or defective | Check thermistor and wiring, if no thermistor terminal 5 and 6 must be jumpered |
| Phase A, B, C loss (Ex19) (Ex20) (Ex21) | No input / output phases | Check power wire harness for 1L1, 3L2, 5L3, 2T1, 4T2 and 6T3 |
| Stalled rotor (Ex22) | Defective thyristor or ribbon wire harness loose or defective Equipment detected stalled motor rotor | Verify gate and cathode wire harness. Verify thyristors Restart equipment and check for an appreciable loss in motor speed at any time |
| Internal error (Ex23) | Micro-controller malfunction | Check IC1 and IC8 are correctly inserted in their sockets. Check for noise on control voltage power or line |
| Long start time (Ex25) | Current limit condition present more than 2 x ta sec. or 240 sec. (ta = acceleration ramp time) | Increase current limit and / or acceleration ramp time |
| Lock-out (Ex27) | The time between startings is less that the adjusted in parameter "LKxx" | Check if settings are correct. This protection may be disabled |
| Undervoltage (Ex28) Overvoltage (Ex29) | The line voltage exceeds of limit set in parameters "UVxx" or "OVxx" | Check if settings are correct. This protection may be disabled |
| Undercurrent (Ex30) Overcurrent (Ex31) | The motor current exceeds of limit set in parameters "UCxx" or "OCxx" | Check if settings are correct. This protection may be disabled |