ASTAT ®-IBP Plus Service Instructions
Troubleshooting Guide
This guide is provided for troubleshooting and isolating common problems. It does not cover every possible situation. Contact the Customer Support Center at
Symptom or Error & (Error Code) | Possible Cause | Measures to Be Taken | |
Display OFF |
| No control voltage. | Check wire harness and control voltage |
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| Main breaker tripped or fuse blown |
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| F1 fuse blown on power supply PCB | Check and change. |
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| Bad connection of flat ribbon wire | Verify connectors. |
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| joining power supply PCB to control | Check power supply board and logic |
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| PCB | board for 5VDC. Use a DC voltmeter on |
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| the power supply board, |
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| voltmeter on the top lead of C6 (located |
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| next to the black heatsink on the right |
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| edge of the power supply board) and the |
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| (+) lead of voltmeter on top lead of Diode |
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| AD21 or R25 (located on the upper right |
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| corner of the power supply board.) |
Equipment does not respond to STOP / | F2 fuse blown on power supply PCB | Check and change. | |
START controls |
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Frequency error (admits |
| No 1L1 phase or frequence is out of | Check 1L1 phase and/or mains |
45Hz ≤ f main ≤ 65Hz) | (Ex10) | range | frequence |
Overload trip | (Ex11) | Excessive load or excessive current | Verify overload conditions during starting |
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| during starting | time and steady state. Check settings in |
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| parameters "Nxxx", "Lxxx", and "oxxx" |
Synchronism loss | (Ex13) | Phase 1L1 lost | Check 1L1 phase |
Phase A, B, C thyristor | (Ex14) | Short circuited thyristor | Check thyristor module. |
| (Ex15) |
| Check ground connections and voltage to |
| (Ex16) |
| ground. |
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| Poor ribbon cable connection |
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| No output phases | Check 2T1, 4T2 and 6T3 phases |
Heatsink thermostat | (Ex17) | Heatsink thermostat tripped by | Check for adequate ventilation. |
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| overheating or defective | Check thermostat and wiring |
Motor thermistor(Ex18) |
| Motor thermistor tripped by | Check thermistor and wiring, if no |
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| overheating or defective | thermistor terminal 5 and 6 must be |
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| jumpered |
Phase A, B, C loss | (Ex19) | No input / output phases | Check power wire harness for 1L1, |
| (Ex20) |
| 3L2, 5L3, 2T1, 4T2 and 6T3 |
| (Ex21) | Defective thyristor or ribbon wire | Verify gate and cathode wire harness. |
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| harness loose or defective | Verify thyristors |
Stalled rotor | (Ex22) | Equipment detected stalled motor | Restart equipment and check for an |
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| rotor | appreciable loss in motor speed at any |
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| time |
Internal error | (Ex23) | Check IC1 and IC8 are correctly inserted | |
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| in their sockets. |
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| Check for noise on control voltage power |
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| or line |
Long start time | (Ex25) | Current limit condition present more | Increase current limit and / or acceleration |
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| than2 x ta sec. or 240 sec. (ta = | ramp time |
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| acceleration ramp time) |
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(Ex27) | The time between startings is less | Check if settings are correct. | |
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| that the adjusted in parameter "LKxx" | This protection may be disabled |
Undervoltage | (Ex28) | The line voltage exceeds of limit set in | Check if settings are correct. |
Overvoltage | (Ex29) | parameters "UVxx" or "OVxx" | This protection may be disabled |
Undercurrent | (Ex30) | The motor current exceeds of limit set | Check if settings are correct. |
Overcurrent | (Ex31) | in parameters "UCxx" or "OCxx" | This protection may be disabled |
Prices and data subject to change without notice. | 11 |