Chapter 4 - Signals and Troubleshooting
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| CDP 31x |
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| (ALARM_WORD_1/2) |
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| display |
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A 108 |
| Alarm No Battery Backup Function for RAM | 11104 | bit 7 |
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| Capacitor for RAM backup has discharged |
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| (perhaps unit has been stored for too long |
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| without the electronics voltage switched |
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| on?); load capacitor by leaving unit electron- |
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| ics switched on for a lengthy period. |
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A 110 | System restart |
| Alarm System Restart |
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| Signal is filed in fault memory (fault logger), |
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| but not displayed at the unit or the LC- |
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| Display of the CDP 31x. |
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A 118 | Mains underv.alarm |
| Alarm Mains Undervoltage (AC) | 11104 | bit 10 |
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| Setting of undervoltage monitoring with Pa- |
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| rameter [P 508] |
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| Check: - See also Fault Code F 29. |
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A 120 | Arm.curr.dev.alarm |
| Alarm Armature Current Deviation | 11104 | bit 13 |
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| If the current reference [P 10405] deviates |
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| from the current feedback for more than |
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| 5 sec by more than 20 %, referenced to the |
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| rated current, this signal will be outputted. |
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A 121 | Ext.Overvolt.Alarm |
| Overvoltage protection DCF 506 has acted | 11105 | bit 6 |
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| There was an overvoltage condition in the |
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| DC circuit of the field supply, which had been |
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| S21.232 |
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| limited by the activation of a free wheeling |
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| circuit. |
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| higher |
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| Check: - Power wiring of the field supply |
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| - Control logic according to wiring |
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| example? |
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| - Does PP_DI_OVP [1216] has been |
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| connected to a binary input? |
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| - Setting of OVP_SELECT [1217] |
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| correct? (see Fault 121) |
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A 123 | Motor 2 temp. alarm |
| Alarm Overtemperature MOTOR 2 | 11104 | bit 8 |
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| Check: - Parameter setting MOT2.TEMP_ |
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| ALARM_L [P 1602] correct? |
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| See also Fault Code F 6. |
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A 124 | Motor 2 overl alarm |
| Alarm Overload MOTOR 2 (Thermal Model 2) | 11104 | bit 9 |
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| Check: - See Fault Code F 7. |
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A 126 |
| Conv.FAN ack.alarm |
| Alarm No (Thyristor Power) Converter FAN | 11104 | bit 12 |
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| Acknowledge |
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| Check: - See Fault Code F 50. |
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| DCS 500B / DCP 500B Operating Instructions |
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| IV A 4 - 13 | |||||||
3ADW000055R0401_DCS500B_Operating Instruction_e_d
