Danfoss VLT Ea4, Руководство по эксплуатации

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6.9.35 WARNING/ALARM 35, Option Fault
Cause
An option alarm is received. The alarm is option-specific. The most likely cause is a power-up or a communication fault.
6.9.36 WARNING/ALARM 36, Mains Failure
Cause
This warning/alarm is only active if the supply voltage to the drive is lost and parameter 14-10 Mains Failure is not set to [0] No Func-
tion .
Troubleshooting
Check the fuses to the drive and mains supply to the unit.
6.9.37 ALARM 37, Phase Imbalance
Cause
There is a current imbalance between the power units.
6.9.38 ALARM 38, Internal Fault
Cause
When an internal fault occurs, a code number defined in Table 20 is shown.
Troubleshooting
Cycle power.
Check that the option is properly installed.
Check for loose or missing wiring.
It may be necessary to contact the Danfoss supplier or service department. Note the code number for further troubleshooting guid-
ance.
Table 20: Internal Fault Codes
Number Text
0 The serial port cannot be initialized. Contact the Danfoss supplier or Danfoss service department.
256–258 The power EEPROM data is defective or too old. Replace the power card.
512–519 Internal fault. Contact the Danfoss supplier or Danfoss service department.
783 Parameter value outside of minimum/maximum limits.
1024–1284 Internal fault. Contact the Danfoss supplier or Danfoss service department.
1299 The option software in slot A is too old.
1300 The option software in slot B is too old.
1302 The option software in slot C1 is too old.
1315 The option software in slot A is not supported/allowed.
1316 The option software in slot B is not supported/ allowed.
1318 The option software in slot C1 is not supported/ allowed.
1379–2819 Internal fault. Contact the Danfoss supplier or Danfoss service department.
1792 Hardware reset of digital signal processor.
1793 Motor-derived parameters not transferred correctly to the digital signal processor.
1794 Power data not transferred correctly at power-up to the digital signal processor.
1795 The digital signal processor has received too many unknown SPI telegrams. The AC drive also uses this fault code if
the MCO does not power up correctly. This situation can occur due to poor EMC protection or improper grounding.
AQ434333248451en-000101 / 130R1286 | 55 Danfoss A/S © 2023.01
Operating the Drive
VLT Ea4 Parallel Drive Modules
Operating Guide