Siemens SINAMICS PERFECT HARMONY GH180 - Page 478

Fault Display Type Enable Potential causes and corrective actions
xx AFE Con󹪝guration
xx = cell that is faulted
F Fixed Cause
The AFE con󹪝guration fault occurs when a cell is not con󹪝gured properly.
The AFE con󹪝guration switch fault is applicable to 600 AP AFE, 750 AP, 750
AP 4Q, and 1375 HV AP cells.
Note: On 1375 HV AP cells, this causes an unresettable HV AP mismatch
fault as well.
Action
1. Check 󹪝ber optic link connections.
2. Replace CCB.
3. Contact Siemens customer service.
xx Di󹪜. Temp Warning
xx = cell that has alarm
A Fixed Cause
600 AP AFE, 750V AP, 750V AP 4Q, and 1375 HV AP cells contain sensors
that monitor the inlet and outlet water temperature to the heat sink within
the cell. This di󹪜erence between the inlet and outlet water temperature
passes from each CCB to the modulator. The main controller reads this
di󹪜erence in temperature and compares the value to parameter AP di󹪜
temp fault lvl (2596).
When the di󹪜erence between the inlet and outlet water temperature ex‐
ceeds the value of parameter (2596), a Cell Di󹪜 Temp alarm occurs.
Action
1. Replace clogged components within water path, i.e., cell, hoses, input
reactor.
2. Replace power cell.
xx Di󹪜. Temp Fault
xx = cell that is faulted
F Fixed Cause
600 AP AFE, 750V AP, 750V AP 4Q, and 1375 HV AP cells contain sensors
that monitor the inlet and outlet water temperature to the heat sink within
the cell. This di󹪜erence between the inlet and outlet water temperature is
passed from each CCB to the modulator. The main controller reads this
di󹪜erence in temperature and compares the value to parameter AP di󹪜
temp fault lvl (2596).
When the di󹪜erence between the inlet and outlet water temperature ex‐
ceeds the value of parameter (2596) by more than 2°C, a Cell Di󹪜 Temp
fault will occur.
Action
1. Replace clogged components within water path, i.e., cell, hoses, input
reactor.
2. Replace power cell.
xx AFE Will Not Run
xx = cell that is faulted
F Fixed Cause
This fault occurs if the AFE portion is asked to run when the conditions
within the cell will not allow the cells AFE portion to run. This applies to
AFE cells only (600V AFE AP and 750V AP 4Q).
Action
1. Verify that all 󹪝ber optic links are correctly connected to the appropri‐
ate cells.
2. Verify input voltage feedback.
3. Apply medium voltage and use the "Set Angles" function to correctly
set the cell angles.
Troubleshooting Faults and Alarms
11.12 Cell Faults and Alarms
NXGPro+ Control Manual
476 Operating Manual, A5E50491925A