Table 11-17 Cooling Related - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

Troubleshooting Faults and Alarms
11.13 Dedicated I/O for Input Protection
and event logs. This fault does not cause the removal of the MV power, it records the event after
the fact. Refer to Section System Arc Detection of Chapter Operating the Control for information
about this safety feature.
Table 11-17 Cooling Related
Fault Display
One Blower Not Avail
All Blowers Not Avail
Clogged Filters
NOTE: On more recent drives a separate PLC controls the cooling. refer to that documentation if this is the case. The
following faults will not occur within the drive if a separate cooling PLC is used.
488
Type Enable
A SOP
F/A SOP
F/A SOP
Potential Causes and Corrective Actions
Cause
Drive initiated alarm set when the OneBlowerLost_O SOP
flag is set true and the alarm is enabled by
setting OneBlowerLost_EN_O true. On an air cooled drive,
when one of either of the cell blowers or transformer blowers
is not functioning, this is triggered via the SOP. This is part of
the Standard SOP for air cooled drives.
Action
1. Check physical input connected to SOP flag.
2. Check for faulty blowers or obstruction.
Cause
Drive initiated alarm or fault when AllBlowerLost_O SOP
flag is set true and the alarm/fault is enabled by setting
the AllBlowerLostEn_O flag true. This defaults to a fault
with no way to change to a warning with this release. If an
alarm is desired, then the flag AllBlowersLostWn_O must
also be set true. This is triggered by the SOP when 2 of 3 cell
banks or both transformer banks of blowers is not function‐
ing. This is primarily used as a trip alarm preceding an over
temperature trip, used on air cooled drives as part of the
Standard SOP.
Action
1. Check physical input connected to SOP flag.
2. Check for faulty blowers or obstruction.
Cause
Drive initiated fault/alarm when the CloggedFilters_O
SOP flag is set true and the CloggedFiltersEn_O flag is
set true to enable it. The default is a fault. If you desire an
alarm, then the flag CloggedFiltersWn_O must be set
true. This is used when an air filter becomes clogged to warn
of reduced air flow. This is not part of the Standard SOP.
Action
1. Check physical input connected to SOP flag.
2. Change filter or check for obstruction.
NXGPro+ Control Manual
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