English (GB)
15
246
Power card
supply
This alarm is only for multi-drive systems. It is
equivalent to alarm 46, Power card supply. The
report value in the alarm log indicates which drive
module generated the alarm:
1: Left drive module.
2: Second drive module from left.
3: Third drive module from left (in 4-module
systems)
4: Fourth drive module from left (in 4-module
systems).
Check the steps for alarm 46. A
247
Power card
temperature
This alarm is only for multi-drive systems. It is
equivalent to alarm 69, Power card temperature.
The report value in the alarm log indicates which
drive module generated the alarm:
1: Left drive module.
2: Second drive module from left.
3: Third drive module from left (in 4-module
systems).
4: Fourth drive module from left (in 4-module
systems).
Check the steps for alarm 69. A
248
Illegal power
section
configuration
This alarm is only for F-frame drives. It is equivalent
to Alarm 79. The report value in the alarm log
indicates which power module generated the alarm:
1: Left most inverter module.
2: Middle inverter module in F2 or F4 drive.
3: Right inverter module in F1 or F3 drive.
4: Right inverter module in F2 or F4 drive.
5: Rectifier module.
Check the steps for alarm 79. A
249
Temperature of
the rectifier heat
sink
This alarm is only for multi-drive systems. It is
equivalent to alarm 79, Illegal power section
configuration. The report value in the alarm log
indicates which drive module generated the alarm:
1: Left drive module.
2: Second drive module from left.
3: Third drive module from left (in 4-module
systems).
4: Fourth drive module from left (in 4-module
systems).
Check the steps for alarm 79. A
250 New spare part
The power or switch mode power supply has been
exchanged. The adjustable frequency drive type
code must be restored in EEPROM.
Select the correct type code in parameter
"14-23 Typecode Setting" according to the
label on the unit. Remember to select "Save
to EEPROM" to complete.
W
251 New type code
The power card or other components have been
replaced and the type code has been changed.
Reset to remove the warning and to resume
normal operation.
w
274
The flow is not
confirmed
A signal from an external device, for example flow
switch, was not received within the time specified in
parameter 29-50 after start signal (startup
monitoring). It could be caused by for example a
defective flow switch, defective pump, closed inlet
valve, no water on the inlet side.
Run the pump (carefully) in Hand mode, to
see if there actually is flow in the system.
Subsequently check the functionality of the
flow switch.
A
275
Flow switch
failure
A signal from an external device (flow switch) was
not received or lost during a running condition, see
parameter 29-52.
It could be caused by defective flow switch,
defective pump, closed inlet valve, no water on the
inlet side.
Run the pump (carefully), to see if there
actually is flow in the system. Subsequently
check the functionality of the flow switch.
A
Alarm
code
Description Cause Remedy Type
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