Analog Input 54 Wrong Settings; Mixing Fan Fault; Atex Etr Freq.lim.warning; New Spare Part - Danfoss VLT CDS 303 Operating Instructions Manual

Troubleshooting
ALARM 90, Feedback monitor
Check the connection to encoder/resolver option and
eventually replace the MCB 102 or MCB 103.
ALARM 91, Analog input 54 wrong settings
Switch S202 has to be set in position OFF (voltage input)
when a KTY sensor is connected to analog input terminal
54.
WARNING/ALARM 104, Mixing fan fault
The fan monitor checks that the fan is spinning at power-
up or whenever the mixing fan is turned on. If the fan is
not operating, then the fault is annunciated. The mixing-
fan fault can be configured as a warning or an alarm trip
by parameter 14-53 Fan Monitor.
Troubleshooting
Cycle power to the frequency converter to
7 7
determine if the warning/alarm returns.
WARNING 163, ATEX ETR cur.lim.warning
The frequency converter has run above the characteristic
curve for more than 50 s. The warning is activated at 83%
and de-activated at 65% of the permitted thermal
overload.
ALARM 164, ATEX ETR cur.lim.alarm
Operating above the characteristic curve for more than 60
s within a period of 600 s activates the alarm and the
frequency converter trips.
WARNING 165, ATEX ETR freq.lim.warning
The frequency converter is running more than 50 s below
the permitted minimum frequency (parameter 1-98 ATEX
ETR interpol. points freq. [0]).
ALARM 166, ATEX ETR freq.lim.alarm
The frequency converter has operated more than 60 s (in a
period of 600 s) below the permitted minimum frequency
(parameter 1-98 ATEX ETR interpol. points freq. [0]).
ALARM 246, Power card supply
This alarm is only for F Frame frequency converters. It is
equivalent to Alarm 46. 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 frequency
converter.
2 = right inverter module in F1 or F3 frequency
converter.
3 = right inverter module in F2 or F4 frequency
converter.
5 = rectifier module.
WARNING 250, New spare part
A component in the adjustable frequency drive has been
replaced. Reset the adjustable frequency drive for normal
operation.
160
®
VLT Compressor Drives CDS 302/CDS 303
WARNING 251, New typecode
The power card or other components have been replaced
and the type code changed. Reset to remove the warning
and resume normal operation.
Danfoss A/S © Rev. 2013-07-03 All rights reserved. MG34M422