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WARNING/ALARM 17, Control word timeout:
There is no communication to the frequency converter.
The warning will only be active when par. 8-04
Control Timeout Func-
tion
is NOT set to
OFF
.
If par. 8-04
Control Timeout Function
is set to
Stop
and
Trip
, a warning
appears and the frequency converter ramps down to zero speed, while
giving an alarm.
par. 8-03
Control Timeout Time
could possibly be increased.
WARNING 23, Internal fans:
External fans have failed due to defect hardware or fans not mounted.
WARNING 24, External fan fault:
The fan warning function is an extra protection function that checks if the
fan is running / mounted. The fan warning can be disabled in
par. 14-53
Fan Monitor
, [0] Disabled.
WARNING 25, Brake resistor short-circuited:
The brake resistor is monitored during operation. If it short-circuits, the
brake function is disconnected and the warning appears. The frequency
converter still works, but without the brake function. Turn off the fre-
quency converter and replace the brake resistor (see par. 2-15
Brake
Check
).
ALARM/WARNING 26, Brake resistor power limit:
The power transmitted to the brake resistor is calculated as a percentage,
as a mean value over the last 120 s, on the basis of the resistance value
of the brake resistor (par. 2-11
Brake Resistor (ohm)
) and the intermedi-
ate circuit voltage. The warning is active when the dissipated braking
power is higher than 90%. If
Trip
[2] has been selected in par. 2-13
Brake
Power Monitoring
, the frequency converter cuts out and issues this alarm,
when the dissipated braking power is higher than 100%.
WARNING/ALARM 27, Brake chopper fault:
The brake transistor is monitored during operation and if it short-circuits,
the brake function disconnects and the warning comes up. The frequency
converter is still able to run, but since the brake transistor has short-
circuited, substantial power is transmitted to the brake resistor, even if it
is inactive.
Turn off the frequency converter and remove the brake resistor.
Warning: There is a risk of substantial power being
transmitted to the brake resistor if the brake transistor
is short-circuited.
ALARM/WARNING 28, Brake check failed:
Brake resistor fault: the brake resistor is not connected/working.
WARNING/ALARM 29, Drive over temperature:
If the enclosure isIP00 or IP20/Nema1 the cut-out temperature of the
heat-sink is 90
o
C. If IP54 is used, the cut-out temperature is 80
o
C.
The fault could be:
-
Ambient temperature too high
-
Too long motor cable
ALARM 30, Motor phase U missing:
Motor phase U between the frequency converter and the motor is miss-
ing.
Turn off the frequency converter and check motor phase U.
9 Troubleshooting
Automation VT Drive FC322
Instruction Manual
160
MG.20.U1.22
9
Содержание FC322 Series
Страница 6: ...2 Safety Automation VT Drive FC322 Instruction Manual 6 MG 20 U1 22 2 ...
Страница 14: ...4 Mechanical Installation Automation VT Drive FC322 Instruction Manual 14 MG 20 U1 22 4 ...
Страница 103: ...Automation VT Drive FC322 Instruction Manual 8 How to Programme the Frequency Converter MG 20 U1 22 103 8 ...
Страница 154: ...9 Troubleshooting Automation VT Drive FC322 Instruction Manual 154 MG 20 U1 22 9 ...
Страница 163: ...10 Specifications Automation VT Drive FC322 Instruction Manual 10 Specifications MG 20 U1 22 163 10 ...