NORD Drivesystems BU0180 - Manual (Page 148)

SK 180E Manual for frequency inverters
148 Pre-series version BU 0180 GB-0914
7.3 Table of possible warning messages
Display
Warning
Text in the ParameterBox
Cause
Remedy
Group Details in
P700 [-02]
C001 1.0 Overtemp. inverter
“Inverter overtemperature“
(inverter heat sink) Warning from output stage module (static)
Reduce ambient temperature <50°C or <40°C (see also
Section 8 Technical data)
Check ventilation
C002 2.0 Overtemp. Motor PTC
“Overtemperature of motor
PTC“
(from thermistor) Warning from motor temperature sensor (triggering
threshold reached)
Reduce motor load
Increase motor speed
Use external motor fan
2.1 Overtemperature motor I²t
”I²t“ motor overtemperature
Only if I
2
t motor (P535) is
programmed.
Warning: I
2
t- motor monitoring (1.3 times the rated current
reached for the time period specified in (P535))
Reduce motor load
Increase motor speed
2.2 Overtemp. Brake R.ext.
“Overtemperature of external
brake resistor“
Overtemperature via digital
input (
P420 […])={13}
Warning: Temperature monitor has triggered (only Size 2)
Digital input is Low
C003 3.0 I²t overcurrent limit Warning: Converter I
2
t limit,
(e.g. output current > rated current for FI)
(1.3 times the rated inverter current reached for a period of
60s)
Continuous overload at inverter output
(Please also note P504)
3.1 Chopper overtemperature I
2
t Warning: I
2
t limit for brake chopper triggered (only Size II)
(1.3 times the value has been reached for a period of 60s)
(please also note P555, P556, P557)
Avoid overcurrent in brake resistance
3.5 Torque current limit Warning: Torque current limit reached (P112)
3.6 Current limit Warning: Current limit reached (P536)
C004 4.1 Overcurrent current
measurement
"Overcurrent from overcurrent
measurement" Warning: pulse switch off is active
The limit for activation of pulse switch off (P537) has been
reached (only possible if P112 and P536 are switched off)
FI is overloaded
Check motor data (P201 … P209)