Invertek OPTIDRIVE Coolvert - Diagnostics; Troubleshooting Drive Trips

40 | Optidrive CoolVert User Guide | Version 1.00 www.invertekdrives.com
5
Diagnostics
5. Diagnostics
5.1. Trips
Fault
Code
No. Description Suggested Remedy
o-Ft
00 No Fault or No Trip No fault in trip log – no problem with the drive
-
03 Instantaneous over current High current from either – short-circuit on the drive output / acceleration ramps too short
/ incorrect motor data
.t-t
04 Motor Thermal Overload (I2t) Drive has been delivering more than the configured motor rated current for a period of
time – check the operating point of the compressor
S-t
05 Power stage trip Hardware fault, contact the supplier of the drive
-ot
06 Over voltage on DC bus DC Bus Overvoltage from either - the supply voltage is too high, a spike in the supply
voltage, motor instability, try setting P1-05 = 3
-ot
07 Under voltage on DC bus Usually caused by the supply voltage dropping too low – check connections and voltage
at the drive terminals
-t
08 Heatsink over temperature Check the ambient temperature, check that the ventilation is not restricted, check the
cooling system for the coldplate version
-t
09 Under temperature Drive heatsink temperature is too low
-F
10 Factory Default parameters have
been loaded
Warning to advise that the drive has been returned to factory defaults
S-S
12 Optibus comms loss Loss of communications between drive and remote keypad or PC tools
Ft-
13 DC bus ripple too high Check for supply phase imbalance or phase loss
-SS
14 Input phase loss trip Input phase loss trip – similar to FLt.dc above
 -
15 Instantaneous over current on
drive output
Hardware overcurrent on drive output – similar to O-I trip above
t-Ft
16 Faulty thermistor on heatsink If the drive heatsink temperature is within limits, contact the supplier of the drive
t-F
17 Internal memory fault (IO) If not coinciding with a firmware upgrade procedure, contact the supplier of the drive
- F
18 4-20mA Signal Lost Analogue input configured for 4-20mA but less than 3mA detected on drive terminals
t-
19 Internal memory fault (DSP) If not coinciding with a firmware upgrade procedure, contact the supplier of the drive
-F
20 User Default Parameters Loaded User Default Parameters Loaded
F-t
21 Motor PTC thermistor trip Drive configured to monitor motor temperature through the PTC and resistance increases
above 2.5k
F-F
22 Cooling Fan Fault Drive cooling fan not running at demanded speed – check for any blockages in the
cooling fan
-t
23 Environmental temperature too high Check ambient temperature and ventilation system
t-F
26 Drive output fault Check for wiring faults, loose connections or badly terminated cables between the drive
and the motor
Sto-F
29 Safety input circuit error Can happen if an external 24V supply is used and it powers-up slowly – contact the
supplier of the drive in all other events
tF-
40 Measured motor stator resistance
varies between phases
Check the motor wiring, disconnect the drive and measure the phase to phase resistance
from the motor cable
tF-
41 Measured motor stator resistance
is too large
Check the motor wiring, disconnect the drive and measure the phase to phase resistance
from the motor cable and refer to motor datasheet
tF-
42 Measured motor inductance is
too low
Check the motor wiring
tF-
43 Measured motor inductance is
too large
Check the motor wiring
tF-
44 Measured motor parameters are
not convergent
Check the motor wiring
t-
49 Motor output phase loss Check the motor wiring
S-F
50 Modbus comms loss fault Check the Modbus wiring, ensure that the 0V common is used, ensure that the
communication wiring is kept away from any power wiring