Nidec Unidrive M200 User Manual page 146

Safety Product Mechanical
information information installation
Trip
Sto No Safe Torque Off board fitted
Internal STO board not fitted correctly
234 Recommended actions:
Hardware fault – Contact the supplier of the drive
Motor thermistor over-temperature
th
The th trip indicates that the motor thermistor connected to terminal 14 (digital input 5) on the control connections has
indicated a motor over temperature. If Digital Input 5 Mode (08.035) is 2 then a th trip is initiated if the feedback value is
higher than Thermistor Trip Threshold (07.048).
24 Recommended actions:
• Check threshold level (Pr 07.048)
• Check motor temperature
• Check thermistor continuity
th.br Brake resistor over temperature
The th.br trip is initiated if the hardware based braking resistor thermal monitoring is connected and the resistor overheats.
If the braking resistor is not used, then this trip must be disabled with bit 3 of Action On Trip Detection (10.037) to prevent
this trip.
10 Recommended actions:
• Check brake resistor wiring
• Check braking resistor value is greater than or equal to the minimum resistance value
• Check braking resistor insulation
tH.Fb Internal thermistor has failed
The tH.Fb trip indicates that an internal thermistor has failed in the drive (i.e. open circuit or short circuit). The thermistor
location can be identified by the sub-trip number.
Source
Power system
218
Power system
Recommended actions:
• Hardware fault – Contact the supplier of the drive
thS Motor thermistor short circuit
The thS trip indicates that the motor thermistor connected to terminal 14 (digital input 5) on the control connections, is short
circuit or low impedance (<50 ).
25 Recommended actions:
• Check thermistor continuity
• Replace motor / motor thermistor
tun.S Autotune test stopped before completion
The drive was prevented from completing an autotune test, because either the drive enable or the drive run were removed.
Recommended actions:
18
• Check the drive enable signal (Terminal 11) was active during the autotune
• Check the run command was active in digital input 3 or 4 state (Pr 08.003 or Pr 08.004) during the autotune.
tun.1 Required speed could not be reached
The drive has tripped during an autotune. The cause of the trip can be identified from the sub-trip number.
Sub-trip
11
Recommended actions:
• Ensure the motor is free to turn i.e. mechanical brake is released
• Ensure Mechanical Load Test Level (05.021) is set correctly
tun.3 Measured inertia has exceeded the parameter range (RFC-A mode only)
The drive has tripped during a rotating autotune or mechanical load measurement test. The cause of the trip can be
identified from the associated sub-trip number.
Sub-trip
13
Recommended actions:
• Check motor cable wiring is correct
146
Electrical Getting Basic
installation started parameters
xx
01
01
2 The motor did not reach the required speed during rotating autotune or mechanical load measurement
1 Measured inertia has exceeded the parameter range during a mechanical load measurement
3 The mechanical load test has been unable to identify the motor inertia
Running the NV Media
Optimization
motor Card
Diagnosis
y
0 Thermistor location defined by zz
1 Thermistor location defined by zz in the rectifier
Reason
Reason
Onboard Advanced
Diagnostics
PLC parameters
zz
Unidrive M200 / M201 Control User Guide
Issue Number: 2
UL Listing