Nidec Unidrive M200 User Manual page 137

Safety Product Mechanical
information information installation
Trip
It.br
Braking resistor overload timed out (I
The It.br trip indicates that braking resistor overload has timed out. The value in Braking Resistor Thermal Accumulator
(10.039) is calculated using Braking Resistor Rated Power (10.030), Braking Resistor Thermal Time Constant (10.031) and
Braking Resistor Resistance (10.061). The It.br trip is initiated when the Braking Resistor Thermal Accumulator (10.039)
reaches 100 %.
Recommended actions:
19
• Ensure the values entered in Pr 10.030, Pr 10.031 and Pr 10.061 are correct
• Check resistor value and power rating
• If an external thermal protection device is being used and the braking resistor software overload protection is not
required, set Pr 10.030, Pr 10.031 or Pr 10.061 to 0 to disable the trip.
LF.Er Communication has been lost / errors detected between power, control and rectifier modules
This trip is initiated if there is no communications between power, control or the rectifier module or if excessive
communication errors have been detected. The reason for the trip can be identified by the sub-trip number.
Control system
90
Control system
Power system
Recommended actions:
• Hardware fault - contact the supplier of the drive.
no.PS No power board
No communication between the power and control boards.
236 Recommended actions:
• Hardware fault - contact the supplier of the drive.
O.Ld1 Digital output overload
This trip indicates that the total current drawn from the AI Adaptor 24 V or from the digital output has exceeded the limit.
Sub-trip
26
Recommended actions:
• Check total loads on digital outputs and 24 V
• Check control wiring is correct
• Check output wiring is undamaged
O.SPd Motor frequency has exceeded the over frequency threshold
In open-loop mode, if the Post-ramp Reference (02.001) exceeds the threshold set in the Over Frequency Threshold
(03.008) in either direction, an O.SPd trip is produced. In RFC-A mode, if the Estimated Frequency (03.002) exceeds the
Over Frequency Threshold in Pr 03.008 in either direction, an O.SPd trip is produced. If Pr 3.008 is set to 0.00 the threshold
is then equal to 1.2 x the value set in Pr 1.006.
7
Recommended actions:
• Reduce the Frequency Controller Proportional Gain (03.010) to reduce the frequency overshoot (RFC-A mode only)
• Check that a mechanical load is not driving motor.
• Reduce Current Controller Ki Gain (04.014).
Unidrive M200 / M201 Control User Guide
Issue Number: 2
Electrical Getting Basic
installation started parameters
Source xx
00
00
01
1 Digital output or 24 V supply load on control terminal is too high.
2 AI Adaptor 24 V load is too high
Running the NV Media
Optimization
motor
Diagnosis
2
t)
y zz
No communications between the control system and the
0 01
power system.
Excessive communication errors between the control
0 02
system and power system.
Excessive communications errors detected by the rectifier
1 00
module.
Reason
Onboard Advanced
Diagnostics
Card PLC parameters
Description
UL Listing
137