Mitsubishi Electric FR-PU07 Instruction Manual page 82

4) M.Curr.High
(Inverter output current is larger than normal)
First, the running frequency, output current and
INV.Output
output voltage of the inverter are displayed.
60.00Hz
10A 182.4V
Press
<SHIFT>
large output current.
The motor in use may be a special motor other
Low Impedance
Motor? than the general-purpose 3-phase induction
Reduce TrqBst
motor. If so, reduce the torque boost setting.
Pr.0,46,112
Related parameters: Pr. 0, 46, 112
The motor in use may be a constant-torque motor
Low Trq
Motor? (motor for inverter). If so, reduce the torque boost
Reduce TrqBst
setting. Related parameters: Pr. 0, 46, 112
Pr.0,46,112
REMARKS
<When the fault could not be identified>
When the cause of the fault is not specified even after performing the operation mentioned
above, the current running frequency, output current and output voltage at the point are
displayed on the screen.
Press to display the estimated cause related.
to display the estimated cause of
Operation Procedures for Functions
Since the torque boost setting may be
Trq. Bst
Setting Err? inappropriate, check the following relevant
See Pr. 0, 46,
parameters: Related parameters: Pr. 0, 46, 112
112
Since the V/F pattern setting may be
V/F Setting
Error? inappropriate, check the following relevant
See Pr. 3, 14,
parameters: Related parameters: Pr. 3, 14, 19,
19, 47, 113
47, 113
The load may be too heavy. An open phase may
Load Too Big? have occurred between the inverter and motor.
OutPut
Phase Loss?
3
INV.Output
60.00Hz
0.00A 182.8V
<SHIFT>
73