Mitsubishi Electric FR-PU07 Instruction Manual page 71

4 M.Curr.High (Inverter output current is larger than normal)
First, the running frequency, output current
INV.Output
50.00Hz and output voltage of the inverter are display-
ed. Press the SHIFT-key to display the estima-
10A 182.4V
ted cause of large output current.
<SHIFT>
The motor used may be a special motor other
Low Impedance
Motor? than the general-purpose 3-phase induction
motor. If so, reduce the torque boost setting.
Reduce TrqBst
Related parameters: Pr. 0, 46, 112.
Pr.0,46,112
The motor used may be a constant-torque mo-
Low Trq
Motor? tor (motor for inverter). If so, reduce the torque
boost setting. Related parameters: Pr. 0, 46,
Reduce TrqBst
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 the SHIFT-key to display the estimated cause related.
Since the torque boost setting may be inappro-
Trq. Bst
priate, check the following relevant parame-
Setting Err?
ters: Related parameters: Pr. 0, 46, 112.
See Pr. 0, 46,
112
V/F Setting Since the V/F pattern setting may be inappro-
Error? priate, check the following relevant parame-
ters: Related parameters: Pr. 3, 14, 19, 47,
See Pr. 3, 14,
113.
19, 47, 113
The load may be too heavy. An open phase
Load Too Big? may have occurred between the inverter and
motor.
OutPut
Phase Loss?
INV.Output
0.00A
<SHIFT>
FUNCTION MENU
50.00Hz
182.8V
61
3