Other Help Function - Mitsubishi Electric Freqrol-A100 Instruction Manual

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4 M.Curr.High
(Inverter output current value i s larger
than normal)
First, the running frequency, out-
put current and output voltage of
the inverter are displayed. Press
I
the [SHIFT] key to display the as-
9
sumed cause of large output cur-
rent.
Is the motor a special motor other
than the general-purpose 3-phase
induction motor? If so, reduce the
torque boost set value.
Related parameters: Pr. 0, 38, 46
I
Low T ~ Q Is the motora constant-torque mo-
tor (motor for inverter)? If so, re-
duce the torque boost set value.
A
Related parameters: Pr. 0, 38, 4 6
Since the torque boost set value
may be inappropriate, check the
following relevant parameters:
Related parameters: Pr. 0, 38, 4 6
Since the
VIF
pattern setting may
be inappropriate, check the fol-
lowing relevant parameters: Re-
lated parameters: Pr. 3, 14, 19, 4 7
n l The load mav be too heavv. An
open phase h a y have occurred
between the inverter and motor.
Note: If the fault could not be identified by
the above operation
If the cause of the fault could not be
found in the inverter, the current runn-
ing frequency, output current and out-
put voltage are displayed on the screen.
Press the [SHIFT] key to display the
relevant assumed cause.
3.2.4
Other Help Function
Graphic function
press the [HELP] key on the parameter setting screen to display the data of the corresponding
parameter graphically.
Operation procedure (Example: Pr. 3 "starting frequency")
I
1
1) Read the required parameter in accordance with page 51 or
page 62.
4
2) Press the [HELP] key.
.....
The data of the parameter is dis-
played graphically.
3) Press the [CLEAR] key.
....
The display returns to the previ-
ous screen.
Display