MITSUBISHI ELECTRIC FR-S520 - Manual (Page 154)

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3
.1.2 To know the operating status at the occurrence of alarm
(Only when FR-PU04 is used)
When any alarm has occurred, the display automatically switches to the indication of
the corresponding protective function (error). By pressing the
MON key at this point
without resetting the inverter, the display shows the output frequency. In this way, it is
possible to know the running frequency at the occurrence of the alarm. It is also
possible to know the current in the same manner. After resetting, you can confirm the
definitions in "Alarm History". (For details, refer to the instruction manual of the
parameter unit (FR-PU04).)
3
.1.3 Correspondence between digital and actual characters
There are the following correspondences between the actual alphanumeric characters
and the digital characters displayed on the control panel:
Actual Display Actual Display Actual Display
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
I
J
L
M
N
O
P
T
U
V
r
-
S
o
3
.1.4 Resetting the inverter
The inverter can be reset by performing any of the following operations. Note that the
electronic overcurrent protection's internal heat calculation value and the number of
retries are cleared (erased) by resetting the inverter.
Operation 1:...... Using the control panel, press the
STOP
RESET key to reset the inverter.
(This may only be performed when the inverter protective function
(major failure) is activated.)
Operation 2:...... Cut (off) power once, then switch it on again.
Operation 3:...... Switch on the reset signal (RES).
(Assign this signal to any of Pr. 60 to Pr. 63.) (Refer to page 40, 88)