Alarm Code Output; Resetting The Inverter - Mitsubishi Electric FR-A520-0.4K Instruction Manual

5.1.4

Alarm code output

By setting Pr. 76 "alarm code output selection", an alarm definition can be output as a 4-bit digital signal. This
signal is output from the open collector output terminals equipped as standard on the inverter.
Correlations between alarm definitions and alarm codes are as follows.
Operation Panel Display
(FR-DU04)
E.OC1
E.OC2
E.OC3
E.OV1
E.OV2
E.OV3
E.THM
E.THT
E.IPF
E.UVT
E.FIN
E. BE
E. GF
E.OHT
E.OLT
E.OPT
E.OP1 to E.OP3
E. PE
E.PUE
E.RET
E.LF
E.CPU
E. 1 to E. 3
E. 6
E. 7
E.ECT
E.OSD
5.1.5

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.
It takes about 1s from when reset is canceled until operation is restored.
Operation 1: Using the operation panel (FR-DU04), press the
Operation 2: Switch power off once, then switch it on again.
Operation 3: Switch on the reset signal (RES).
Output Terminal Signal On-Off
SU IPF OL
0 0 0
0 0 1
0 0 1
0 1 0
0 1 0
0 1 1
0 1 1
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
1 1 1
1 1 1
(Note) 0: Output transistor OFF, 1: Output transistor ON (common terminal SE)
The alarm output assumes that Pr. 195 setting is "99" (factory setting).
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PROTECTIVE FUNCTIONS
Alarm Code
FU
1 1
0 2
1 3
0 4
1 5
0 6
1 7
0 8
1 9
0 A
1 B
0 C
1 D
0 E
0 E
1 F
STOP
key to reset the inverter.
RESET
206
Alarm Output (across B-C)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Not provided (Closed) (Provided
when OLT is displayed (Open))
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)