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Alarm Code Output; Resetting The Inverter - Mitsubishi Electric FR-A520-0.4K -55K Instruction Manual

Transistorized inverter, high function & low acoustic noise.
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5.1.3 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
Output Terminal Signal On-Off
Display
SU
(FR-DU04)
E.OC1
0
E.OC2
0
E.OC3
0
E.OV1
E.OV2
0
E.OV3
E.THM
0
E.THT
0
E.IPF
0
E.UVT
1
E.FIN
1
E. BE
1
E. GF
1
E.OHT
1
E.OLT
1
E.OPT
1
E.OP1 to E.OP3
1
E. PE
E.PUE
E.RET
E.LF
1
E.CPU
E.E6
E.E7
(Note) 0: Output transistor OFF, 1: Output transistor ON (common terminal SE)

5.1.4 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 operation panel (FR-DU04), press the [RESET] key to reset the inverter.
Operation 2: Switch power off once, then switch it on again.
Operation 3: Switch on the reset signal (RES).
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Alarm Code
IPF
OL
FU
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
0
1
1
1
The alarm output assumes that Pr. 195 setting is "99" (factory setting).
178
PROTECTIVE FUNCTIONS
Alarm Output (across B-C)
1
2
Provided (Open)
3
4
Provided (Open)
5
Provided (Open)
6
7
Provided (Open)
8
Provided (Open)
9
Provided (Open)
A
Provided (Open)
B
Provided (Open)
C
Provided (Open)
Not provided (Provided when OLT
D
is displayed) (Open)
E
Provided (Open)
E
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)
F
Provided (Open)
Provided (Open)
Provided (Open)
Provided (Open)

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