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Mitsubishi Electric FR-A520-0.4K -55K Instruction Manual Page 158

Transistorized inverter, high function & low acoustic noise.
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Setting
Signal
Positive
Negative
Name
logic
logic
Commercial power supply-

17
MC1
inverter switch-over MC1
Commercial power supply-

18
MC2
inverter switch-over MC2
Commercial power supply-

19
MC3
inverter switch-over MC3
20
120
BOF
Brake opening request
25
125
FAN
Fan fault output
26
126
FIN
Fin overheat pre-alarm
127
ORA
In-position
28
128
ORM
Orientation error
29
129
Y29
Overspeed detection
30
130
Y30
Forward running output
31
131
Y31
Reverse running output
32
132
Y32
Regeneration status output
33
133
RY2
Operation ready 2
98
198
LF
Minor fault output
99
199
ABC
Alarm output

9999
No function
0 to 99: Positive logic
100 to 199: Negative logic
Note: 1. Under PLG feedback control (when the FR-A5AP option is loaded), the operations of the up-to-
frequency SU and frequency detection FU, FU2, FU3 are as follows:
SU, FU: The actual speed (frequency) provided by the PLG feedback signal is output at or above
the frequency specified for detection.
FU, FU3: The inverter output frequency is output at or above the frequency specified for
detection.
2. When the frequency setting is varied with the analog signal or the [UP/DOWN] key of the
operation panel, note that the output of the SU (up-to-frequency) signal may alternate between
ON and OFF due to that varying speed and the timing of the varying speed dependent on the
acceleration/deceleration time setting.
3. This signal is output when "5" is set in Pr. 79 "operation mode selection" and the external
operation mode is selected (the inverter goes into the programmed mode).
4. The same function may be set to more than one terminal.
5. When the function is activated, the terminal conducts with the settings of 0 to 99 and does not
conduct with the settings of 100 to 199.
6. Pr. 190 to Pr. 195 do not function if the values set are other than the above.
7. When Pr. 76 = 1 or 3, the output signals of the SU, IPF, OL and FU output terminals conform to
Pr. 76. When an inverter alarm occurs, the signal outputs are switched over to alarm code
outputs.
8. The output assignment of the RUN terminal and alarm output relay conforms to the above setting
independently of Pr. 76.
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Function
Refer to Pr. 135 to Pr.139 (commercial power
supply-inverter switch-over).
Refer to Pr. 278 to Pr. 285 (brake sequence
functions).
Output when a fan fault occurs.
Output when the heat sink temperature reaches
about 85% of the fin overheat protection
temperature.
When orientation is valid (only when FR-A5AP
option is loaded)
For PLG feedback control, vector control
(only when the FR-A5AP option is loaded)
For vector control
(only when the FR-A5AP option is loaded)
Output when a minor fault occurs. (Refer to page
179.)
Output when the inverter's protective function is
activated to stop the output (major fault).
145
PARAMETERS
Related
Operation
parameter
Pr. 135 to
Pr. 139
Pr. 278 to
Pr. 285






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