Mitsubishi Electric FR-A520-0.4K Instruction Manual page 172

Setting
Signal
Positive Negative
Name
logic logic

17 MC1

18 MC2

19 MC3
20 120 BOF
25 125 FAN
26 126 FIN
27 127 ORA
28 128 ORM
29 129 Y29
30 130 Y30
31 131 Y31
32 132 Y32
33 133 RY2
94 194 Y94
95 195 Y95
98 198 LF
99 199 ABC

9999
0 to 99:Positive logic
100 to 199:Negative logic
Note: 1. Under encoder feedback control (when the FR-A5AP option is fitted), 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 encoder feedback signal is output at or above the frequency specified for detection.
FU2, 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
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.
(Such alternation will not take place when the acceleration/deceleration time setting is "0s".)
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.
9. When making a power-on reset, the alarm output 2 signal "Y94" is turned off as soon as power is turned
off.
10. The alarm output 2 signal "Y94" can not be assigned to the extended assignment terminal of the option unit
(FR-A5AY, FR-A5AR, FR-A5NR).
11. When parameters are copied to the inverter without this signal, the changed settings of output terminal
function selection parameters (Pr. 190 to Pr. 195) become "9999 (no function)"
Function
Commercial power supply-
inverter switch-over MC1
Commercial power supply-
inverter switch-over MC2
Commercial power supply-
inverter switch-over MC3
Brake opening request
Fan fault output
Fin overheat pre-alarm
In-position
Orientation error
Overspeed detection
Forward running output
Reverse running output
Regeneration status output
Operation ready 2
Alarm output 2
Capacitor life alarm output
Minor fault output
Alarm output
No function
163
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Operation
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 encoder 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 the inverter's protective function is
activated to stop the output (major fault).
Continue outputting the signal during inverter reset and
stop outputting after reset is cancelled. (Note 9, 10, 11)
Refer to Pr. 503 and Pr. 504 (capacitor life alarm)
Output when a minor fault (fan fault or
communication error alarm) occurs.
Output when the inverter's protective function is
activated to stop the output (major fault).
Stops output when reset is on.

PARAMETERS
Related
parameter
Pr. 135 to
Pr. 139
Pr. 278 to Pr. 285
Pr. 244


Pr. 503, Pr. 504
Pr. 121, Pr. 244


key of the operation panel,
4