Connecting Freqrol-A500, A500L Series - Mitsubishi Electric GT1685 Connection Manual

15.5.4 Connecting FREQROL-A500, A500L series


Communication settings
Make the communication settings of the inverter.
Be sure to perform the inverter reset after updating each parameter.
(1) Communication port and corresponding parameters
GOT connection destination
PU connector
FR-A5NR (Option unit)
(2) Communication settings of inverter
Set the following parameters using the PU (parameter unit). Do not change these parameters, even though they
can be monitored from the GOT. If they are changed, communication with the GOT is disabled.
Setting item
Communication station number
Communication speed
Stop bit length
Parity check presence/absence
Number of communication retries
Communication check time interval
Wait time setting
CRLF presence/ absence selection
Protocol selection
Operation mode selection
Link start mode selection
2
E PROM write selection
*1 Setting items are parameter names described in the manual of FREQROL-A500 and A500L series.
*2 Settings on the GOT can be changed.
When changing the settings on the GOT, be sure to change the parameters on the inverter to correspond with the GOT settings.
*3 Inverter default values (No need to change)
*4 Since the value has been set as a default, no setting is required when connecting to the PU connector on the inverter side.
*5 There is no Protocol selection setting on the inverter side.
*6 The setting is required on the inverter side when FR-A5NR is used.
Parameters corresponding to inverter
Pr.79, Pr.117 to Pr.124, Pr.342
Pr.79, Pr.331 to Pr.337, Pr.340 to Pr.342
Parameter No.
*1
PU connector
Pr.117
*2
Pr.118
*2
Pr.119
*2
Pr.120
Pr.121
Pr.122
Pr.123
Pr.124
*5
―
Pr.79
*6
―
Pr.342
15.5 FREQROL Series Inverter Side Settings
Set value
FR-A5NR
Pr.331 0 to 31
*4
Pr.332
192
Pr.333 10
Pr.334 1
Pr.335 9999
Pr.336 9999
Pr.337 0
*3
Pr.341
1
― ―
PU
1
connector
*3
FR-A5NR
0
Pr.340 1
*3
0
15. INVERTER CONNECTION
Contents of setting
15.5.14 Station number
setting
19200bps
Data length: 7bit
Stop bit length: 1bit
Odd
The inverter will not come to an
alarm stop.
Communication check
suspension
0ms
With CR, without LF
―
PU operation mode
External operation mode at
power on
Computer link operation
Written to RAM and EEPROM
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