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15. INVERTER CONNECTION
15.5 FREQROL Series Inverter Side Settings
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
(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.
*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.
GOT connection destination Parameters corresponding to inverter
PU connector Pr.79, Pr.117 to Pr.124, Pr.342
FR-A5NR (Option unit) Pr.79, Pr.331 to Pr.337, Pr.340 to Pr.342
Setting item
*1
Parameter No.
Set value Contents of setting
PU connector FR-A5NR
Communication station number Pr.117 Pr.331 0 to 31
15.5.12 Station number
setting
Communication speed
*2
Pr.118 Pr.332
192
*4
19200bps
Stop bit length
*2
Pr.119 Pr.333 10
Data length: 7bit
Stop bit length: 1bit
Parity check presence/absence
*2
Pr.120 Pr.334 1 Odd
Number of communication retries Pr.121 Pr.335 9999
The inverter will not come to an
alarm stop.
Communication check time interval Pr.122 Pr.336 9999
Communication check
suspension
Wait time setting Pr.123 Pr.337 0 0ms
CRLF presence/ absence selection Pr.124 Pr.341
1
*3
With CR, without LF
Protocol selection
*5
―― ― ―
Operation mode selection Pr.79
PU
connector
1 PU operation mode
FR-A5NR
0
*3
External operation mode at
power on
Link start mode selection
*6
― Pr.340 1 Computer link operation
E
2
PROM write selection
Pr.342
0
*3
Written to RAM and EEPROM