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15. INVERTER CONNECTION
15.5 FREQROL Series Inverter Side Settings
15.5.2 Connecting FREQROL-E500 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-E500 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 There is no Protocol selection setting on the inverter side.
*5 The setting is required for Frequency setting command selection.
GOT connection
destination
Parameters corresponding to inverter
PU connector Pr.79, Pr.117 to Pr.124, Pr.146, Pr.342
Setting item
*1
Parameter No. Set value Contents of setting
Communication station number Pr.117 0 to 31
15.5.12 Station number
setting
Communication speed
*2
Pr.118
192
*3
19200bps
Stop bit length
*2
Pr.119 10
Data length: 7bit
Stop bit length: 1bit
Parity check presence/absence
*2
Pr.120 1 Odd
Number of communication retries Pr.121
9999
(65535)
The inverter will not come to an
alarm stop.
Communication check time interval Pr.122 9999
Communication check
suspension
Wait time setting Pr.123 0 0ms
CRLF presence/ absence selection Pr.124
1
*3
With CR, without LF
Protocol selection
*4
―― ―
Operation mode selection Pr.79
1
*3
PU operation mode
Communication startup mode selection
*4
―― ―
E
2
PROM write selection
Pr.342
0
*3
Written to RAM and EEPROM
Frequency setting command selection
*5
Pr.146 9999
Built-in frequency setting
potentiometer invalid