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 | Parameters corresponding to inverter | |
destination | ||
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PU connector | Pr.79, Pr.117 to Pr.124, Pr.146, Pr.342 | |
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(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*1 | Parameter No. | Set value |
| Contents of setting |
Communication station number | Pr.117 | 0 to 31 |
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Communication speed*2 | Pr.118 | 192*3 |
| 19200bps |
Stop bit length*2 | Pr.119 | 10 |
| Data length: 7bit |
| Stop bit length: 1bit | |||
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Parity check presence/absence*2 | Pr.120 | 1 |
| Odd |
Number of communication retries | Pr.121 | 9999 | The inverter will not come to an | |
(65535) |
| alarm stop. | ||
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Communication check time interval | Pr.122 | 9999 |
| Communication check |
| suspension | |||
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Wait time setting | Pr.123 | 0 |
| 0ms |
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CRLF presence/ absence selection | Pr.124 | 1*3 |
| With CR, without LF |
Protocol selection*4 | ― | ― |
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Operation mode selection | Pr.79 | 1*3 |
| PU operation mode |
Communication startup mode selection*4 | ― | ― |
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E2PROM write selection | Pr.342 | 0*3 |
| Written to RAM and EEPROM |
Frequency setting command selection*5 | Pr.146 | 9999 |
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| potentiometer invalid | |||
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*1 Setting items are parameter names described in the manual of
*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.
15 - 32 | 15. INVERTER CONNECTION |
| 15.5 FREQROL Series Inverter Side Settings |