SJ200 Inverter
6.Inverter Parameter Setup - The inverter has several settings related to ModBus communications. The table below lists them together. The Required column indicates which parameters must be set properly to allow communications. You may need to refer to the host computer documentation in order to match some of its settings.
Func. | Name | Required |
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A001 | Frequency source setting | ✔ | 00 .. Keypad potentiometer |
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| 01 | .. Control terminal |
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| 02 | .. Function F001 setting |
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| 03 | .. ModBus network input |
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| 10 | .. Calculate function output |
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A002 | Run command source setting | ✔ | 01 .. Control terminal |
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| 02 | .. Run key on keypad, or |
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| 03 | .. ModBus network input |
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C071 | Communication speed selection | ✔ | 04 .. 4800 bps |
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| 05 | .. 9600 bps |
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| 06 | .. 19200 bps |
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C072 | Node allocation | ✔ | Network address, range is 1 to 32 |
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C074 | Communication parity selection | ✔ | 00 .. No parity |
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| 01 | .. Even parity |
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| 02 | .. Odd parity |
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C075 | Communication stop bit selection | ✔ | Range is 1 to 2 |
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C076 | Communication error select | — | 00 .. Trip (error code E60) |
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| 01 | .. Decelerate to a stop and trip |
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| (error code E60) |
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| 02 | .. Disable |
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| 03 | .. Free run stop (coasting) |
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| 04 | .. Decelerate to a stop |
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C077 | Communication error | — | Comm. watchdog timer period, |
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| range is 0.00 to 99.99 sec. |
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C078 | Communication wait time | ✔ | Time the inverter waits after receiv- |
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| ing a message before it transmits. |
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| Range is 0. to 1000. ms |
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NOTE: When you edit and store any of the parameters above, the inverter causes it to take effect immediately. ModBus transmission occurs only after you set the OPE/485 DIP switch to the “485” position and turn on the inverter. Note that parameters C071 to C078 cannot be changed via the network. To edit them, reconnect the inverter keypad (or other digital operator) and edit the parameters.