Compatible Devices
SEW MOVIDRIVE A
SEW MOVITRAC
SEW MOVIDRIVE B [g3-sew | Word]
Verified Device
SEW MOVIDRIVE MDX60A
SEW MOVIDRIVE MDX60B [g3-sew | Word]
Accessing Data
Parameter values are returned in the same engineering units as the SEW drive supplies. Values written must also match the expected engineering units. [g3-sew | Word]
- Select the parameter and service from the list
- IPOS Variables use Data Item H (H0–H511)
- Index selections (8300–25000) use Data Item I
- Process data uses Data Items:
- PD (output data)
- SPD (send process data) [g3-sew | Word]
Service Codes
Available services:
- Read/Write
- Read/Write Volatile
Warning:
Use Read/Write sparingly — the drive memory supports a limited number of write cycles. [g3-sew | Word]
Process Data Access
For correct operation:
- Parameter 100 (Setpoint Source) → RS485
- Parameter 101 (Control Signal Source) → RS485
Key notes:
- Process output data initializes to 0 at power-up
- Assign process output data to a write-enabled tag
- Use SPD to define:
- Data length
- Transmission type
- Enable cyclical transmission for timeout monitoring
- Always clear (set to 0) SPD after each non-zero write [g3-sew | Word]
Process data can be read from:
- Parameters 094–096 (output data)
- Parameters 097–099 (input data) [g3-sew | Word]
Special Parameter: Latest Exception Code (9999)
Parameter 9999 stores the most recent communication exception:
- Upper 16 bits → Index
- Lower 16 bits → Exception code [g3-sew | Word]
Exception Codes
| Code | Meaning |
|---|---|
| 00 | No error |
| 10 | Invalid parameter index |
| 11 | Function/parameter not implemented |
| 12 | Read access only |
| 13 | Parameter lock active |
| 14 | Factory setting active |
| 15 | Parameter too large |
| 16 | Parameter too small |
| 17 | Required option card missing |
| 18 | System software error |
| 19 | RS-485 process interface only |
| 1A | RS-485 diagnostic interface only |
| 1B | Protected parameter |
| 1C | Controller inhibit required |
| 1D | Incorrect parameter value |
| 1E | Factory setting activated |
| 1F | Parameter not saved in EEPROM |
| 20 | Cannot change with output stage enabled |
| 0505 | Parameter configuration error |
Example:
21140015
Indicates parameter index 2114 with error code 15. [g3-sew | Word]
Cable Information
| G3 RS485 Port | SEW Eurodrive |
|---|---|
| Pin 1 | RS-485 + |
| Pin 2 | RS-485 – |
| Pin 6 | GND |
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