How do you configure the ATV320 drive for a bipolar +10/-10vdc speed control?
Resolution:
To configure AI2 for a ±10 VDC input, use the following programming path:
CONF → FULL → I/O Menu → AI2 Configuration
Set the parameters as follows:
- AI2t [AI2 Type]: Set to [Voltage +/-] (n10U) for a bidirectional ±10 VDC input.
- UIL2 [AI2 Min Value]: Set to 0 V
- UIH2 [AI2 Max Value]: Set to 10.0 V
Although the AI2 scaling parameters are set from 0 to 10 V, selecting n10U allows AI2 to accept a -10 V to +10 VDC signal.
With this configuration:
- 0 to -10 VDC = Reverse (REV)
- 0 to +10 VDC = Forward (FWD)
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