Specifications

Control Block Description ADDvantage-32 PLUS
4-126
4.74 UV PROTECT
The block can be used to try to prevent a shoot through condition on a low AC voltage. It
does this by disabling the regenerating bridge current limit in a low voltage condition.
FIGURE 4-74. UV PROTECT BLOCK
1. Inputs
POSI: Analog
NEGI: Analog
VAC: Analog
LOW: Analog
CEMF: Analog
2. Outputs
POSO: Analog
NEGO: Analog
3. Implementation
If VAC is greater than the LOW input, then POSO = POSI and NEGO = NEGI.
Otherwise a low line condition is present and the following occurs.