Binary input threshold voltage - Arc protection - Back-up protection - Feeder protection - Motor protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - ANSI - IEC - 01.07.2024

REX610 Technical Manual

The parameter Input threshold voltage is used to set the threshold level of the binary inputs. Input pickup voltage determines the voltage level for the activation of the inputs. Input drop-off voltage determines the voltage level for the deactivation of the inputs. The threshold set is applicable for the entire module. Binary inputs are configurable to both AC and DC voltage type.

Table 1. Input threshold voltage parameters

Parameter

Values

Default

Slot specific threshold

1=True

0=False

0=False

Input pickup voltage

DC voltage

18…176 V

18 V

AC voltage

38...168 V

38 V

Input drop off voltage

DC voltage

16…176 V

16 V

AC voltage

34...168 V

34 V

Note: Pickup voltage threshold should be always greater than the drop off voltage.
Note: For AC voltages it is recommended to set a 4 V difference between the pickup and dropoff voltage.