Allen-Bradley 931S-V1R1D-MC1R Notice D'utilisation page 4

2. Function description
2.1 The 3 Way Monitoring Isolator 931S-V1R1D-MC1R monitors
24Vac/dc to 260Vac/dc voltage in single-phase power supply
systems. This voltage range can be divided into 4 individual ranges.
Power is supplied via the monitoring input. A relay with changeover
contact is used for the switching output. Fundamentally, the device
works on a closed-circuit current principle; that means that the
relay picks up by status OK, and drops out when an alarm is
signalled.The switching point is set via a potentiometer (located
under the front plastic cover).
Functions:
- High Trip:
- Low Trip:
- Memory on:
- Memory off:
- Hysteresis, small: Pickup and release delay of 5V/8V
- Hysteresis, large: Pickup and release delay of 10V/16V
- AC voltage:
- DC voltage:
2
The relay switches when the set operating
point is exceeded
The relay switches by underflow of the set
operating point
The output alarm status is retained; it can
be reset via an internal pushbutton or
external reset input
The alarm status is not stored
depends on the range set
depends on the range set
AC voltage measurement of the input
signal
DC voltage measurement of the input
signal