Watson-Marlow qdos 20, Инструкция по эксплуатации

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13.3.3 Relay module PCB layout
Module variants:
l
Universal = 2 terminal blocks, 2 relays with 2 output options
l
Un = 4 terminal blocks, 4 relays with 4 output options
The Un PCB layout is illustrated by the image below
Refer to this diagram for terminal connector naming and location.
NOTE32
On DC versions of the pump the DC supply 0V and input and output control ground are not
galvanically isolated. The installer should check if external signal isolation is required.
13.3.4 Relay module terminal connectors
General Alarm output (J2)
RLY1
Connect the output device to the C (common) terminal of the relay connector and
either the N/C (normally closed) or N/O (normally open) terminal as required.
This relay coil is energised when the pump has an alarm condition.
Note: Alarm conditions are generated by system errors. This alarm will not be
operated for analog signal errors.
3. N/C
2. C
1. N/O
3
2
1
13 INSTALLATION: PART 4 (CONTROL CONNECTIONS AND WIRING) 93