VAT 651 Series - Digital Outputs

INSTALLATION Series
651
36/99 Edition 2014-07-10 605451EC
4.4.9 Digital outputs
Pin
Function
Signal
type
Description
8
VALVE
OPEN
or
SERVICE
REQUEST
Digital
output
1)
This output is active in all operation modes and indicates either that
the valve is open or that a service is requested.
A service request is indicated when the valve requires cleaning due
to contamination.
Configuration of the functionality of this output can be done in local
operation via service port.
By default the output indicates open
9
VALVE
CLOSED
or
SERVICE
REQUEST
Digital
output
1)
This output is active in all operation modes and indicates either that
the valve is close or that a service is requested.
A service request is indicated when the valve requires cleaning due
to contamination.
Configuration of the functionality of this output can be done in local
operation via service port.
By default the output indicates close
22
VALVE
STATUS
Digital
output
1)
The meaning of this output depends on the operation mode.
e.g.
LEARN:
LEARN is not completed yet.
PRESSURE CONTROL:
Actual pressure is out of ±2% range of SETPOINT
POSTION CONTROL:
Actual position is out of ±0.1% range of SETPOINT
21
READY
Digital
output
1)
This signal indicates that the valve is ready for remote operation.
If this signal is not active the valve is in one of the following modes:
• Synchronization during power up
• Local operation via service port
• Safety mode. Refer to «Safety mode» for details.
20
COMMON
Digital
common
Common for all digital outputs.
1) Refer to «Function and wiring» for details about output circuit.