Installation, Operating & Maintenance Instructions
Series 650 DN 100-250 (I.D. 4“ - 10”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email
www.vatvalve.com
271149EA
2007-06-12
26/77
3.6 Setup
procedure
To enable the valve cluster for pressure control setup steps 1 to 6 must be performed.
In case position control is required only it’s sufficient to perform steps 1 to 4.
Setup step
Description
Valve
1
Power up
Turn on ex 24VDC power supply for all valves
(and external
±
15 VDC for sensor power supply on
master valve if required). Refer to chapter «Behavior
during power up» for details.
Master & Slave
2
Cluster address
configuration
Set the cluster address for each individual valve
(Master and Slave(s)). This must be done via the
service port on each valve. Refer to chapter «Cluster
address configuration» for details
Master & Slave
3
Interface
configuration
RS485 parameters and digital inputs for valve may be
changed from the default values.
Refer to chapter «RS485 interface» for details.
Master
4
Valve and sensor
configuration
Basic configurations of the Master valve must be
adapted according to application needs. Refer to
chapter «Valve and sensor configuration» for details.
Master &
Slave (valve
configuration only)
5
ZERO
Compensation of the sensor offset voltage.
Refer to chapter «ZERO» for details.
Master
6
LEARN
Determination of the vacuum system characteristic to
accommodate the PID controller. Refer to chapter
«LEARN» for details.
Note: Without LEARN the valve is not able to run
pressure control
Master
3.6.1 Cluster
address
configuration
When setting up the valve cluster solution, each valve needs a unique cluster address.
This address must be configured on each valve prior to operation via the service port by using the graphical interface
(SETUP –> CLUSTER) or the Terminal function of the Control View software or Control Performance Analyzer software.
The used addresses must be in a consecutive order.
Further the Master valve needs the information about the total number of valves (including itself) connected to the valve
cluster.
Note: Prior to sending the address command, set the valve to LOCAL operation.