Installation, Operating & Maintenance Instructions
Series 612 DN 25 (I.D. 1”), Logic
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
289700EB
2011-10-21
23/57
Operation:
Description / Mode
Digit 1
Digit 2
Digit 3
Digit 4
PRESSURE CONTROL
mode
P
POSITION CONTROL
mode
V
Valve closed
C
Valve open
O
HOLD (position frozen)
activated
H
ZERO running
Z
LEARN running
L
Safety mode established.
Refer to «Safety mode» for
details.
D
0 . . . 100
= valve position (%, 0 = closed / 100 = open)
Service request
1)
S
R
1)
If SR is blinking alternatively with the actual mode display (e.g. P.11
⇔
..SR) the valve requires cleaning.
Fatal error:
Description
Digit 1
Digit 2
Digit 3
Digit 4
Fatal error occurred
E
Error code. Refer to «Trouble shooting» for details
3.6 Setup
procedure
To enable this valve for pressure control setup steps 1 to 5 must be performed.
In case position control is required only it’s sufficient to perform steps 1 and 2.
Setup step
Description
1
POWER UP
Turn on ex 24VDC power supply (and external
±
15 VDC for sensor power
supply if required). Refer to chapter «Behavior during power up» for details.
2
INTERFACE
CONFIGURATION
Refer to chapter «Interface configuration» for details.
3
VALVE and
SENSOR
CONFIGURATION
Basic configurations of the valve must be adapted according to application needs.
Refer to chapter «Valve and sensor configuration» for details.
4
ZERO
Compensation of the sensor offset voltage.
Refer to chapter «ZERO» for details.
5
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
