Operation; Error; Safety Mode - VAT 653 Series Installation, Operating, & Maintenance Instructions

Series 65
'Ho' indicates power up
homing is running
5.6.2

Operation

Description / Mode
Start up (init)
Start up (init) leak tight
Valve closed (leak tight
Valve open
PRESSURE CONTROL mode
POSITION CONTROL mode
(e.g. A..0 = min. conductance)
Closed / open interlock
(Valve closed / open
by digital input)
HOLD (position frozen)
activated
LEARN running
Safety mode established.
Refer to «Safety mode» for
details.
Power failure
5.6.3

Error

Description
Error number (xyz)
Error code
5.6.4

Safety mode

By means of an external switch (see connection diagrams «Electrical connection») the motor power
supply can be interrupted. In this case the valve enters the 'safety mode'. This motor interlock prevents
the valve from moving (e.g. maintenance work). Data reading from the control unit remains possible.
When motor interlock is active during power up the valve directly enters the 'safety mode' and is not able
to do homing. Display shows 'S.XXX' (XXX = value position of valve or C..C for close). In this case
homing cycle will be done when motor interlock is deactivated. Then Display shows 'Ho' (Homing) for a
moment followed by 'A. 0'
963283EA
ERROR! REFERENCE SOURCE NOT FOUND.
Digit 1
)
Digit 1
alternately (if error code exist)
For Error number / code. Refer to «Trouble shooting» for details
Edition 2019-05-03
H o
Digit 2
I n
I n
C -
O
P
A
I
= valve position (
H
L
S
F
Digit 2
E x
- u
Digit 3 Digit 4
- -
- C
- C
0...100
0 = minimal conductance
100 = max. open)
Digit 3 Digit 4
y z
v w
99/129