Series 642
OPERATION
605593EC
Edition 2017-11-24
81/113
SYNC indicates that powerup
synchronization is running.
S
Y
N
C
1) SPS = optional ±15 VDC Sensor Power Supply module
2) PFO = Power Failure Option
5.6.2
Operation
Description / Mode
Digit 1
Digit 2
Digit 3
Digit 4
PRESSURE CONTROL mode
P
0 . . . 100
= valve position (%, 0 = closed / 100 = open)
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
Service request
1)
S
R
Power failure
F
1)
SR is blinking alternatively with the actual mode display (e.g. C
SR)
5.6.3
Errors
Description
Digit 1
Digit 2
Digit 3
Digit 4
Fatal error occurred
E
Error code. Refer to «Trouble shooting» for details