55 / 68
651
1
2
3
4
5
LED Designation Colour
1 CLOSED orange
2 ERROR red
3 OPEN yellow
4 POWER green
5FAULT red
LED conditions
X lit (on) ~ irrelevant
O flashes - off
Function
LEDs
FAULT
POWER
OPEN
ERROR
CLOSED
Programming mode ~ ~ O - O
Process valve in OPEN position ~ ~ X - -
Process valve in CLOSED position ~ ~ - - X
Programming error ~ ~ - X O
Sensor error ~ ~ O X -
Internal error ~ ~ O X O
AS-Interface error X X ~ - ~
14.4 End position programming
The GEMÜ 651 valve is able to learn the end positions of the actuator by means of a
programming mode so that mechanical settings are no longer necessary.
For actuators factory-mounted to the valve body the end position feedback is already
programmed.
Important:
It is necessary to re-programme the end positions if the actuator is replaced or later
refi tted (and also if retightening / replacing the shut-off diaphragm).
Programming the end positions using the manual or automatic programming mode.
Manual programming mode:
1. Set DO1 = 0 (manual programming).
2. Set DO2 = 1 (combi switchbox in programming mode).
3. Set DO0 = 1 (activate valve).
4. When the valve has reached
its end position, set DO0 = 0.
5. When the valve has reached
its end position, set DO2 = 0 (combi switchbox in normal operation)
Automatic programming mode:
1. Set DO1 = 1 (automatic programming).
2. Set DO2 = 1 for a moment (>100ms) (combi switchbox in programming mode).
(immediately reset to 0 again)
3. Set DO1 = 0.
4. Wait until the valve has opened and closed automatically.
After programming the end positions, activate the combi switchbox by setting DO0=1.
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