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GEMÜ 639 eSyStep
Positioner (Code S0)
3 Product description
Item
Name
Materials
8
CONEXO body RFID
chip
(see Conexo informa-
tion)
9
Electrical connections
10 CONEXO actuator RFID
chip
(see Conexo informa-
tion)
3.2 LED displays
3.2.1 Status LEDs
LED
Colour
Function
Standard
Inversed
1)
Power/fault
green
green
Operating indica-
tion/
communication
status
red
red
Open
orange
green
Process valve in
OPEN position
Error
red
red
Error
Closed
green
orange
Process valve in
CLOSED position
1) Inversed representation of the OPEN and CLOSED LEDs, ad-
justable via IO-Link
3.2.2 LED conditions
Status
process
valve
Power/
fault
Open
Error
Closed
OPEN posi-
tion
CLOSED po-
sition
Position un-
known
Initialization
Open and Closed flash
alternately
LED conditions
lit (on)
flashes
off
3.3 Description
The GEMÜ 639 is a motorized 2/2-way diaphragm valve. The
eSyStep electric actuator is available as ON/OFF or with integ-
rated positioner. An integral optical and electrical position in-
dicator is standard. The self-locking actuator holds its posi-
tion in a stable manner when idle and in the event of power
supply failure.