
Signal
Terminal identi‐
fier / Pin
LED identifier
Type of contact
Remarks
External fault (gas
detector)
XK7/3,4
ES
NC
XK7/4 = GND;
Jumpered as supplied
Pre-storage module full
XK8/1,2
PA
NC
Pulse outputs
Signal
Terminal identi‐
fier / Pin
LED identifier
Type of contact
Remarks
HCl metering pump
X1/1,2
PS
N/O
-
NaClO
2
metering pump
X2/1,2
PN
N/O
-
Switching outputs
Signal
Terminal identi‐
fier / Pin
LED identifier
Type of contact
Remarks
Warning
XR1/1
WR
N/O
Operation
XR1/2
BE
N/O
shared root
XR2/1
Alarm
XR2/2
AL
NC
Voltage outputs
Signal
Terminal identi‐
fier / Pin
LED identifier
Type of contact
Remarks
Outlet valve acid
XR3/1,5,9
VA
N/O
PE: XP1. Fixed at 90/230V
Outlet valve chlorite
XR3/2,6,10
VA
N/O
PE: XP1. Fixed at 90/230V
Valve chlorine dioxide
XR3/3,7,11
VC
N/O
PE: XP1. Fixed at 90/230V
Water valve
XR3/4,8,12
VW
N/O
PE: XP1. Fixed at 90/230V
PE / N / L
Voltage inputs
Signal
Terminal identifier / Pin
LED identifier
Remarks
HCl metering pump
XP1/1,5,9
-
NaClO
2
metering pump
XP1/3,7,11
-
Mains terminal
XP1/4,8,12
-
PE / N / L
Wiring diagram CDLb
68