Endress+Hauser Liquisys M CCM223 - Relay Configuration

Commissioning Liquisys M CCM223/253
60 Endress+Hauser
Coding Field Range of
adjustment
(factory settings in
bold)
Display Info
P125 Select process
monitoring
Off
AC
CC
AC+CC
AC!
CC!
AC+CC!
P125
ProcMonit
Off
A0002002-EN
AC = sensor activity monitoring
CC = controller monitoring
Alarm possible without or with
simultaneous controller switch-
off.
xxxx = without controller
switch-off
xxxx! = with controller switch-
off
Options CC, AC+CC, CC! and AC
+CC! can only be selected if pH
is selected in field P1(2).
P126 Enter
maximum
permissible
duration for
alarm
threshold
undershoot
60 min
0 to 2000 min
P126
min
Tmax Low
60
A0002003-EN
Only if P125 = CC or AC+CC
P127 Enter
maximum
permissible
duration for
alarm
threshold
overshoot
120 min
0 to 2000 min
P127
min
Tmax High
120
A0002004-EN
Only if P125 = CC or AC+CC
P128 Enter limit
value
pH 7.20
pH 4 to 9
P128
pH
Setpoint
7.20
A0002005-EN
Limit value for monitoring
according to fields P126 and
P127.

When performing
external control from a
process control system
with an external set point,
make sure that the setting
matches that in field
P128.
7.4.7 Relay configuration
For the "RELAY" function group, you require a relay card which is not available in the basic
device version.
The following relay contacts can be selected and configured as desired (max. four contacts,
depending on options installed):
• Limit contactor for chlorine/chlorine dioxide measured value: R2 (1)
• Limit contactor for pH/ORP measured value: R2 (2)
• Limit contactor for temperature: R2 (3)
• PID controller for chlorine/chlorine dioxide: R2 (4)
• PID controller for pH: R2 (5)
• Timer for cleaning function: R2 (6)
• Chemoclean function: R2 (7)
• Three-point step controller for chlorine/chlorine dioxide: R2 (8)
Only one function can be assigned to each relay. If a relay function is already switched on
(R211 to R281), it is switched off automatically when you select another function and
press ENTER to confirm (R2(1) to R2(8)).
Pressing the REL key allows you to display the corresponding setpoint of every relay
function.