Endress+Hauser Liquisys M CLM223/253 - Page 57

Liquisys M CLM223/253 Commissioning
Endress+Hauser 57
R217
Display status for
limit contactor
MAX
MIN
Display only.
R2 (2)
Configure limit
contactor for
temperature
measurement
LC PV = limit contactor cond
(1)
LC °C = limit contactor T
(2)
PID controller (3)
Timer (4)
Clean = Chemoclean (5)
USP (6)
EP PW (7)
By confirming with ENTER, another relay
function already switched on is switched
off and its settings are reset to the factory
settings.
R221
Switch function of
R2 (2) off or on
Off
On
R222
Enter switch-on
temperature
250.0 C
-35.0 to 250.0 C
Never set the switch-on point and the
switch-off point to the same value!
R223
Enter switch-off
temperature
250.0 C
-35.0 to 250.0 C
Entering a switch-off point selects either a
Max contact (switch-off point < switch-on
point) or a Min contact (switch-off point >
switch-on point), thereby implementing a
hysteresis that is constantly required (see
"Illustration of the alarm and limit
functions" figure).
R224 Enter pick-up delay
0 s
0to2000s
R225 Enter drop-out delay
0 s
0 to 2000 s
R226
Enter alarm
threshold (as
absolute value)
250.0 C
-35.0 to 250.0 C
If the alarm threshold is undershot/
overshot, this triggers an alarm with the
error message (E067 to E070) and error
current at the transmitter (note alarm
delay in field F3).
If defined as a Min contact, the alarm
threshold must be < switch-off point.
R227
Display status for
limit contactor
MAX
MIN
Display only.
Coding Field Setting range
(Factory settings, bold)
Display Info
R217
LC State
MAX
R2
Sel.Type
LC °C
R221
Function
off
R222
C
°
On value
250.0
R223
C
°
Off value
250.0
R224
s
On Delay
0
R225
s
Off Delay
0
R226
C
°
A.Thresh
250.0
R227
LC State
MAX