39
User manual S200 WCS
Update August 2021
9 Alarm messages
9.1 List of error messages
Alarm message
Cause
Activity
Remedy
Slope of pH probe
pH measurement
Slope of probe
< 50mV
Controller function remains
active, faulty calibration
value is accepted
Recalibrate or replace
the probe
Error zero point pH
pH measurement
Zero point deviation > ±58mV
Controller function remains
active, faulty calibration
value is accepted
Recalibrate or replace
the probe
Zero point error ORP
Redox measurement:
Zero point deviation > ±58mV
Controller function remains
active, faulty calibration
value is accepted
Recalibrate or replace
the probe
Limit value
controller 1
Upper or lower limit value of
controller
1
has
been
exceeded/fallen short of
Alarm relay switches
Check
the
measurement and
control
Limit value
controller 2
Upper or lower limit value of
controller
2
has
been
exceeded/fallen short of
Alarm relay switches
Check
the
measurement and
control
Limit value
controller 3
Upper or lower limit value of
controller
3
has
been
exceeded/fallen short of
Alarm relay switches
Check
the
measurement and
control
Limit value
controller 4
Upper or lower limit value of
controller
4
has
been
exceeded/fallen short of
Alarm relay switches
Check
the
measurement and
control
Dosing monitoring
controller 1
Controller 1 has worked with
100% control value for a time
exceeding the set dosing
monitoring time.
Controller 1 is turned off, and
the alarm relay switches
Check
measurement
and control; confirm the
error message by
briefly switching to the
manual mode.
Dosing monitoring
controller 2
Controller 2 has worked with
100% control value for a time
exceeding the set dosing
monitoring time.
Controller 2 is turned off, and
the alarm relay switches
"
Dosing monitoring
controller 3
Controller 3 has worked with
100% control value for a time
exceeding the set dosing
monitoring time..
Controller 3 is turned off, and
the alarm relay switches
"
Dosing monitoring
controller 4
Controller 4 has worked with
100% control value for a time
exceeding the set dosing
monitoring time.
Controller 4 is turned off, and
the alarm relay switches
"
Switch-on delay
Switching the power supply of
the S200 on
Switching on of the controller
will be delayed by the
adjustable delay time
External controller
stop
Digital input 1 terminal 21/22 is
switched
The controller is stopped
If digital input 1 is not
switched, the controller
will work again