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ATR243 - User manual - 45
11.e
Lower Deviation Alarm (
L.d.AL.
selection)
1
Pv
Comand Spv
Alarm Spv
Off Off
On On
Hysteresis
parameter

> 0
Time
Alarm
output
Alarm Spv
Lower deviation alarm value of alarm setpoint
greater than “0” and hysteresis value greater
than “0” (par. 28
A.1.HY.
> 0). **
2
Pv
Comand Spv
Alarm Spv
Off Off
On On
Hysteresis
parameter

> 0
Time
Alarm
output
Comand Spv Comand Spv Comand Spv Comand Spv
Alarm Spv Alarm Spv
Lower deviation alarm value of alarm setpoint
less than “0” and hysteresis value greater than
“0” (par. 28
A.1.HY.
> 0). **
** The example refers to alarm 1; the function can also be enabled for alarms 2 and 3 on models that include
it. b) With hysteresis value less than “0” ( A.1.HY. < 0) the broken line moves under the alarm setpoint.
12 Table of Anomaly Signals
If installation malfunctions, controller will switch off regulation output and will report
the anomaly. For example, controller will report failure of a connected thermocouple
visualizing
e-05
fl ashing on display for other signals, see table below.
Cause what to do
E-01
SYS.E
Error in EEPROM cell
programming.
Call Assistance.
E-02
SYS.E
Cold junction sensor fault or
room temperature outside of
allowed limits.
Call Assistance.
E-04
SYS.E
Incorrect confi guration data.
Possible loss of calibration
values.
Check if the confi guration
parameters are correct.
E-05
SYS.E
Thermocouple open or
temperature outside of limits. Check the connection with the
sensors and their integrity.
E-08
SYS.E
Missing calibration data. Call Assistance.