Installation and Operation Handbook
1.12.3 DIAGNOSTIC ALARMS
These indicate that a fault exists in either the controller or the connected devices.
Display
What it means
shows
Electrically Erasable Memory
EE.Er
Error:
The value of an operator or
configuration parameter has
been corrupted
Sensor Break:
S.br
Input sensor is unreliable or
the input signal is out of
range
Loop Break:
L.br
The feedback loop is open
circuit
Load failure
Ld.F
Indication that there is a
fault in the heating circuit or
the solid state relay
Solid state relay failure
SSr.F
Indication that there is a
fault in the solid state relay
Heater failure
Htr.F
Indication that there is a
fault in heating circuit
Hardware error
HW.Er
Indication that a module is
the wrong type
No I/O module
no. io
Modules are configured but
not fitted
Figure 1.19a Diagnostic alarms - continued on the next page
2216e Controller
Part Number HA026639
What to do about it
This fault will automatically take you into configuration level.
Check all of the configuration parameters before returning
to operator level. Once in operator level, check all of the
operator parameters before resuming normal operation. If
the fault persists or occurs frequently, contact your supplier
Check that the sensor is correctly connected
Check that the heating and cooling circuits are working
properly
This is an alarm generated by feedback from a TE10S solid
state relay (SSR) operating in PDS SSRx Load Doctor-see
Electrical installation Chapter 2. It indicates either an open
or short circuit SSR, blown fuse, missing supply or open
circuit heater
This is an alarm generated by feedback from a TE10S solid
state relay (SSR) operating in PDS SSRx Load Doctor see
Electrical installation Chapter 2. It indicates either an open
or short circuit condition in the SSR
This is an alarm generated by feedback from a TE10S solid
state relay (SSR) operating in PDS SSRx Enhanced Load
Doctor-see Electrical installation Chapter 2. It indicates
either a blown fuse, missing supply or open circuit heater
Check that the correct modules are fitted
This error message normally occurs when pre-configuring a
controller without installing any of the required I/O modules
Issue 4
(CN22918)
Operation
1-25
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