E5EX–H
E5EX–H
14
Error Messages
The
T
emperature Controller is provided with self-diagnostic functions, and will display
the following error messages on the PV display in case of
an
error
.
Message
Cause Control output Alarm output
ffff
Input temperature has risen beyond the upper limit of
the temperature range by more than 20
°C
OFF during reverse
(heating) operation
On during normal (cool
-
ing) operation
Sends alarm signal in accor
-
dance with the set alarm
mode.*
----
Input temperature has fallen below the lower limit of
the temperature range by more than 20
°C.
On during reverse
(heating) operation
OFF during normal
(cooling) operation
Sends alarm signal in accor
-
dance with the set alarm
mode.*
5.err (flashes)
The
thermocouple has burned out or short-circuit bar
has been removed. The platinum resistance thermom
-
eter has burned out or A and B have been short-cir
-
cuited.
OFF
Sends alarm signal in accor
-
dance with the set alarm
mode. Proportional alarm out
-
put is OFF
, however
.
e111 (flashes)
e333 (flashes)
Memory failure (
e111
) or A/D converter failure (
e333)
has occurred. T
emperature Controller must be repaired
if recovery is not made by turning power of
f once and
on again.
OFF OFF
*When the J thermocouple is used, however
, this error message is not displayed
until the temperature has risen above the set temperature
range
by more than 70
°C.
**When the temperature resistance thermometer is used, this message is displayed when the temperature has fallen to –99.9
°C.
The T
emperature Controller displays the following error message in case of a Current T
ransformer input error
.
Message
Cause Control output
Heater disconnection alarm output
ffff
CT input current is
over 50.0 A
Normal
Retains condition there was before
ffff
is displayed. Alarm
output and sensor abnormality alarm output can function nor
-
mally.
Installation
Wiring
*Current Transformer must be either
E54–CT1 or E54–CT3.
**Heater burnout alarm output terminal is
used to indicate both heater disconnection
and sensor errors.
For SSR
output
For voltage
output
For relay
output
Control
output
Alarm output
Heater burnout alarm output**
Current Transformer*
FG
100 to 240 VAC, 50/60 Hz
Use these terminals when connecting a
platinum
resistance thermometer (remove short
bar from terminals 13 and 14).
Use these terminals when connecting a
thermocouple (do not remove short bar
from terminals 13 and 14).
40 mA,
12 VDC
Ground FG terminal 18 to avoid ambient noise.
Do not connect unused terminals.