10
Thermo-con Rack Mount Type
Series
HECR
Alarm
code
Alarm description
Operation
status
Main reason
WRN
Upper/Lower temp. limit alarm
Continue The temperature has become out of upper/lower limit range for the target temperature.
ERR01
System error 1
Stop
The internal cable of the Thermo-con has been broken due to abnormal vibration or dropping the product.
ERR02
System error 2
Stop
EEPROM data has been lost due to high level noise.
ERR03
Back-up data error
Stop
EEPROM data of the controller has been destroyed due to high level noise.
ERR11
DC power supply failure
Stop
The DC power supply has failed (due to fan stop or abnormal high temperature) or the
thermo-module has been short-circuited.
ERR12
Internal temp. sensor high temp. error
Stop
The internal temperature sensor has become higher than high temp. cutoff setting.
ERR13
Internal temp. sensor low temp. error
Stop
The internal temperature sensor has become lower than low temp. cutoff setting.
ERR14
Thermostat alarm
Stop
The thermostat has been activated due to filter clog or fan/pump failure, etc.
ERR15
Abnormal output alarm
Continue
The temperature cannot be changed even at 100% output due to overload or disconnection
of the thermo-module.
ERR16
Low flow rate alarm (Option)
Stop
The flow rate of the circulating fluid has dropped.
ERR17
Internal temp. sensor disconnection alarm
Stop
The internal temperature sensor has been disconnected or short-circuited.
ERR18
External temp. sensor disconnection alarm Continue
The external temperature sensor has been disconnected or short-circuited. (Only detected
when in learning control or external tune control)
ERR19
Abnormal auto tuning alarm
Stop
Auto tuning has not been completed within 20 minutes.
ERR20
Low fluid level alarm
Stop
The amount of circulating fluid in the tank has dropped.
P V
<
E R R 1 1 W R N
S V
3 1 . 6
°
C # 1
3 0 . 0
°
C
M O D E N o r m a l
Alarm
Operation Display Panel
This unit is equipped as standard with a function allowing 1 4 kinds of alarms to display on the LCD and can be read out by serial
communication. Also, it can generate relay output for upper/lower temperature limit alarm and output cutoff alarm.
AT key
Used to start and stop auto tuning.
1st line
Indicates No. corresponding to the alarm
which arises and [WRN] comes to light
up when the upper or lower temperature
limit warning occurs.
4th line
Indicates control operation mode during
normal operation and set values during
setting mode selection.
2nd, 3rd line
Indicates present temperature [PV] and
target temperature [SV] during normal
operation. When the alarm arises, the
error is indicated instead and during set-
ting mode selection, the selected setting
mode is indicated.
key
Used to change set value in each setting
mode.
SEL key
Used to change setting mode.
RET key
Used to fix set value or return to present
temperature status indication.
Maintenance
Maintenance of this unit is performed only in the form of return to and repair at SMC's site. As a rule, SMC will not conduct on-site
maintenance.
Alarm
