Operation Display Panel; Alarm; Maintenance - SMC Networks HECR Series Manual

Operation Display Panel

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.
AT key
Used to start and stop auto tuning.
SEL key
Used to change setting mode.

Alarm

This unit is equipped as standard with a function allowing 14 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.
Alarm
Alarm
Alarm description
code
WRN Upper/Lower temp. limit alarm
ERR01 System error 1
ERR02 System error 2
ERR03 Back-up data error
ERR11 DC power supply failure
ERR12 Internal temp. sensor high temp. error
ERR13 Internal temp. sensor low temp. error
ERR14 Thermostat alarm
ERR15 Abnormal output alarm
ERR16 Low flow rate alarm (Option)
ERR17 Internal temp. sensor disconnection alarm
ERR18 External temp. sensor disconnection alarm Continue
ERR19 Abnormal auto tuning alarm
ERR20 Low fluid level alarm

Maintenance

Please consult SMC for maintenance
Thermo-con/Rack Mount Type
E R R 1 1 W R N
<
P V 3 1 . 6
S V 3 0 . 0
M O D E N o r m a l
Operation
status
Continue The temperature has become out of upper/lower limit range for the target temperature.
Stop The internal cable of the thermo-con has been broken due to abnormal vibration or dropping the product.
Stop EEPROM data has been lost due to high level noise.
Stop EEPROM data of the controller has been destroyed due to high level noise.
The DC power supply has failed (due to fan stop or abnormal high temperature) or the
Stop
thermo-module has been short-circuited.
Stop The internal temperature sensor has become higher than high temp. cutoff setting.
Stop The internal temperature sensor has become lower than low temp. cutoff setting.
Stop The thermostat has been activated due to radiator fin clog or fan/pump failure, etc.
The temperature cannot be changed even at 100 % output due to overload or disconnection
Continue
of the thermo-module.
Stop The flow rate of the circulating fluid has dropped.
Stop The internal temperature sensor has been disconnected or short-circuited.
The external temperature sensor has been disconnected or short-circuited. (Only detected
when in learning control or external tune control)
Stop Auto tuning has not been completed within 20 minutes.
Stop The amount of circulating fluid in the tank has dropped.
2nd, 3rd line
Indicates present temperature [PV] and
target temperature [SV] during normal
C # 1
C
operation. When the alarm arises, the
error is indicated instead and during set-
ting mode selection, the selected setting
mode is indicated.
Used to change set value in each setting
mode.
RET key
Used to fi x set value or return to present
temperature status indication.
Main reason
HECR
Series
key
18