SMC Networks HECR Series Installation And Maintenance Manual page 3

5 Installation Continued
 Never touch the power switch with wet hands to avoid electrical shock.
 Do not touch the surface when the set temperature is high. Temperature
of the tank and the chassis near the tank could be high.
 Fluid other than water or Ethylene Glycol (up to 20%) should not be
used as circulating fluid. Using such fluid may lead to leakage or
damage of the pump.
 Operation of the pump with a large amount of air left in the piping for
prolonged period may damage the pump. Remove air from piping before
starting operation.
 If the power switch is turned on without circulating fluid, the pump could
be damaged.
 Take care not to spill water over the product when supplying water to the
reservoir. When a spill is made, wipe it off immediately and only supply
power after it has dried. If this procedure is neglected, it may cause
damage to the product.
 If a fluid with low conductivity such as DI water is used as circulating fluid,
it can cause static electricity due to friction and damage the product.
Take measures to minimize the static electricity from circulating fluid.
 If the product is operating for a long time with large temperature
fluctuations after reaching the set temperature, the product may be
damaged. Please set the PID values by using the auto-tuning function.
6 Operation
6.1 Power Up
When power is turned on, the software version is indicated on display
panel for approx. 1 second.
6.2 Operation
The product begins operation immediately after the power is turned on.
The pump and heat exchanger will be running and the product will begin
temperature control.
The display can show the following information during operation.
1st line
Indicates No.
corresponding to the
2nd, 3rd line
alarm which arises and
Current temp.[PV]]and
[WRN] comes to light
target temp.[SV] during
up when temp. upper ERR11 WRN
normal operation.
or lower limit warning
PV < 31.6 °C #1 When the alarm arises,
occurs.
the error is indicated
SV < 30.0 °C
instead and during
MODE Normal
setting mode selection,
the selected setting
4th line
mode is indicated.
Indicates control
operation mode
during normal
operation and set
values during setting
mode selection.
6.3 Settings
Three different levels of settings are available
depending on the content, which needs to be set.
Level 1: Used in normal operation e.g. setting
Operation SEL
of target temperature and offset.
Level 2: Used at maintenance and initial setting SEL
Operation
for setting of controller/PID.
Operation SEL
Level 3: Used at initial setting for the
communication function.
The key functions are as follows:
[SEL]: Used to show the item that needs to be
changed in selected mode level.
[ ]: Used to change the value of the item selected.
▽△
[RET]: Used to fix the value changed by [▽△] key.
Press again to return to current temperature
indication.
[AT]: Used to start auto tuning in auto tuning mode
(This function works when the control operation mode is 2 in level setting 1)
When pressed during auto tuning, the auto tuning is stopped.
 When no input is made within 1 minute regardless of setting mode, the
display returns to the current temperature indication.
 The data input is written to FRAM and memorized after the power supply
is turned off.
 To return all of the setting values to default: Turn on the power supply
while pressing [SEL] and [RET] keys.
6 Operation Continued
6.3.1 Level 1－Settings
No. Modes Setting contents
Target Temp.
1 Sets target temp. for control.
(No indication on
display)
Selects control operation mode
from those shown below.
0: Pump stop (No control)
1: Normal operation
2: AT(auto tuning)
2 Control Operation 3: Learn (learning control)
4: External (external tune control)
5: SeriRem (Serial remote)
5:Serial remote is displayed when
choose the Modbus
communication.
External Sensor Sets sampling cycle for learning
3
Sampling Cycle control or external tune control.
Indicates the offset value of the
circulating fluid temperature used
4 Offset Value
as reference value by the
controller (SV + Offset).
Allowable Upper Sets upper limit of temp. range
5
Temp. Range which causes a warning to occur.
Allowable Lower Sets lower limit of temp. range
6
Temp. Range which causes a warning to occur.
Sets upper limit of temp.
measured by the internal temp.
7 High Temp. Cutoff
sensor and stops operation of the
product.
Sets lower limit of temp. measured
8 Low Temp. Cutoff by the internal temp. sensor and
stops operation of the product.
6.3.2 Level 2－Settings
No. Modes Setting contents
Sets the fine adjusting value to
Fine Control of
1 calibrate the internal temp.
Internal Sensor
sensor
Sets the fine adjusting value to
Fine Control of
2 calibrate the external temp.
External Sensor
sensor available optionally.
Sets PB (Proportional Band)
3 PB Range
range used for PID control.
Sets integral time used for PID
4 I Constant
control.
Sets differential time used for
PID control.
5 D Constant
When 0 is set, differential
operation is not made.
Sets output ratio of cooling to
Heating/Cooling
6 heating to compensate
Ratio
difference of gain between them.
Sets the temp. range for
Overload Judging judgment of overload
7
Temp. Rang (accompanying abnormal output
+
▼
alarm ERR15).
Sets time for judgment of
▲ overload (accompanying
+
Overload Judging
8 abnormal output alarm ERR15).
Time
When 0 is set, the alarm doesn't
arise.
Shows output ratio of thermo
module by 1%. The prefix
9 Output Ratio
symbol "-" stands for cooling and
no prefix stands for heating.
Determines whether or not temp.
Upper/Lower upper/lower limit alarm is output
10 Temp. Alarm when power is turned on.
Sequence On : Output
Off : Not output
6.3.3 Level 3－Settings
No. Modes Setting contents
Serial
1 RS-232C / RS-485
communications
Termination Sets the termination resistor (120
2
) for RS-485 communication
resistor
Set the Communication protocol.
Communication SMC CMD:same as existing HEC
3
protocol communication
Modbus:Modbus communication
6 Operation Continued
Modes Setting contents
No.
Setting range
Sets the unit No. used. This is
Default
(Min. increment) applicable only when multiple
Thermo-cons are used.
4 Unit Number
10.0 to 60.0C
(Unit number 1 to F is vaild when
25.0
(0.1C)
used the Modbus communication)
Sets baud rate for
5 Baud Rate
communication.
Sets parity bit for communication.
None : No parity
6 Parity Bit
Odd : Odd
0,1,2,3,4,5 1
Even : Even
Sets data length for
7 Data Length
communication.
Sets stop bit for communication.
8 Stop Bit
10 to 999sec
60
(1sec)
7 Outline Dimensions (mm)
HECR008/012-W
-9.99 to 9.99C
0.00
(0.01C)
0.1 to 10.0C
1.5
(0.1C)
0.1 to 10.0C
1.5
(0.1C)
11.0 to 70.0C
70.0
(0.1C)
0.0 to 59.0C
0.0
(0.1C)
Setting range
Default
(Min. increment)
-9.99 to 9.99C
0.00
(0.01C)
HEC008/012-W-E(option)
-9.99 to 9.99C
0.00
(0.01C)
HECR008-W
0.3 to 9.9C 6.0
(0.1C)
HECR012-W
8.0
HECR008-W
18.0
1 to 999sec
(1sec)
HECR012-W
50.0
0.0 to 99.9sec
0.0
(0.1sec)
10 to 999%
300
(1%)
0.1 to 9.9℃
0.2
(0.1sec)
0 to 99min
8 Key Parts
10
(1min)
HECR008 / HECR012-W
-100 to 100%
-
(1%)
On, Off Off
Setting range Default
RS-232C,
RS-232C
RS-485
A Power switch
B Display/Operation panel
On, Off Off
C Reservoir Cap
D Level gauge
SMC CMD SMC
E Handle
Modbus CMD
F Model No. label
G Power supply connector
9 Maintenance
9.1 Daily Check
Setting range Default
1) Indication of display panel: Check temperature condition and confirm
0 to F whether or not an alarm has occurred.
0
(Hex decimal)
2) Confirm that the panel are free from dust. A large amount of dust may
impair the performance.
600, 1200, 2400,
3) Confirm there is no leakage of circulating fluid and check the condition
4800, 9600, 1200
19200b/s
of the piping (e.g. no tight bends or crushed pipes).
4) Confirm there is no abnormal sound, smell or heating from the product.
None, Odd,
None
Even
 When cleaning the panel use a vacuum cleaner to remove the dust. Do
7Bits, 8Bits 8
not use water or steam since it leads to rusting of the frame.
9.2 General Maintenance
1Bit, 2Bits 1
Replace the circulating fluid regularly to avoid any problems due to algae
or contamination.
<Drain circulating fluid>
1. Drain circulating fluid from the Drain port.
Loosen the reservoir cap to help draining. (Do not remove the cap)
2. To drain from the piping, blow air (0.1MPa, about 1 minute) from Fluid
OUT to Drain port. Close the reservoir cap and Fluid IN while blowing.
 The repair and maintenance services of this unit are performed only at
SMC factory. SMC does not provide on-site repair or maintenance
service in a national or overseas situation.
 It is recommended to prepare spare units to minimize downtime due to
those repair and maintenance services.
 Drain the fluid from the product when it is returned for the repair and
maintenance service. If the fluid is left inside, an accident and damage
can result during transportation.
 Do not make any modification to the product.
 Do not disassemble the product, unless required by installation
instructions.
 If fluid other than water is used, wash the circulating fluid circuit with
water or DI water before returning the product to SMC. Products that
have not been washed may not be accepted at the factory.
10 Troubleshooting
10.1 How to reset the alarm
Code
ERR01
ERR02
ERR03
WRN
10.2 Product alarm codes
Code Description
Temp.
WRN
upper/lower limit
ERR01 System error 1
ERR02 System error 2
Back-up data
ERR03
error
DC power
ERR11
supply failure
H Communication connector
I External sensor/Alarm output connector
J Circulating fluid IN
K Circulating fluid OUT
L Facility water IN
M Facility water OUT
N Dain port
Description Manner of reset
System error 1 Restart the power supply. In the case the
alarm can't be reset by above manner, repair
is required.
System error 2
Initialization of FRAM or stop and restart of
power supply In the case the alarm can't be
Back-up data error
reset by above manner, repair is required.
Temp. upper/lower limit The unit continues controlling and recovers
alarm normal condition at any time.
Remove a possible cause and restart. In the
case the alarm can't be reset by above
Others
manner, repair is required.
Operation Reason for alarm
Cause / Measure
status setting
Product is reaching target temperature.
Fluid temperature is
Continue Wait for the temperature to stabilize,
out of limit range.
then the WRN should disappear.
The wire inside the
Thermo-con was
In the case the alarm can't be reset by
Stop broken due to
above manner, repair is required.
vibration during
transport.
Move the product to an environment
The FRAM data was with little noise, turn ON the power
Stop destroyed by high- supply. If there is no alarm, it was
level noise. caused by noise.
Please consult with SMC.
Move the product to an environment
The memory data with little noise, turn ON the power
Stop was destroyed by supply. If there is no alarm, it was
high-level noise. caused by noise.
Please consult with SMC.
Check the power voltage.
DC output voltage of
HECR008: 100 to 240VAC
product is reduced.
HECR012: 200 to 240VAC
Stop
The fans at the Remove foreign matters which might
power supply stops. stop the fan.