INSTRUCTION MANUAL
Micro-computer based digital indicating controller TP40A
To prevent accidents arising from the misuse of this controller, please ensure the operator using it receives
this manual.
Caution
• This instrument should be used according to the specifications described in the manual.
If it is not used according to the specifications, it may malfunction or cause fire.
• Be sure to follow the warnings, cautions and notices. If not, it could cause serious injury or malfunction.
• Specifications of the TP40A and the contents of this instruction manual are subject to change
without notice.
• This instrument is designed to be installed in a control panel. If not, measures must be taken to ensure
that the operator cannot touch power terminals or other high voltage sections.
• Be sure to turn the power supplied to the instrument OFF before cleaning this instrument.
• Use a soft and dry cloth when cleaning the instrument.
(If paint thinner is used, it might deform or tarnish the unit.)
• As the display section is vulnerable, do not strike or scratch it with a hard object.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• IMO Precision Controls Limited is not liable for any damages or secondary damages incurred as a result
of using this product, including any indirect damages.
1. Name
1.1 Model name
TP40A , Series name: TP40A (W48 x H48 x D96.5mm)
R Relay contact: 1a
OUT1
Input M Multi-range *2
Option
*1: Alarm actions (9 types and No alarm action) and Energized/Deenergized can be selected by key
operation.
*2: Thermocouple, RTD, DC current, and DC voltage can be selected by key operation.
*3: 100 to 240V AC is standard specification for the supply voltage. However, when ordering please
specify 240AC for 100-240AC supply or 24DC for 24VAC/DC.
S Non-contact voltage (for SSR drive): 12
A DC current: 4 to 20mA DC
V DC voltage, 0 – 10 VDC
A2 Alarm 2 (A2) *1
W (5A) CT rated current: 5A
W (10A)
DT OUT2 (Heating/Cooling
C5 Serial communication (RS-485)
SM SV1/SV2 external selection
LA Loop break alarm
Heater burnout alarm
control output)
CT rated current: 10A
Non-contact relay
＋２
０
V DC
1
2. Name and functions of the sections
(1) PV display: Indicates the input value with a red LED.
(2) SV display: Indicates the setting value with a green LED.
(3) SV1 indicator: A green LED lights up when SV1 is indicated
on the SV display.
(1)
on the SV display.
(5) OUT1 indicator: When OUT1 or heating output is ON,
(2)
a green LED lights up. (For A/ type,
it blinks corresponding to the manipulated
(3)
variable in a 0.25 second cycle)
(4)
(6) OUT2 indicator: When OUT2 (option DT) is ON, a yellow
LED lights up.
TP40A
(7) A1 indicator : When A1 output is ON, a red LED lights up.
(8) EVT indicator: When Event output (option: A2, LA or W)
is ON, a red LED lights up.
(9) AT indicator : When auto-tuning or auto-reset is being
(Fig. 2-1) performed, a yellow LED blinks.
(10) TX/RX indicator: A yellow LED blinks during serial communication output (transmitting).
again for approx. 1 second.)
(11) (12) (13) (14)
(11) Increase key : Increases the numeric value.
(12) Decrease key : Decreases the numeric value.
(13) Mode key : Selects the setting mode or registers the setting value.
(By pressing the Mode key, the setting value or selected value can be registered)
(14) OUT/OFF key : The control output ON/OFF function or Auto/Manual control function can be
switched. (To cancel the control output ON/OFF function, press the OUT/OFF key
TP40A
(5)
(4) SV2 indicator: A yellow LED lights up when SV2 is indicated
(6)
(7)
(8)
(9)
(10)
Notice
When setting the specifications and functions of this controller, connect the terminals 1 and 2 for power
source first, then set them referring to “5. Setup” before performing “3. Mounting to control panel” and
“4. Wiring connection”.
3. Mounting to control panel
3.1 Site selection
This instrument is intended to be used under the following environmental conditions
(IEC61010-1): Overvoltage category
Mount the controller in a place with:
A minimum of dust, and an absence of corrosive gases
•
No flammable, explosive gasses
•
•
• No large capacity electromagnetic switches or cables through which large current is flowing
• No water, oil or chemicals or where the vapors of these substances can come into direct
Few mechanical vibrations or shocks
•
No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )
•
that does not change rapidly
An ambient non-condensing humidity of 35 to 85%RH
contact with the controller
3.2 External dimension
Gasket
, Pollution degree 2
Screw type mounting bracket
48
(Fig. 3.2-1)
95
2
44
59
3.3 Panel cutout
75
controller, IP66 specification will not be fulfilled.
(Fig. 3.3-1)
3.4 CT (Current transformer) external dimension
45
0.5
+
0
0
+0.5
45
Lateral close mounting
+0.5
n: Number of units mounted
n x 48-3
0
Caution: If lateral close mounting is used for the
0
+0.5
45
CTL-6S (for 5A, 10A, 20A) CTL-12-S36-10L1 (for 50A)
(Fig. 3.4-1)
3.5 Mounting
Mount the controller vertically to fulfill the Dust-proof/Drip-proof specification (IP66).
Mountable panel thickness: Within 1 to 15mm
Insert the controller from the front side of the panel.
Attach the mounting brackets by the holes at the top and bottom of the case and secure the controller
in place with the screws.
(Fig.3.5-1)
Warning
As the case is made of resin, do not use excessive force while screwing in the
mounting bracket, or the case or screw type mounting bracket could be damaged.
The torque is approximately 0.12N•m.
3
4. Wiring connection
Warning
Turn the power supply to the instrument off before wiring or checking it.
Working or touching the terminal with the power switched on may result in Electric
Shock causing severe injury or death.
• A1 : Alarm 1 output
• EVT : Event output (A2 output, Heater
burnout alarm output, Loop break
alarm output)
• CT : CT input
• TC : Thermocouple
• RTD : Resistance temperature detector
•
(Fig. 4-1)
OUT1 : Control output 1 (Heating output)
•
• OUT2 : Control output 2 (Cooling output)
• SV2 : Main setting 2 (SV2)
• RS-485 : Serial communication (RS-485)
DC : DC current, DC voltage
Notice
• The terminal block of the TP40A is designed to be wired from the left side.
The lead wire must be inserted from the left side of the terminal, and fastened by the
terminal screw.
• Dotted lines show options.
• Use a thermocouple and compensating lead wire according to the sensor input specification of
this controller.
• Use the 3-wire RTD which corresponds to the input specification of this controller.
• This controller does not have built-in power switch, circuit breaker or fuse. Therefore, it is
necessary to install them in the circuit near the external controller.
(Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)
• When using a 24V AC/DC for the power source, do not confuse the polarity when it is
DC.
• When using a relay contact output type, externally use a relay according to the capacity of
the load to protect the built-in relay contact.
• When wiring, keep input wires (thermocouple, RTD, etc.) away from AC sources or load
wires to avoid external interference.
• Do not apply a commercial power source to the sensor connected to the input terminal nor
allow the power source to come into contact with the sensor.
Lead wire solderless terminal
Use a solderless terminal with isolation sleeve that fits in the M3 screw as shown below.
The torque is approximately 0.6N•m to 1.0N•m.
Solderless
terminal
Y type
Round type
Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.
Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.
Manufacturer Model name Tightening torque
0.6N•m
Max. 1.0N•m
3.2mm
1.25Y-3
VD1.25-B3A
1.25-3
V1.25-3
3.2mm
5.8mm or less
5.8mm or less
(Fig. 4-2)
4
Option: Heater burnout alarm
(1) This alarm is not available for detecting heater current
under phase control.
(2) Use the current transformer (CT) provided, and pass one
lead wire of the heater circuit into the hole of the CT.
CT
(11)
CT input Terminal
(12)
Power
supply
(3) When wiring, keep the CT wire away from AC sources
or load wires to avoid the external interference.
(Fig. 4-3)
Heater
5. Setup
Wire the power terminals only. After the power is turned on, the sensor input characters and temperature
unit are indicated on the PV display and the input range high limit value is indicated on the SV display for
approximately 3 seconds. (Table 5-1)
(If any other value is set during the scaling high limit setting, the set value is indicated on the SV display)
During this time, all outputs and the LED indicators are in OFF status.
Control will then start and the input value will be indicated on the PV display and main setting value (SV)
will be indicated on the SV display. (While control output OFF function is working,
the PV display.)
(Table 5-1)
Sensor input
K
J
R
S
B
E
T
N
PLC (W/Re5-26)
Pt100
JPt100
4 to 20mA DC
0 to 20mA DC
0 to 1V DC
0 to 5V DC
1 to 5V DC
0 to 10V DC
PV display SV display PV display SV display
Scaling high
limit value
Scaling high
limit value
is indicated on
5
5.1 Setup flow chart
PV/SV display mode
(Approx. 3s)
(Approx. 3s) (Approx. 3s)
[Main setting mode] [Sub setting mode] [Auxiliary function [Auxiliary function
setting mode 1] setting mode 2]
SV1
]
[
SV2
]
[
OUT2 proportional cycle
A1 setting
A2 setting
Heater burnout alarm
Loop break alarm action
Loop break alarm action
AT setting/Auto-reset
OUT1 proportional band
OUT2 proportional band
Integral time setting
Derivative time setting
ARW setting
OUT1 proportional cycle
setting [ / ]
setting [ ]
setting [
]
[
]
[
]
[
setting [
setting [
[
[
setting [
time setting [
span setting [
]
]
]
Control output OFF function [
or Auto/Manual control function
]
]
. ]
]
+ + +
+
Setting value lock selection
[ ]
SV high limit setting
[ ]
SV low limit setting
[ ]
Sensor correction setting
[ ]
Communication protocol
selection [ ]
Instrument number
selection [ ]
Data transfer rate selection
[ ]
Parity selection
[ ]
Stop bit selection
[ ]
]
]
A1 action selection
Output manipulated
variable indication
Input type selection
[ ]
Scaling high limit setting
[ ]
Scaling low limit setting
[ ]
Decimal point place
selection [ ]
PV filter time constant
setting [ ]
OUT1 high limit setting
[ ]
OUT1 low limit setting
[ ]
OUT1 ON/OFF action
hysteresis setting [ ]
OUT2 action mode selection
[ ]
OUT2 high limit setting
[ ]
OUT2 low limit setting
[ ]
Overlap band/Dead band
setting [ ]
OUT2 ON/OFF action
hysteresis setting [ ]
[
]
A2 action selection
A1 action Energized/
A2 action Energized/
A1 hysteresis setting
A2 hysteresis setting
A1 action delayed timer
A2 action delayed timer
Direct/Reverse control action
AT bias setting
SVTC bias setting
SV2 setting mode indication
Output status selection when
[ ]
Deenergized [ ]
Deenergized [ ]
[ ]
[ ]
setting [ ]
setting [ ]
selection [ ]
[ ]
[ ]
selection [ ]
input burnout [ ]
OUT/OFF key function
selection [ ]
[Key operation]
• + : Press the key while holding down the key.
• + (Approx. 3s): Press the key for 3 seconds while holding down the key.
• + + (Approx. 3s): Press the for 3 seconds while holding down the and keys.
Dotted lines show options, which are indicated only when the options are applied.
6
5.2 Main setting mode
Character Name, Function, Setting range Default value
SV1
• Sets SV1.
• Setting range: SV low limit to SV high limit
SV2
• Sets SV2.
• Available only when the option SM is applied.
• Setting range: SV low limit to SV high limit
5.3 Sub setting mode
Character Name, Function, Setting range Default value
AT setting/Auto-reset setting
• Designates auto-tuning Performance or auto-reset Performance.
• If the auto-tuning is cancelled during the process, P, I and D
• When auto-tuning has not finished after 4 hours, it is cancelled
• Auto-reset is cancelled in approximately 4 minutes.
OUT1 proportional band setting
• Sets the proportional band for OUT1.
• OUT1 becomes ON/OFF action when set to 0 or 0.0
•
OUT2 proportional band setting
• Sets the proportional band for OUT2.
• OUT2 becomes ON/OFF action when OUT1 proportional band
•
• 0.0 to 10.0 times (multiplying factor to OUT1 proportional band)
Integral time setting
• Sets integral time for OUT1.
• Setting the value to 0 disables the function.
• Not available when OUT1 is ON/OFF action.
• Auto-reset can be performed when PD action (I=0).
• Setting range: 0 to 1000 seconds
Derivative time setting
• Sets derivative time for OUT1.
• Setting the value to 0 disables the function.
• Not available when OUT1 is ON/OFF action.
• Setting range: 0 to 300 seconds
ARW setting
• Sets ARW for OUT1.
• Available only when PID is the control action.
• Setting range: 0 to 100%
OUT1 proportional cycle setting
• Sets proportional cycle for OUT1.
• Not available for DC current output type or when OUT1 is
• Setting range: 1 to 120 seconds
OUT2 proportional cycle setting
• Sets proportional cycle for OUT2.
• Not available if the option DT is not applied or when OUT2 is
• Setting range: 1 to 120 seconds
A1 setting
• Sets action point for A1 output.
• Not available if No alarm action is selected in A1 action selection
• Refer to (Table 5.3-1).
A2 setting
• Sets action point for A2 output.
• Not available if option A2 is not applied or if No alarm action is
selected in A2 action selection.
• Refer to (Table 5.3-1).
. ,
XX.X
indicated
in turn
Heater burnout alarm setting
• Sets the heater current value for Heater burnout alarm.
• Self-holding is not available for the alarm output.
• Available only when the option W is added.
• Rating 5A : 0.0 to 5.0A Rating 10A: 0.0 to 10.0A
values revert to the former value at which AT is performed.
automatically.
0 to 1000 (2000 ), 0.0 to 999.9 ( ) or 0.0 to 100.0%
is set to 0 or 0.0.
Not available if option DT is not added or if OUT1 is ON/OFF action.
ON/OFF action.
ON/OFF action.
Rating 20A: 0.0 to 20.0A Rating 50A: 0.0 to 50.0A
0
0
10
1.0 times
200 seconds
50 seconds
50%
30 seconds or
3 seconds
3 seconds
0
0
0.0A
7
Loop break alarm action time setting
• Sets the time to assess the Loop break alarm.
• Available only when the option LA is applied.
• Setting range: 0 to 200 minutes
Loop break alarm action span setting
• Sets the temperature to assess the Loop break alarm.
• Available only when the option LA is applied.
• Setting range: 0 to 150
(Table 5.3-1)
Alarm action type Setting range
High limit alarm – (Input span) to input span ( ) *1
Low limit alarm – (Input span) to input span ( ) *1
High/Low limits alarm 0 to input span ( ) *1
High/Low limit range alarm 0 to input span ( ) *1
Process high alarm Input range low limit value to input range high limit value *2
Process low alarm Input range low limit value to input range high limit value *2
High limit alarm with standby – (Input span) to input span ( ) *1
Low limit alarm with standby – (Input span) to input span ( ) *1
High/Low limits alarm with standby 0 to input span ( ) *1
•
When input has a decimal point, the negative low limit value is –199.9, and the positive high limit
value is 999.9.
• All alarm actions except process alarms are
*1: For DC input, the input span is the same as the scaling span.
*2: For DC input, input range low (high) limit value is the same as scaling low (high) limit value.
5.4 Auxiliary function setting mode 1
Character Name, Function, Setting range Default value
Setting value lock selection
• Locks the setting values to prevent setting errors.
The setting item to be locked depends on the designation.
• When Lock 1 or Lock 2 is designated, PID Auto- tuning and
Auto-reset cannot be carried out.
•
setting items in the Auxiliary function setting mode 2. They return to their former
value after power is turned off because they are not saved in the non-volatile
memory. It is suitable to use in combination with our programmable controller
SV high limit setting
• Sets the SV high limit.
• Setting range: SV low limit to input range high limit value
SV low limit setting
• Sets the SV low limit.
• Setting range: Input range low limit value to SV high limit
Sensor correction setting
• Sets the correction value for the sensor.
• Setting range: –100.0 to 100.0
Communication protocol selection
• Selects communication protocol.
• Available only when the option C5 is applied.
• IMO protocol：
Modbus RTU mode：
Instrument number setting
• Sets the instrument number individually to each instrument when
communicating by connecting plural instruments in serial
communication.
• Available only when option C5 is added.
• Setting range: 0 to 95
Data transfer rate selection
• Selects a transfer rate to be equal to the rate of the host
computer.
• Available only when option [C5] is added.
• 2400bps:
(Unlock) : All setting values can be changed.
(Lock 1): None of the setting values can be changed.
(Lock 2): Only main setting value can be changed.
(Lock 3): All setting values can be changed. However, do not change the
(with SVTC) as this has no relation to memory life.
), 0.0 to 150.0
(
deviation setting to the main setting.
or SV low limit to scaling high limit value
or scaling low limit value to SV high limit
( ), or –1000 to 1000
，Modbus ASCII mode： ，
, 4800bps: , 9600bps: , 19200bps:
) or 0 to 1500
(
0 minutes
0
Unlock
Input range
high limit value
Input range
low limit value
0.0
IMO protocol
0
9600bps
8
Parity selection
• Selects the parity.
• Not available when the option C5 is not added or when IMO
protocol is selected in the Communication protocol selection.
• No parity:
Stop bit selection
• Selects the stop bit.
• Not available when option C5 is not added or when IMO
protocol is selected in the Communication protocol selection.
• Setting range: 1, 2
5.5 Auxiliary function setting mode 2
Character Name, Function, Setting range Default value
Input type selection
• The input type can be selected from thermocouple (10 types),
RTD (2 types), DC current (2 types) and DC voltage (4 types),
and the unit
• When changing the input from DC voltage to other inputs,
remove the sensor connected to this controller first, then change
for the input. If the input is changed with the sensor connected,
the input circuit may be broken.
K –200 to 1370
–199.9 to 400.0
J –200 to 1000
R 0 to 1760
S 0 to 1760
B 0 to 1820
E –200 to 800
T –199.9 to 400.0
N –200 to 1300
0 to 1390 :
PLC (W/Re5-26) 0 to 2315
Pt100 –199.9 to 850.0
JPt100 –199.9 to 500.0 :
Pt100 –200 to 850
JPt100 –200 to 500
4 to 20mA –1999 to 9999:
0 to 20mA –1999 to 9999:
0 to 1V –1999 to 9999:
0 to 5V –1999 to 9999:
1 to 5V –1999 to 9999:
0 to 10V –1999 to 9999:
Scaling high limit setting
• Sets scaling high limit value.
• Available only for DC inputs
•
Setting range: Scaling low limit value to input range high limit value
Scaling low limit setting
• Sets scaling low limit value.
• Available only for DC inputs
•
Setting range: Input range low limit value to scaling high limit value
Decimal point place selection
• Selects decimal point place.
• Available only for DC inputs
•
No decimal point
2 digits after decimal point
PV filter time constant setting
• Sets PV filter time constant. (If the value is set too large, it
:
affects control result due to the delay of response)
• Setting range: 0.0 to 10.0 seconds
OUT1 high limit setting
• Sets the high limit value of OUT1.
• Not available when OUT1 is ON/OFF action
• Setting range: OUT1 low limit value to 105%
(Setting greater than 100% is effective to DC current output type)
, Even parity: , Odd parity:
/ can be selected as well.
:
:
:
:
:
:
:
:
:
:
:
K –320 to 2500
–199.9 to 750.0
J –320 to 1800
R 0 to 3200
S 0 to 3200
B 0 to 3300
E –320 to 1500
T –199.9 to 750.0
N –320 to 2300
0 to 2500 :
PL-
C (W/Re5-26) 0 to 4200
Pt100 –199.9 to 999.9
JPt100 –199.9 to 900.0
:
:
Pt100 –300 to 1500
JPt100 –300 to 900
1 digit after decimal point:
:
3 digits after decimal point
:
Even parity
1
K
(–200 to 1370 )
:
:
:
:
:
:
:
:
:
:
:
:
:
:
9999
–1999
No decimal
point
0.0 seconds
100%
9
OUT1 low limit setting
• Sets the low limit value of OUT1.
0%
Not available when OUT1 is ON/OFF action.
• Setting range: –5% to OUT1 high limit value
(Setting less than 0% is effective to DC current output type)
OUT1 ON/OFF action hysteresis setting
• Sets ON/OFF action hysteresis for OUT1.
1.0
• Available only when OUT1 is ON/OFF action
• Setting range: 0.1 to 100.0
OUT2 action mode selection
• Selects OUT2 action from air, oil and water coolings.
( ), or 1 to 1000
Air cooling
• Not available when the option DT is not added or when OUT2 is
ON/OFF action
• Air cooling:
OUT2 high limit setting
• Sets the high limit value of OUT2.
, oil cooling: , water cooling:
100%
• Not available when the option DT is not added or when OUT2 is
ON/OFF action
• Setting range: OUT2 low limit value to 105%
(Setting greater than 100% is effective to DC current output type)
OUT2 low limit setting
• Sets the low limit value of OUT2.
0%
• Not available when the option DT is not added or when OUT2 is
ON/OFF action
• Setting range: –5% to OUT2 high limit value
(Setting less than 0% is effective to DC current output type)
Overlap band/Dead band setting
• Sets the overlap band or dead band for OUT1 and OUT2.
0
+ setting value: Dead band, – setting value: Overlap band
• Available only when the option DT is added
• Setting range: –100.0 to 100.0
OUT2 ON/OFF action hysteresis setting
• Sets ON/OFF action hysteresis for OUT2.
( ), or 1 to 1000
1.0
• Available only when the option DT is added
• Setting range: 0.1 to 100.0
A1 action selection
• Selects an action for A1.
No alarm action : Process high alarm :
High limit alarm :
Low limit alarm :
H/L limits alarm :
H/L limit range alarm:
A2 action selection
• Selects an action for A2.
( ), or 1 to 1000
Process low alarm :
High limit alarm w/standby :
Low limit alarm w/standby :
H/L limits alarm w/standby :
No alarm action
No alarm action
• Available only when alarm A2 is added
• Action selection and default value are the same as those of A1
action selection.
A1 action Energized/Deenergized selection
• Selects Energized/Deenergized for A1.
Energized
• Not available if No alarm action is selected in A1 action selection
• Energized:
A2 action Energized/Deenergized selection
• Selects Energized/Deenergized for A2.
Deenergized:
Energized
• Not available if alarm A2 is not added or if No alarm action is
selected in A2 action selection
• Action selection and default value are the same as those of A1
action Energized/Deenergized selection.
A1 hysteresis setting
• Sets hysteresis for A1.
1.0
• Not available if No alarm action is selected in A1 action selection
• Setting range: 0.1 to 100.0
A2 hysteresis setting
• Sets hysteresis for A2.
( ), or 1 to 1000
1.0
• Not available if alarm A2 is not added or if No alarm action is
selected in A2 action selection
• Setting range: 0.1 to 100.0
( )，or 1 to 1000
10
A1 action delayed timer setting
• Sets action delayed timer for A1.
0 seconds
When setting time has passed after the input enters the alarm
output range, the alarm is activated.
• Not available if No alarm action is selected in A1 action selection
• Setting range: 0 to 9999 seconds
A2 action delayed timer setting
• Sets action delayed timer for A2.
0 seconds
When setting time has passed after the input enters the alarm
output range, the alarm is activated.
• Not available if alarm A2 is not added or if No alarm action is
selected in A2 action selection
• Setting range: 0 to 9999 seconds
Direct/ Reverse action selection
• Selects Reverse (Heating) or Direct (Cooling) action.
• Reverse (Heating):
AT bias setting
• Sets bias value during PID auto-tuning.
Direct (Cooling):
Reverse
(Heating) action
20
• Not available for DC inputs
• Setting range:
SVTC bias setting
• Control desired value adds SVTC bias value to the value
0 to 50 (0 to 100 ) or 0.0 to 50.0 (0.0 to100.0 )
0
received by the SVTC command.
• Available only when option C5 is added
• Converted value of
20% of the rated value or
20% of the scaling range
SV2 indication selection
• Selects whether SV2 setting item is indicated or not.
No indication
• Available only when the option SM is added.
•
Output status selection when input burnout
• Selects whether OUT1 is turned OFF or not when DC input is
(No indication)， (Indication)
Output OFF
overscale or underscale.
• Available only for DC current output type with DC inputs
•
OUT/OFF key function selection
• Selects whether OUT/OFF key is used for control output
(Output OFF)， (Output ON)
OUT/OFF
function
OUT/OFF function or for Auto/Manual control function.
•
(OUT/OFF function)
(Auto/Manual control function)
Sensor correction function
This corrects the input value from the sensor. When a sensor cannot be set at a location where
control is desired, the sensor measuring temperature may deviate from the temperature in the
controlled location. When controlling with plural controllers, sometimes the temperatures measured
(input value) do not concur with the same setting value due to difference in sensor accuracy or
dispersion of load capacities. In such a case, the control can be set at the desired temperature by
adjusting the input value of sensors.
Energized/Deenergized
When [alarm action energized] is selected, the alarm output (between terminals 3-4, or 3-5)
is conducted (ON) while the alarm output indicator is lit.
The alarm output is not conducted (OFF) while the alarm output indicator is not lit.
When [alarm action deenergized] is selected, the alarm output (between terminals 3-4, or 3-5) is not
conducted (OFF) while the alarm output indicator is lit.
The alarm output is conducted (ON) while the alarm output indicator is not lit.
High limit alarm (when Energized is set) High limit alarm (when Deenergized is set)
ON
A1 hysteresis
ON
A1 hysteresis
OFF
SV setting + A1 set point
OFF
SV setting
+ A1 set point
(Fig. 5.5-1) (Fig. 5.5-2)
11
5.6 Auto/Manual control function
Name, Functions
Auto/Manual control function
• If Auto/Manual control function is selected in the OUT/OFF key function selection, Automatic or
Manual control function can be switched by pressing the key in the PV/SV display mode.
If control action is switched from automatic to manual or vice versa, balanceless-bumpless
function works to prevent sudden change of manipulated variable.
When automatic control is switched to manual control, the 1st dot from the right on the SV display
blinks, and the output manipulated variable (MV) can be increased or decreased by pressing
or key to perform the control.
By pressing the key again, the mode reverts to the PV/SV display mode (automatic control).
(Whenever the power to the controller is turned on, automatic control starts.)
5.7 Control output OFF function
Character Name, Functions
Control output OFF function
• A function to pause the control action or turn the control output of the unused
instrument of the plural units OFF even if the power to the instrument is supplied.
] is indicated on the PV display while the function is working.
[
• Once the control output OFF function is enabled, the function cannot be released
even if the power to the instrument is turned OFF and ON again.
To cancel the function, press the key again for approx. 1 second.
5.8 Output manipulated variable (MV) indication
Name and functions
Output manipulated variable indication
• In the PV/SV display mode, press the key for approx. 3 seconds.
Keep pressing the key until the output manipulated variable shows up, though the main
setting mode appears temporarily during the process.
(The SV display indicates output manipulated variable and the decimal point blinks at a cycle of
every 0.5 second). If the key is pressed again, the mode reverts to the PV/SV display.
6. Running
After the controller has been mounted to the control panel and wiring is completed, it can be started
in the following manner.
(1) Turn the power supply to the TP40A ON.
Turn the power supply to the TP40A ON.
• For approx. 3s after the power is switched ON, the sensor input character and the temperature unit
are indicated on the PV display and input range high limit value is indicated on the SV display. See
(Table 5-1). (If any other value has been set in the scaling high limit setting, the set value is indicated on
the SV display) During this time, all outputs and LED indicators are in OFF status.
•
After that, control starts indicating input value on the PV display, and main setting value on the SV display.
• While the Control output OFF function is working,
is indicated on the PV display.
(2) Input each setting value. Input each setting value, referring to “5. Setup”.
(3) Turn the load circuit power ON.
Starts the control action so as to keep the controlled object at the main setting value.
7. Action explanation
7.1 OUT1 action
Control
action
Relay contact
output
Non-contact
voltage output
DC current
output
Indication
(OUT1) Green
part : Acts ON or OFF.
Heating (Reverse) action Cooling (Direct) action
6
7
6
12V DC
7
6
7
Proportional band
SV setting
6
7
6
++
12/0V DC
7
6
7
6
7
6
0V DC
7
6
4mA DC
7
Unlit
Cycle action is performed according to deviation
++
+++
Changes continuously according to deviation
ON
OFF
Cycle action is performed according to deviation
+
Cycle action is performed according to deviation Cycle action is performed according to deviation
+
20mA DC 20 to 4mA DC
Changes continuously according to deviation
Lit Unlit
Proportional band
SV setting
6
7
6
0V DC 12V DC
7
6
4mA DC
7
6
7
6
0/12V DC
7
6
4 to 20mA DC
7
6
7
+
6
7
++
6
20mA DC
7
12
ON
OFF
Lit
7.2 EVT (Heater burnout alarm) action
Alarm action
ON
OFF
7.3 OUT1 ON/OFF action
Heating (Reverse) action Cooling (Direct)action
Control
action
Relay contact
output
Non-contact
voltage output
DC current
output
Indication
(OUT1) Green
ON
OFF
6
7
+
6
7
++
6
20mA DC
7
Lit
part: Acts ON or OFF.
7.4 Temperature alarm action
High limit alarm
Alarm
action
Alarm
output
ON
OFF
A1 set point
+ side
side
High/Low limit range alarm
Alarm
action
Alarm
output
ON
OFF
A1 set point A1 set point
High limit alarm with standby
Alarm
action
Alarm
output
ON
OFF
A1 set point
+ side
side
A1 indicator lights up when output terminals between
3 and 4 is ON, and goes out when between them is OFF.
: Alarm output terminals between 3 and 4 is ON.
: Alarm output terminals between 3 and 4 is ON or OFF.
: Alarm output terminals between 3 and 4 is OFF.
: Standby functions in this section.
Setting
Load current
Hysteresis
SV setting
SV
setting
SV
setting
SV
setting
Output
Indication
LargeSmall
6
7
6
+
0V DC12V DC
7
6
4mA DC
7
Unlit
A1 hysteresis
+ A1 set point
A1 hysteresis A1 hysteresis A1 hysteresis
A1 set point
A1 hysteresis A1 hysteresis A1 hysteresis
+ A1 set point
6
7
+
6
0V DC 12V DC
7
6
+
4mA DC
7
A1 hysteresis
ON
OFF
A1 set point SV
+ side
side
ON
OFF
ON
OFF
A1 set point
+ side
side
3
5
Hysteresis
SV setting
Low limit alarm
setting
Process high alarm
A1 set point
SV
setting
6
7
+
6
7
6
+
20mA DC
7
+ A1 set point
ON
OFF
LitUnlit
3
5
UnlitLit
High/Low limits alarm
A1 hysteresis
ON
OFF
A1 set pointA1 set point
ON
OFF
High/Low limit alarm with standbyLow limit alarm with standby
ON
OFF
A1 set point SV
setting
Process low alarm
A1 set point
SV
setting
A1 set point
13
7.5 OUT2 (Heating/Cooling control) action
Control
action
Relay contact
output (OUT1)
ON
Heaing
action
OFF
6
7
Cycle action is performed according to deviation.
Heating P-band (Cooling P-band)
SV setting
66
7
ON
(Cooling
action)
OFF
Non-contact
voltage output
(OUT1)
DC current
output (OUT1)
Non-contact
relay output
(OUT2)
Indication
(OUT1) Green
Indication
(OUT2) Yellow
12V DC 12/0V DC 0V DC
Cycle action is performed according to deviation.
20mA DC
Changes continuously according to deviation.
Lit
Unlit Lit
20 to 4mA DC
3
5
Cycle action is performed according to deviation.
4mA DC
Unlit
7.7 OUT2 (Heating/Cooling control) action (When setting Overlap band)
r
r
Control action
ON
Heating
action
OFF
Relay contact
output (OUT1)
Cycle action is performed according to deviation.
Non-contact
relay output
(OUT2)
Indication
(OUT1) Green
Indication
(OUT2) Yellow
Lit
Unlit
Heating P-band
Cooling P-band
Overlap
band
(Cooling
action)
SV setting
6
7
3
5
Cycle action is performed according to deviation.
6
7
3
5
6
7
3
5
Unlit
ON
OFF
Lit
: Acts ON (lit) or OFF (unlit).
: Represents Heating control action.
: Represents Cooling control action.
8. PID auto-tuning of this controller
In order to set each value of P, I, D and ARW automatically, fluctuation is applied to the controlled object
to get an optimal value. One of 3 types of fluctuation below is automatically selected.
(1) When the difference between the setting value and processing temperature is large as the
temperature rises.
When AT bias is set to 20
Temperature 20
than the setting value
Setting value
(3) Controlled by the PID constant
(4)
( ), fluctuation is applied at the temperature 20 lower than the setting value.
( ) lowe
(1) Calculating PID constant
(2) PID constant calculated
set by auto-tuning.
Temperature
(4) AT bias value
(2) When the control is stable or when control temperature is within ±20
AT starting point
(1)
(2) (3)
Time
( ) of setting value.
Fluctuation is applied at the setting value.
Setting value
(1) Calculating PID constant
(2) PID constant calculated
(3) Controlled by the PID constant
Temperature
set by auto-tuning.
AT starting point
(1)
(2)
(3) When the control temperature is 20
Time
(3)
( ) or higher than the setting value.
When AT bias is set to 20 ( ), fluctuation is applied at the temperature 20 ( ) higher than the
setting value.
(1) Calculating PID constant
Temperature
Temperature 20 ( ) highe
than the setting value
(2) PID constant calculated
(3) Controlled by the PID constant
Setting value
set by auto-tuning.
(4)
(4) AT bias value
AT starting point
Time
(1)
(2)
(3)
15
9. Specifications
9.1 Standard specifications
Mounting method : Flush
Setting method : Input system using membrane sheet key
Display PV display : Red LED 4 digits, character size 10.2 x 4.9 mm (H x W)
SV display : Green LED 4 digits, character size 8.8 x 4.9 mm (H x W)
Accuracy (Setting and Indication):
Thermocouple : Within
whichever is greater
However R, S inputs, 0 to 200
B input, 0 to 300
K, J, E, T, N inputs, less than 0
RTD : Within
within
DC current : Within
DC voltage : Within
Input sampling period : 0.25 seconds
Input Thermocouple : K, J, R, S, B, E, T, N, PL-
(However, B input: External resistance, 40
RTD : Pt100, JPt100, 3-wire system
Allowable input lead wire resistance (10
DC current : 0 to 20mA DC, 4 to 20mA DC
Input impedance: External shunt resistor 50
Allowable input current (50mA or less)
DC voltage : 0 to 1V DC Input impedance (1M
Allowable input voltage (5V or less)
Allowable signal source resistance (2k
: 0 to 5V DC, 1 to 5V DC, 0 to 10V DC Input impedance (100k
Allowable input voltage (15V or less)
Allowable signal source resistance (100
OUT1 output
Relay contact : 1a, Control capacity 3A 250V AC (resistive load)
1A 250V AC (inductive load cosø=0.4)
Electrical life, 100,000 times
Non-contact voltage (For SSR drive): 12
DC current : 4 to 20mA DC, Load resistance, maximum 550
A1 output
Action : ON/OFF action
Hysteresis : 0.1 to 100.0
Output : Relay contact 1a
Control capacity, 3A 250V AC (resistive load)
Electrical life, 100,000 times
Control action
PID action (with auto-tuning function)
PI action: When derivative time is set to 0
PD action (with auto reset function): When integral time is set to 0
P action (with auto reset function): When derivative and integral times are set to 0.
ON/OFF action: When proportional band is set to 0 or 0.0
OUT1 proportional band : 0 to 1000
(ON/OFF action when set to 0 or 0.0)
Integral time : 0 to 1000s (OFF when set to 0)
Derivative time : 0 to 300s (OFF when set to 0)
OUT1 proportional cycle : 1 to 120s (Not available for DC current output type)
ARW : 0 to 100%
OUT1 ON/OFF action hysteresis: 0.1 to 100.0
OUT1 high limit setting : 0 to 100% (DC current output type: –5 to 105%)
OUT1 low limit setting : 0 to 100% (DC current output type: –5 to 105%)
Circuit isolation configuration
1
Power
Power
supply
2
3
A1
4
5
EVT (A2, LA, W) or OUT2 (DT)
0.2% of each input span 1digit, or within 2 (4 ),
(400 ): Within 6 (12 )
(600 ): Accuracy is not guaranteed
(32 ): Within 0.4% of input span 1digit
0.1% of each input span 1digit, or
1 (2 ), whichever is greater
0.2% of each input span 1digit
0.2% of each input span 1digit
, C(W/Re5-26) External resistance, 100 or less
or less)
or less per wire)
or greater)
or less)
or less)
+2
V DC maximum 40mA (short circuit protected)
0
( ), or 1 to 1000
(2000 ), 0.0 to 999.9 ( ) or 0.0 to 100.0%
( ), or 1 to 1000
11
12
13
14
CT
input
SV2
Isolated
Commu-
nication
OUT1
13
14
CPU
15
Input
16
6
7
8
9
10
or greater)
When OUT1 is non-contact voltage output or DC current output, between OUT1 and communication
and between OUT1 and SV2 are non-isolated and isolation test must not be carried out between them.
Isolation resistance : 10M
or greater at 500V DC
Dielectric strength : 1.5kV AC for 1minute between input terminal and power terminal
1.5kV AC for 1minute between output terminal and power terminal
Supply voltage : 100 to 240V AC 50/60Hz, 24V AC/DC 50/60Hz
Allowable voltage fluctuation 100 to 240V AC: 85 to 264V, AC 24V AC/DC: 20 to 28V AC/DC
Power consumption : Approx. 8VA
Ambient temperature
: 0 to 50 (32 to 122 )
Ambient humidity : 35 to 85%RH (no condensation)
Weight : Approx. 200g
External dimension : 48 x 48 x 95mm (W x H x D)
Material : Flame resistant resin (Case)
Color : Light gray (Case)
Attached functions : [Setting value lock], [Sensor correction], [Auto/manual control switching],
[Input burnout indication
]
Thermocouple and RTD inputs
If the input value exceeds the Indication range high limit value, the PV display blinks “
and if the input value exceeds the Indication range low limit value, the PV display blinks “
If the input value exceeds the Control range, OUT1 and OUT2 are turned off (for DC current
output type, OUT1 low limit value and OUT2 low limit value)
(However, for manual control, it outputs the preset manipulated variable
.
)
Input Input range Indication range Control range
KT
K
J
RS
B
E
N
PL-
C(W/Re5-26)
–199.9 to 400.0 –199.9 to 450.0 –205.0 to 450.0
–199.9 to 750.0
–199.9 to 850.0 –209.0 to 850.0
–200 to 1370 –250 to 1420 –250 to 1420
–320 to 2500
–370 to 2550 –370 to 2550
–200 to 1000 –250 to 1050 –250 to 1050
–320 to 1800
–370 to 1850 –370 to 1850
0 to 1760 –50 to 1810 –50 to 1810
0 to 3200
–50 to 3250 –50 to 3250
0 to 1820 –50 to 1870 –50 to 1870
0 to 3300
–50 to 3350 –50 to 3350
–200 to 800 –250 to 850 –250 to 850
–320 to 1500
–370 to 1550 –370 to 1550
–200 to 1300 –250 to 1350 –250 to 1350
–320 to 2300
–370 to 2350 –370 to 2350
0 to 1390 –50 to 1440 –50 to 1440
0 to 2500
–50 to 2550 –50 to 2550
0 to 2315 –50 to 2365 –50 to 2365
0 to 4200
–50 to 4250 –50 to 4250
–199.9 to 850.0 –199.9 to 900.0 –210.0 to 900.0
Pt100
–200 to 850 –210 to 900 –210 to 900
–199.9 to 999.9 –199.9 to 999.9 –211.0 to 1099.9
–300 to 1500
–318 to 1600 –318 to 1600
–199.9 to 500.0 –199.9 to 550.0 –206.0 to 550.0
JPt100
–200 to 500 –206 to 550 –206 to 550
–199.9 to 900.0 –199.9 to 999.9 –211.0 to 999.9
–300 to 900
–312 to 1000 –312 to 1000
DC current and voltage inputs (4 to 20mA DC, 0 to 20mA DC, 0 to 1V DC, 0 to 5V DC, 1 to 5V DC, 0 to 10V DC)
If input value exceeds Indication range high limit value, PV display blinks “
value exceeds the Indication low limit range, the PV display blinks “
”.
”, and if input
If input value exceeds the Control range, OUT1 and OUT2 are turned ON or OFF, depending on
which has been selected in the [Output status selection when input burnout] (for DC current output
type, OUT1 high or low limit value, OUT2 high or low limit value). However, for manual control, it
outputs the preset manipulated variable.
Indication range : [Scaling low limit value – Scaling span x 1%] to [Scaling high limit value
“
+Scaling span x 10%]
(If the input value exceeds the range –1999 to 9999, the PV display blinks
” or “ ”)
Control range : [Scaling low limit value – Scaling span x 1%] to [Scaling high limit value
+Scaling span x 10%]
DC input burnout: When DC input is burnt out, PV display blinks “
and 1 to 5V DC inputs, and “
” for 0 to 1V DC input.
” for 4 to 20mA DC
17
”,
”.
For 0 to 20mA DC, 0 to 5V DC and 0 to 10V DC inputs, the PV display
indicates the corresponding value with which 0mA or 0V is inputted.
[Burnout]
output type, OUT1 low limit value, OUT2 low limit value) and PV display blinks “
[Self-diagnosis]
The CPU is monitored by a watchdog timer, and when any abnormal status is found on the
CPU, the controller is switched to warm-up status
[Automatic cold junction temperature compensation] (Only thermocouple input type
This detects the temperature at the connecting terminal between the thermocouple and the instrument
and always keeps it set to the same status as when the reference junction is located at 0
[Power failure countermeasure] The setting data is backed up in the non-volatile IC memory.
[Warm-up indication]
After the power supply to the instrument is turned on, the sensor input character and temperature
unit are indicated on the PV display and rated scale high limit value is indicated on the SV display
for 3 seconds
For DC current and voltage inputs, the scaling high limit value is indicated
Accessories included: Screw type mounting bracket 1 set, Instruction manual 1 copy
9.2 Optional specifications
Alarm 2 (A2) (Option code: A2
The output terminals will be common when the options [W] and [LA] are added togethe
Action : ON/OFF action
Hysteresis : 0.1 to 100.0
Output : Relay contact 1a
Loop break alarm (Option code: LA)
When MV (manipulated variable) is maximum or minimum and when the PV does not change as much
as the preset span within the Loop break alarm assessment time, the alarm is activated.
This also detects the breaking status on the loop such as heater burnout, sensor burnout or actuator
trouble.
The output terminals will be common if the options [W] and [A2] are applied together.
Setting range : Loop break alarm action time, 0 to 200minutes
Output : Relay contact 1a
Heater burnout alarm (including sensor burnout alarm) (Option code: W)
Monitors heater current with CT (current transformer), and detects burnout.
The output terminals will be common if the options [LA] and [A2] are applied with it.
This option cannot be applied to DC current output type.
Rating : 5A [W(5A)], 10A [W(10A)], 20A [W(20A)], 50A [W(50A)] (Must be specified)
Setting range : 5A [W(5A)], 0.0 to 5.0A (Off when set to 0.0)
Setting accuracy : Within
Action : ON/OFF action
Output : Relay contact 1a
Heating/Cooling control (Option code: DT)
The specification of Heating side is the same as that of OUT1.
OUT2 proportional band : 0.0 to 10.0 times OUT1 proportional band (ON/OFF action when set to 0.0)
OUT2 integral time : The same as that of OUT1.
OUT2 derivative time : The same as that of OUT1.
OUT2 proportional cycle : 1 to 120 seconds
Overlap band/Dead band setting range:
selection)
Output: Non-contact relay output 0.3A 250V AC
Cooling action mode selection function:
Serial communication (Option code: C5)
When this option is added, the option [SM] cannot be added with it.
The following operations can be carried out from the external computer.
Thermocouple, RTD inputs: –100.0 to 100.0
DC current, DC voltage inputs: –1000 to 1000 (The placement of the decimal point follows the
One cooling action can be selected from Air cooling (linear characteristic), Oil cooling (1.5th power o
the linear characteristic) and Water cooling (2nd power of the linear characteristic) by key operation
.
.
CT (Current transformer) CTL-6S 1 piece(for rating 5A, 10A, 20A)
CTL-12-S36-10L1 1 piece (for rating 50A)
)
( ), or 1 to 1000
Control capacity, 3A 250V AC (Resistive load)
Electrical life, 100,000 times
Loop break alarm action span, 0 to 150
Control capacity, 3A 250V AC (Resistive load)
Electrical life, 100,000 times
10A [W(10A)], 0.0 to 10.0A (Off when set to 0.0)
20A [W(20A)], 0.0 to 20.0A (Off when set to 0.0)
50A [W(50A)], 0.0 to 50.0A (Off when set to 0.0)
5% of the rated value
Control capacity, 3A 250V AC (resistive load)
Electrical life, 100,000 times
( )
18
( ), 0.0 to 150.0 ( ), 0 to 1500
.
”.
)
(32 ).
r.
t When the thermocouple or RTD input is burnt out, OUT1 and OUT2 are turned off (for DC curren
,
f
.
(1) Reading and setting of the main setting value, PID values and each setting value
(2) Reading of the input value and action status
(3) Change of the functions
Communication interface : Based on EIA RS-485
Communication method : Half-duplex start stop synchronous
Data transfer rate : 2400, 4800, 9600, 19200bps (Selectable by key)
Parity : Even, Odd and No (Selectable by key)
Stop bit : 1 and 2 (Selectable by key)
Communication protocol : IMO protocol, Modbus RTU, Modbus ASCII (Key selectable)
Number of units connectable : Maximum 31 units to 1 host computer
Communication error detection: Double detection by parity and checksum
Digital external setting : The SV from the programmable controller (with the option SVTC) can be
When the data from the programmable controller exceeds the SV high
limit or low limit value, the TP40A ignores the value, and performs the
control with the former value.
The control desired value adds SVTC bias value to the value received
by the SVTC command.
SV1/SV2 external selection (Option code: SM)
SV1 or SV2 can be selected by the external contact.
When this option is added, the option [C5] cannot be added with it.
Contact open between 13-14: SV1, Contact closed between 13-14: SV2
Contact current: 6mA
digitally transmitted to the TP40A (with the option C5).
(The Setting value lock of the TP40A must be set to Lock 3)
10. Troubleshooting
If any malfunctions occur, refer to the following items after checking the power supply to the controller.
10.1 Indication
Problem
PV display is indicating [ ].
[ ] is blinking on the PV
display.
[ ] is blinking on the PV
display.
Presumed cause and solution
• Control output OFF function is working.
Press the key for approx. 1 second to release the function.
• Thermocouple, RTD or DC voltage (0 to 1V DC) is burnt out.
Change each sensor.
How to check sensor burnout
[Thermocouple]
If the input terminal of the instrument is shorted, and if nearby
room temperature is indicated, the instrument should be normal
and sensor may be burnt out.
[RTD]
If approx. 100
between A-B of the instrument and between B-B is shorted, then
if nearby 0
and sensor may be burnt out.
[DC voltage (0 to 1V DC)]
If the input terminal of the instrument is shorted, and if scaling low
limit value is indicated, the instrument should be normal
and the signal wire may be burnt out.
• Is the input terminal of thermocouple, RTD or DC voltage (0 to 1V
DC) securely mounted to the instrument input terminal?
Connect the sensor terminals to the instrument input terminals securely.
• Check if input signal source for DC voltage (1 to 5V DC) or DC
current (4 to 20mA DC) is normal.
How to check each signal wire
[DC voltage (1 to 5V DC)]
If the input to the input terminals of the instrument is 1V DC and
if scaling low limit value is indicated, the instrument should be
normal and the signal wire may be disconnected.
[DC current (4 to 20mA DC)]
If the input to the input terminals of the instrument is 4mA DC and
if scaling low limit value is indicated, the instrument should be
normal and the signal wire may be disconnected.
• Is input signal wire for DC voltage (1 to 5V DC) or DC current (4 to
20mA DC) securely connected to the instrument input terminals?
Connect the signal lead wire to the instrument input terminals securely.
• Is polarity of thermocouple or compensating lead wire correct?
Do codes (A, B, B) of RTD agree with the instrument terminals?
of resistance is connected to the input terminals
(32 ) is indicated, the instrument should be normal
19
The PV display keeps indicating
the value which was set in the
Scaling low limit setting.
The indication of PV display is
abnormal or unstable.
The PV display is indicating
[
10.2 Key operation
• Unable to set the SV, P, I, D,
proportional cycle or alarm
setting
• The values do not change by
].
Problem
, key operation.
Wire them properly.
• Check if the input signal source for DC voltage (0 to 5V DC,
0 to 10V DC) and DC current (0 to 20mA DC) is normal.
How to check each signal wire
[DC voltage (0 to 5V DC, 0 to 10V DC)]
If the input to the input terminals of the instrument is 1V DC and
if the value corresponding to 1V DC is indicated, the instrument
should be normal and the signal wire may be disconnected.
[DC current (0 to 20mA DC)]
If the input to the input terminals of the instrument is 1mA DC and
if the value corresponding to 1mA DC is indicated, the instrument
should be normal and the signal wire may be disconnected.
• Are the input lead wire terminals for DC voltage (0 to 5V DC, 0 to
10V DC) or DC current (0 to 20mA DC) securely mounted to the
instrument input terminals?
Mount the sensor terminals to the instrument input terminals securely.
• Is sensor input or temperature unit ( or ) correct?
Select the proper sensor input and temperature unit (
• Sensor correcting value is unsuitable. Set the value suitably.
• Is the specification of the sensor correct?
Set the sensor to the proper specification.
• AC leaks into the sensor circuit. Use an ungrounded type sensor.
• There may be a piece of equipment producing inductive
interference or noise near the controller.
Keep the equipment producing inductive interference or noise
away from the controller.
• Internal memory is defective.
Contact our agency or us.
• Setting value lock (Lock 1 or Lock 2) is designated.
Release the lock designation.
• During PID auto-tuning or auto-reset.
In the case of PID auto-tuning, cancel the auto-tuning.
It takes approximately 4 minutes until auto-reset is finished.
Presumed cause and solution
or ).
The setting indication does not
change in the input range even if
the , keys are pressed,
and unable to set the value.
10.3 Control
Problem
Temperature does not rise. • Sensor is out of order. Replace the sensor.
The control output remains
ON status.
The control output remains
OFF status.
• If you have any inquiries, please consult our agency or the shop where you purchased the unit.
• SV high or low limit value in Auxiliary function setting mode 1 may
be set at the point the value does not change.
Set the proper value while in the Auxiliary function setting
mode 1.
Presumed cause and solution
• Sensor or control output terminals are not securely mounted to
the instrument input terminals.
Mount the sensor or control output terminals to the instrument
input terminals securely.
• The wiring of sensor or control output terminals is incorrect.
Connect it properly.
• OUT1 or OUT2 low limit value is set to 100% or greater
in Auxiliary function setting mode 2.
Set the value appropriately.
• OUT1 or OUT2 high limit value is set to 0% or less in
Auxiliary function setting mode 2.
Set the value appropriately.
20
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