Thank you for purchasing Toho Electronics’ TTM-339 series.
Before using the products, thoroughly read this manual for a better understanding of them.
Ensure to store this manual and use it whenever needed.
Contents
1.Precautions on the use of the products・ P2
2.Parts indication and Installation ・・P4
3.Terminal connection diagram・・・・・・ P7
4.Terms and various functions ・・・・・・ P8
5.Flow of mode change operation and run operation P18
6.Measurement range and indicator resolution P28
7.List of models・・・・・・・・・・・・・ P29
8.Standard specifications ・・・・・・・・ P29
9.Maintenance and Inspections ・・・・・・ P31
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1.Precautions on the use of the products
Danger
Improper handling of the equipment
may cause fatality or serious injury for
an impending reality.
Caution
Improper handling of the equipment
may cause injury or physical damage
on it.
Warning
Improper handling of the equipment
may cause fatality or serious injury.
Reminder
Care should be taken for ensuring
safety.
General caution, warning or
prohibition without
particularity.
Instruction on ground connection
for the equipment with safety
grounding terminals.
Hazard of pinched fingers on a
particular portion of the
equipment.
Possible injury caused by touching a
particular portion of the equipment
under specific conditions.
Unspecific behaviors
of general users.
Hazard of injury such as an electric
shock due to disassembling or
modification of the equipment
Hazard of an electric shock
under specific conditions
Hazard of injury due to high
temperature under specific conditions
Hazard of burst under
particular conditions.
Improper wiring to the equipment may cause a failure, such as fire. Upon completion of wiring, ensure to verify the
proper wiring before turning on electricity.
Do not turn on electricity until all wiring is complete. Do not touch portions of high voltages such as power supply
terminals, as an electric shock may be resultant.
Install appropriate protective circuits externally if a failure or abnormality of the equipment may seriously affect related
systems.
Do not use the equipment out of the specified range, as it may fail or catch fire.
Do not under any circumstance to modify or disassemble the equipment, as a failure may be caused, resulting fire or an
electric shock.
Do not use the equipment in ambience of flammable or explosive gases.
Do not use the vacant terminals for wiring.
Do not use a pointed object to operate keys.
Do not turn on the power supply until wiring is fully complete in order to prevent an electric shock, failure or
malfunctioning. For replacing a component connected on the equipment, ensure to turn off the power supply. For
turning back on the power supply, do so after all wiring is complete.
Ensure not to trap heat in the space surrounding the equipment in order to provide sufficient heat release.
Do not put a metal piece or similar inside the equipment. A fire, an electric shock or failure may be caused.
The equipment is designed for instrumentation. For its use in environments of high voltages or intense noises, take
appropriate measures on the side of user’s equipment.
The equipment is designed for controlling physical values, such as temperatures, on general industrial facilities. Do not
use it for subjects of control that may seriously affect human life.
Ensure to read this manual before using the equipment. Take care to understand the following for the safe use of the equipment.
Ensure this manual to be in hands of a person using the equipment.
★ Precautions on safety
Alarms are defined and categorized into either one of four groups in this manual, depending on degrees of importance or risk
in terms of the safe use of the equipment or prevention of accident or damage on the equipment. For each alarm, symbol is
assigned as shown below.
★ Alarm symbols
An alarm categorized in the group of Caution may still yield to serious result, depending on circumstances.
Any symbol for the four groups intends to raise user’s attention for important description. Carefully observe it.
Warning
Caution
- 2 -
Turn off the power supply before cleaning the equipment, and wipe it with a soft dry cloth. Do not use thinners, as they
may cause deformation or discoloration of the equipment.
The equipment may cause radio disturbances in domestic settings. User is required to take appropriate measure.
Ensure to tighten terminal screws at specified torque. Insufficient tightening the screws may cause an electric shock or
fire.
Ensure to observe precautions listed in this manual for the use of the equipment.
Reprinting or duplicating this manual is prohibited.
This manual may be revised without prior notice.
Abbreviation
Term
PV
Present value
SV
Setting value
AT
Auto-tuning
MV1
Primary operating amount
MV2
Secondary operating amount
CT
Current transformer
0 1 2 3 4 5 6
0 1 2 3 4 5 6
7 8 9
Minus
Period
Slash
7 8 9 - . /
A B C D E F G
A B C D E F G
H I J K L M N
H I J K L M N
O P Q R S T U
O P Q R S T U
V W X Y Z
V W X Y Z
Precaution regarding Export Trade Control Ordinance
Investigation on client or application by an appropriate party is required so that the equipment is not used for mass destruction
weapons and such (military application, military facilities, etc.).
Notation convention in this manual
★ Summary notation
Abbreviations in alphabetical characters are used for the diagrams and text in this manual. Some major examples are as
follows.
- 3 -
2. Parts indication and Installation
No.
Segment character
Content
①
PV (5 digits in the upper row)
Displays PV, etc.
②
SV (5 digits in the lower row)
Displays SV, etc.
Fixed to 0 during a stop.
Displays “TIME” during a timer run.
③
Pattern digit (2 digits in the lower row left)
Displays the pattern No., etc. presently in selection.
④
Step digit (2 digits in the lower row right)
In a stop: Displays the number of steps of the pattern
presently in selection.
In a run: Displays the step No., etc. presently in progress.
⑤
Operating status (lower row center; 6 segments)
Indicates the program operating status.
No.
Name
Content
A
RUN/STOP key
Used for run start/stop, temporary stop, etc.
B
DSP.CHG key
Used for display switchover, etc.
C
Dig.MOVE key
Shifts the set digit leftward during setting.
D
AUTO/MAN key
Switches over MANU/AUTO.
E
RESET key
Used for screen return, etc.
F
MODE key
Used for changing a setting item, etc.
G
key
Used for decreasing a numerical value, etc.
H
key
Used for increasing a numerical value, etc.
RUN/STOPDSP.CHGD i g..MOVEAUTO/MAN
RESETM O D E
▽△
RUN
OUT
EV1
EV2
EV3
EV4
TS1
TS2
TS3
TS4
AUTO
MANU
AT
END
TIME
SV
PV
PTN
STP
① ② ③ ④ ⑤
D
G H F
E
C
B
A
2.1 Full panel face
2.2 Segment display section
2.3 Key
- 4 -
2.4 Lamp display section
Lamp character
Content
PTN
Lights up while a pattern in display.
STP
Lights up while a step in display.
RUN
Lights up during a program run.
OUT
Lights up at the heating output ON.
EV1
Lights up at occurrence of Event 1.
EV2
Lights up at occurrence of Event 2.
EV3
Lights up at occurrence of Event 3.
EV4
Lights up at occurrence of Event 4.
TS1
Lights up at Time Signal 1 ON.
TS2
Lights up at Time Signal 2 ON.
TS3
Lights up at Time Signal 3 ON.
TS4
Lights up at Time Signal 4 ON.
AUTO
Lights up during an automatic run.
MANU
Lights up during a manual run.
AT
Lights up during an auto-tuning.
END
Lights up at the output ON while End Signal in use.
TIME
Lights up at the time being set.
2.5 Lamp display section
2.6 Outer Dimensions
- 5 -
2.7 Precautions on installation
Warning
Ensure to turn the power supply off before beginning removal or reinstallation of the equipment in order to
prevent an electric shock or equipment failure.
★ Ambient temperature and humidity (the equipment to be used in the specified range as listed below)
(1) Temperature range: 0 - 50 °C
(2) Humidity range: 20 - 90% PH (no dew condensation allowed)
(3) Installation gradient: Base plane ± 10 degrees
★ Do not install the equipment in the following places.
(1) Where temperature abruptly changes to generate dew
(2) Where corrosive or flammable gases are generated
(3) Where water, oil, steam or chemicals splatter
(4) Where vibration or noise is directly applied
(5) Where dusty or salty ambience, or many iron scraps is present
(6) Where direct sunlight is received
(7) Where circuits may negatively be affected by static electricity, noise or magnetism
(8) Where direct warm or cool air is received from an air-conditioner
★ Precautions on installation
(1) Provide sufficient space for ventilation so that the ambient temperature does not rise to 50 °C or higher. In case that the
temperature of 50 °C or higher is suspected, use a fan or air-conditioner to cool the ambience.
Take care that no cold air flows directly on the equipment.
(2) Do not install the equipment on a device that may generate large heat, such as heater and transformer.
(3) Install the equipment away as much distant as possible from high-voltage devices, power lines or power equipment.
(4) Do not block off the ventilation opening on the equipment. Ensure a sufficient gap between stacked units of equipment.
2.8 How to install or remove the equipment
★ Installation on a panel
(1) Make an opening on the panel.
(2) Insert the equipment into the opening.
(3) Install the mounting attachment from behind the panel.
(Ensure that the equipment is securely fixed)
* Conduct wiring after the equipment is installed.
* Turn on the power after the wiring.
★ Removal from the panel
(1) Turn off the power.
(2) Disconnect the wiring.
(3) Insert a flat-head screw driver into the clearance
formed between gabs on the equipment and attachment.
Turn the screw driver clockwise or counterclockwise to
dislocate the gabs to remove the attachment from
the equipment.
(4) Remove the equipment from the panel.
* Ensure to conduct removal work after
turning off the power.
- 6 -
3. Terminal connection diagram
Power supply
100 to 240 VAC
① X
A
Communications RS-485
⑬
EV4
Open collector
output
② B ⑭
TS1
Not in use
③
Pattern 1
No-voltage
contact input
⑮
TS2
OUT1
(Relay/SSR/4 -20
mADC)
C
④
Pattern 2
⑯
TS3
NO
⑤
Pattern 3
⑰
TS4
OUT2(None/Relay/
SSR/
4 -20 mADC)
C
⑥
Pattern 4
⑱
TIME
NO
⑦
RUN/RDY
⑲
COM
Not in use
⑧
Operation
switchover
⑳
CT input
Relay contact
output
EV1
⑨
Step feed
EV2
⑩
COM
Sensor input
* See below.
EV3
⑪
END signal
Relay contact
output
COM
⑫ Y
COM
RTD
TC/10 mV
Current/voltage
b
B
A
Warning
Do not turn on the power until all wiring is complete in order to prevent an electric shock
or equipment failure.
Precautions on wiring
★ For inputs from a thermocouple, use the specified wires or compensating leads.
★ For inputs from a resistance temperature detector, use wires that the wire resistance of leads is small and no resistance difference
★ Provide input signal lines distant from power supply lines, power lines or load lines so as not to affect input signal lines with
★ Wire the power supply for instruments such that they do not receive noises from the power supply for power devices.
★ For the power supply, use and twist wires that cause less voltage drop.
★ For the equipment being activated, it takes about 4 seconds after its power turns on. Use delay relays when using the
★ The equipment is not attached with power supply switch fuses. Separately install fuses in proximity of the equipment, as
★ Use crimping terminals that match screw sizes.
is present among 3 wires (3-wire type).
noise induction.
The use of a noise filter is recommended in case that the equipment is vulnerable to noises.
Take care the following when a noise filter is used.
◎ Install the noise filter as close to a temperature controller as possible.
Wire the instruments in as short a distance as possible to output lines (secondary side) of the noise filter and power
terminals for the temperature controller.
◎ Isolate the noise filter input line (primary side) from its output line (secondary side).
High-frequency elements of noises may be induced, resulting in no provision of much noise attenuation effect as expected,
in case of input and output wires being close one another, such as being bundled together or installed in a same duct or
tube.
◎ Wire the grounding wire of the noise filter in as short a distance as possible.
A long grounding wire is equivalent to insert of an inductance, resulting in deteriorated high-frequency characteristics.
◎ Before installing the noise filter, peel off the paint applied on a mounting plate of the noise filter as appropriate, in order to
reduce the contact resistance between the noise filter and equipment housing.
equipment for generating signals for interlocking circuits.
needed.
◎ Recommended fuse rating: Rated voltage of 250 V and rated current of 1 A
◎ Size of crimping terminal: Terminal width of 6 mm or smaller
For Pt100 (resistance temperature detector), use identical wires of low lead resistance and no resistance difference among
3 wires.
4. Terms and Various Functions
4.1 Program run
* The following number of steps is fixedly set, depending on the number of patterns.
To make control, SV is changed parallel to the temperature and time set for each pattern.
If a setting is made to the lower limit within [a setting range - 1] (“----” to be displayed) in the temperature setting for
each step, steps following the said step is ineffective and no setting parameter is displayed.
The pattern run ends at one step prior to the step set as “----.”
Neither the step temperature nor the step time in a run can be changed.
If the setting temperature of the step 1 is set at SLL for a PV start, the time of step 1 is effective and a timer run begins.
(The normal PV start begins with the step 2.)
“TIME” is displayed in the SV display frame.
If the setting temperature for all steps is 0, setting a temperature for a step results in the next step automatically being set
to the same temperature (only at key operation).
If the step time is set above the upper limit within the setting range (“~~~~~” to be displayed), the step continuously runs
at the setting temperature.
Each pattern repeats for the number of times that has been executed. When the setting is set to “0”, it will continue to
repeat until it is stopped with key operation. (max. 9999 times)
During a run, the TIME output is ON.
For display during the program run, see Section 5.3.2 “Auto run (normal mode).”
The following is displayed upon termination of the program.
4.2 Step feed/step return
Holding the “” key pressed for 3 seconds during a run results in the step feed to transfer to the next step.
Holding the “” key pressed for 3 seconds results in the step return to transfer to the step one previous to the current
step.
In the case of the external drive signal selection being ON, the step feed is executed when open of the step feed DI
changes to closed.
Only the timer is reset when the step return is executed at step 1 (or the leading step).
If the step feed is executed at the step for the endless setting, END is established.
*When the External Drive Signal Selection is set to ON, Step Forward/Reverse with key operation will not be
effective.
4.3 Elapsed time increase/decrease
During a program run, pressing the / key on the elapsed time screen results in an increase/decrease of the elapsed
time.
The unit of the elapsed time is minute. Counting the number of seconds continues.
The change range of the elapsed time is 0 to [the setting time in a run - 1].
The change range of the elapsed time for a wait zone is 0 to [the setting time in a run + the wait time - 1].
Execution of an increase/decrease in the wait zone results in an increase/decrease of the elapsed time; however, setting
the elapsed time below the setting time results in a return to the normal step run but not to the wait zone.
This function is ineffective for an end signal.
- 8 -
4.4 Wait function
Wait zone
Wait zone
Present stepNext step
SVPV
In a wait
As PV enters into the wait zone, a transfer to
the next step is made.
Even if PV does not enter into the wait
zone, a transfer to the next step is
made when the wait time elapses.
For the current step transferring to the next step, the next step does not begin if PV has not reached the wait zone
(similarly, if PV has overreached) after the step time elapsed.
However, if the wait time elapses, the next step begins at that point.
The above operation is executed by selecting 0 to 4 for each step, or by setting value for 1 to 4.
Selecting 0 indicates no function.
In the case of [the wait zone setting = 0], in-a- wait is effective until PV goes beyond SV.
4.5 Three-zone PID function
Numerical values of P, I, D and PC are switched over at each of the low, intermediate and high temperatures.
The ranges of the three zones are as follows:
- Low temperature (PID No. 1): SLL to intermediate point 1
- Intermediate temperature (PID No. 2): Intermediate point 1 to intermediate point 2
- High temperature (PID No. 3): Intermediate point 2 to SLH
4.6 Auto tuning function
Auto tuning starts at each of low, intermediate and high temperatures.
Auto tuning starts when the temperature at which the auto tuning is to be performed is set on each startup screen and the
RUN/STOP key is pressed or by an Auto tuning start command of the communication.
During the auto tuning, AT-1 (to 3) and SV are alternately displayed in the SV display digit ,and ATALL and PV are
alternately displayed in the PV display digit.
Re-pressing the RUN/STOP key results in a stop of the auto tuning.
If the auto tuning has not terminated 3 hours after its start, an AT error is established and the run stops, displaying
“ERR2.”
Attempting an auto tuning during an automatic run results in first a temporary stop and then start of the auto tuning.
During a manual run, the auto tuning is not possible.
4.7 PV start/SV start
At a start of the program run after selecting the PV start and SV start, the start SV indicates the following:
PV start:
The run starts from the ramp step of upward slope in which the measurement temperature is included.
In addition, the run starts from the elapsed time, of which amount is assumed to elapse to come to the start point.
The calculation is made with the start point of 0C /0 digit.
For below 0C /0 digit, the calculation is made with the elapsed time of 0 minute.
SV start: The program run starts from the SV start temperature setting.
- 9 -
4.8 Time signal output
ON time
OFF time
Output
ON time
Output
At starting each step, the time signals 1 to 4 are turned on upon elapse of the time set on the ON delay timer.
Then, the output is turned off upon elapse of the time set on the OFF delay timer.
During the time signal output ON, corresponding lamps of TS1 to TS4 light up.
Select the function selection among 0 to 5 of TS 1 to 4 at each step; if either one of 1 to 4 is selected, the above
operation is performed with the setting; if 0 is selected, no function is available; if 5 is selected, ON is always set
during the selection step.
If the time is set backward by using the or key, even after elapse of time, the output returns to the one
corresponding to the point at which the time set backward and time counting starts at that point, i.e., in the middle
of the way.
Example: If the elapsed time is returned by 5 minutes by using the key 3 minutes after the OFF delay
terminates, the output turns on and the OFF delay counts for 2 minutes.
△ Step start
4.9 Time output
During a program run, the Time output is always ON as in-a-run signal output.
4.10 In-a-run signal output/end signal output selection function
The use purpose of one relay output is selected from either in-a-run signal output or end signal output.
4.10.1 When selecting the in-a-run signal output
During a run, the relay output is always ON as in-a-run signal output.
4.10.2 When selecting the end signal output
At termination of the program run, the output as the end signal output is turned on or off according to the
following flow.
If the setting is above the maximum value within the setting range (“~~~~~” to be displayed), the output remains
turned on until the reset status described in Section 5.3.1 is established.
Also, the END lamp lights up.
△ Termination of the program run
4.11 DI (external input)
Operation including run can be performed via DI through the external drive signal selection.
For the function of each DI, see Sections 4.10.1 to 4.10.4.
No operation is performed for [external drive signal = OFF].
4.11.1 Run/reset DI
The following operation is performed when ON continues for 2 seconds after the external contact open (OFF)
changes to the external contact closed (ON):
During a run: The run stops.
During a stop: A run starts.
4.11.2 Hold DI
The following operation is performed when ON continues for 2 seconds after the external contact open (OFF)
changes to the external contact closed (ON):
During a run: The run stops momentarily.
During a momentary stop: The run restarts.
4.11.3 Step feed DI
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