Toho Electronics TRV1-C015 User manual

TOHO ELECTRONICS INC.
Thyristor-type Single-phase Power Regulator (Zero Cross Control Mode)
TRV1-C015/TRV1-C025
Operation Manual
Thank you for purchasing our product. Before using this product, please read this manual carefully to
understand its contents. Please keep this manual and use it whenever necessary. This document is
intended for those with a basic knowledge of electrical and control circuits.
Safety Precautions
★ Meaning of Description
󱛺Warning
Improper handling may cause fire, loss of life, or physical injury.
󱛺Caution
Improper handling may cause damage to the product and its peripherals.
󱛺Warning
1. Risk of Electrocution
●Always disconnect the product from the main power source before doing any wiring work.
●Make sure that the cover is attached while the product is energized.
●Do not open the case whether or not the product is energized.
●Do not touch the product while it is energized.
●Do not touch the terminal right after the power switch is turned OFF even if the product is not energized. (There is a
risk of electrocution by the charged electricity in the condenser.)
2. Risk of Fire and Burn
●Do not touch the radiation fin while the product is energized or right after the power switch is turned OFF.
●Do not use the product in a place that is exposed to flammable and explosive gases.
●Do not leave combustible items near the place where the product is installed.
●Take necessary safety measures, such as external fuse and breaker, against overcurrent, short circuit, and
breakdown.
●Make sure to properly attach the wire to the terminal by fastening them with the designated torque. (Failure to do so
may cause abnormal heating of the terminal.)
3. Others
●Do not use this product for purposes beyond the scope of its specification.
●Be careful not to drop the product on your body.

󱛺Caution
●Do not soak the product in water, cleaning solvent, chemical solution, and such other similar liquids.
●Do not insert metal pieces and conductive materials into the product.
●Do not disassemble or alter the product.
●Select the electric wire with appropriate thickness according to the flowing current.
●Do not drop the product. Do not apply abnormal vibration or impact to the product.
●Use a power supply within the rated frequency range.
●Avoid using the product under the following environments to prevent the product from breakdown, malfunction, and
characteristic degradation:
・A place that is exposed to water, oil, and chemicals
・Under the atmosphere of corrosive gas
・A place with high temperature and humidity
・A place with dust and metal powder
●When energized, the product produces heat. To release such heat outside, a heat sink is attached. Blocking the convective
flow produced by the heat release at the heat sink may cause fire or breakdown due to abnormal heating. Arrange
peripherals and parts in such a way that allows the heat release of the product.
●Make sure that the wiring polarity and the applied voltage are correct.
●The load to be applied must be within the rated range.

Precautions upon Usage
●Figures, sample values, and sample screens in this
document are used for an easier understanding of the
content and shall not compensate for any action that
resulted therefrom.
●We shall not be held liable for the following damages
that may be suffered by the user or third party:
・Damage caused by the effect of the operation of
this product
・Damage caused by the unexpectable defect of this
product
・Damage caused by the use of a counterfeit of this
product
・All other indirect damages
●Regular maintenance is required to use the product
continuously and safely. Some of the parts of this
product have a service life and/or may degrade over the
years.
●The contents of this document may change in the future
without prior notice. We are sure about the quality of the
document. However, please inform us if you are
dissatisfied with the content or if you notice anything
about the content.
●Unauthorized posting and reproduction of a part or all of
the contents of this manual are prohibited.
●If the product is to be used in combination with other
products, please check the standards, rules, and
regulations that need to be complied with. We shall not
be held liable for any noncompliance of the product
unless these are implemented.
●In case the product is used for the following purposes,
use the product within its capacity and take the
necessary safety measures, such as the use of a safety
circuit, to minimize risk in case of breakdown:
a) To be used outdoors or under potential chemical
contamination or electrical disturbance, or to be
used under the condition or environment that is not
covered in this operation manual or delivery
specification
b) Nuclear power plant control system, incineration
system, railways, aviation, vehicle maintenance,
medical equipment, safety devices, and other
facilities that conform to the rules and regulations
of government and individual sectors
c) Systems, machines, and devices that may be
hazardous to human life and assets
d) A facility that requires high reliability, such as gas,
electricity, and water supply systems and systems
that continuously run for 24 hours
e) Other purposes that conform to items a) to d)
above that require a high level of safety
Important Reminder Regarding Export Trade Control
Order
Please investigate the client and purpose of usage to make
sure that the product will not be used as a weapon of mass
destruction (e.g., for military purposes and military facilities).
Be extra careful with reselling to prevent the product from
being exported illegally.
Proper Ways of Usage
1. Dimensions and Mounting
（1）Dimensional Outline Drawing

（2）Panel Machining Diagram
（3）Tightening Torque for the Panel
Mount the panel with a tightening torque of 1.18 to
1.47N・m.
（4）Installation
・Vertical Installation
・Horizontal Installation
・
* Use the product within 70% of the rated load
current.
3. Wiring and Connection
(1) Sample Connection with Temperature Controller
(2) Sample Connection with External Volume
(Manual Setting)
* Volume shall be provided by the customer.
* The product cannot be used as an inclination
setting unit in combination with the temperature
controller.
①：Input Terminal (1)
②：Input Terminal (2)
③：Volume Terminal (3)
④：Volume Terminal (4)
⑤：Output Terminal (T1)
⑥：Output Terminal (T2）
⑦：Power Terminal (T3)
The input impedance of the product is 250Ω. ③ 5V is
outputted from the volume terminal. Therefore, the input
voltage of the product shall be 5V × (250Ω ÷ (External
Resistance Value + 250Ω)). Select the value of the
resistance of an external volume according to the required
amount of power for the adjustment.
The figure of the sample connection shows the usage of 2kΩ
external volume, which allows the adjustment of input
voltage between 1VDC and 5VDC with an external volume.

(3) Wiring of Input
a) Size of Electric Wire
・Single Wire
:
0.14 to 0.5mm2
・Twisted Wire
:
0.14 to 0.5mm2
・AWG
:
20 to 26
b) Tip Treatment
c) How to Insert
Insert the electric wire after pushing the
connector lever inside as shown in the figure
above. Pushing the electric wire inside with
force without pushing the lever may lead to
contact failure or disconnection.
(4) Wiring of Output
a) Type of Crimp Terminal
Terminal
No.
Terminal
Name
φA
φB
⑤/⑥
Output
Terminal
(T1/T2)
9.5mm
or lower
4.3mm
or
higher
⑦
Power
Terminal
(T3)
6.5mm
or lower
3.7mm
or
higher
b) Tightening Torque
Terminal
No.
Terminal
Name
Max.
Value
Recommended
Value
⑤/⑥
Output
Terminal
(T1/T2)
1.47N・
m
1.18 to 1.37N・
m
⑦
Power
Terminal
(T3)
0.78N・
m
0.64 to 0.74N・
m
4. Precaution from the Viewpoint of the Design of
Electrical Circuit
（1）Protection Circuit of the Output Side
a) This product is composed of
semiconductors and may break down by
surge voltage and current. Upon such,
most of its mode of breakdown is “short
mode (breakdown by a short circuit)”
where control is no longer possible under
the condition of which the load is turned
ON. Therefore, in case of a product
abnormality, the failsafe circuit must be
designed in such a way that it disconnects
the load circuit not by the product itself but
by a safety device, such as a breaker and
a contactor.
b) In case a short-circuit current or
overcurrent is flown into the output side of
the product, it will destroy the built-in
output element.
Please add the quick-blow fuse within the
range below to the load circuit.
Isurge > Iff > Ir
Isurge
:
One-cycle Surge ON
Current of the Product
Iff
:
Fusing Current of Quick-
blow Fuse
Ir
:
Rush Current of Load

（2）Precaution on the Type of Load
a) In the case of a small current load and
sensitive load, leakage current during
OFF may prevent the product from turning
itself OFF. In such a case, reduce the
leakage current during OFF that flows into
the load by connecting the shunt
resistance (Rp) in parallel to the load.
Shunt resistance (Rp) can be calculated
by the formula below.
Shunt Resistance (Rp) < IR × RL / ILEK –
IR
IR: Load OFF Current
ILEK: Leakage Current at Open Circuit
b) This product is designed to control the
resistance load. In case of a load with high
inductance, such as transformer, make
sure to verify the normality of the
operation with the actual device to avoid
malfunction during the commutation due
to the delay of the current phase against
the voltage.
（3）Explanation of the Movement
a) This product controls the output, which is
proportional to input (4 to 20mADC), by
the cycle control mode. It can also be
connected to the external volume, which
allows the user to use the product without
the analog input.
b) “Soft Up” and “Soft Down” are functions
that limit the sudden change of the output
power by changing the output gradually
whenever the input setting changes.
（4）Others
This product is not designed for a series connection
to improve voltage endurance and for parallel
connection to increase electric capacity.
Specifications
1. Rated Value
Item
TRV1-C015
TRV1-C025
Maximum Input
Current
24mA DC
Maximum Load and
Power Voltages
264Vrms AC
Maximum Load
Current
15Arms AC
25Arms AC
1 Cycle Surge ON
Current
146A
250A
Insulation
Resistance
100MΩ or higher (500VDC)*
Voltage Endurance
2500V AC rms, 1 minute *
Working Ambient
Temperature
-20 to +60℃ (without freezing and
condensation)
Storage
Temperature
-30 to +70℃ (without freezing and
condensation)
* Between input (①, ②), volume (③, ④) - output (⑤, ⑥),
power supply (⑦) - case
2. Electrical Characteristic
(Ta=25℃)
Item
TRV1-C015
TRV1-C025
Input Impedance
250Ω±20%
Input Movement Current
Range
4 to 20mA DC
Range of Load and Power
Voltages
85 to 264Vrms AC
Range of Load Current
100mA AC rms-Max. Load
Current *1
Voltage Drop During Output
ON
1.5V AC rms or lower (at
maximum power output)
Leakage Current at Output
OFF
9mA AC rms or lower (load
voltage of 200V rms,
50Hz)
Power Adjustment Range
0 to 100%
Load Power Voltage
Frequency Range
50Hz/60Hz(Automatic
switching)
47 to 53Hz/57 to 63Hz
Consumption
Current
(Between ⑥
and ⑦)
For Analog
Input
If Volume is
Used
5.1mA rms (100V rms,
50Hz)
7.0mA rms (100V rms,
50Hz)
Soft Up and Down Time
Approx. 0.5 to 40 seconds
*2
Mass
Approx. 260g
*1 Conduction angle will get narrow under fine current
load. Please check the actual usage with the actual
unit.
*2 Turn the top face volume clockwise to maximize and
turn it counterclockwise to minimize. The rated
value of “Approximately 0.5 to 40 seconds” refers
to the time duration before the power changes from
0% to 100% or vice versa.

3. Input Current - Output Power Characteristic
4. Load Reducing Curve (if 3 units are mounted close to
each other)
First Edition: June 2007
TOHO ELECTRONICS INC.
Main Office: 2-4-3 Nishihashimoto, Midori-ku,
Sagamihara-shi, Kanagawa 252-0131, Japan
Phone: [phone] FAX: [phone]
E-Mail: [email protected]
Website: https://www.toho-inc.com/english/index.html