Instruction Manual
AC VOLTAGE/CURRENT TRANSDUCER

Wiring precautions

SC SERIESSC1E5 2010.07

PrefaceThank you for purchasing the AC voltage, AC current Transducer SC series.
This manual contains instructions for the mounting, functions, operations and notes
for operating the SB series.
For model confirmation and unit specifications, please read this manual carefully
before starting operation.
To prevent accidents arising from the misuse of this instrument, please ensure
the operator receives this manual.

Notes• This instrument should be used in accordance with the specifications described inthe manual.
If it is not used according to the specifications, it may malfunction or cause a fire.
• Be sure to follow the warnings, cautions and notices. If they are not observed,
serious injury or accidents may occur.
• The contents of this instruction manual are subject to change without notice.
• Care has been taken to assure that the contents of this instruction manual are correct,
but if there are any doubts, mistakes or questions, please inform our sales department.
• This instrument is designed to be installed on a DIN rail. Measures must be takento ensure that power terminals or other high voltage sections cannot be touched.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos Co., Ltd. is not liable for any damage or secondary damage(s)incurred as a result of using this product, including any indirect damage.

Safety Precautions (Be sure to read this before using units)
The safety precautions are classified into categories: “Warning” and “Caution”.
Depending on circumstances, procedures indicated byCaution may cause
serious results, so be sure to follow the directions for usage.

Caution• Do not leave wire remnants in the instrument, because they could cause a fireor a malfunction.
When wiring terminals, use solderless terminals with an insulation sleeve andcrimping pliers applicable to terminals.
• This instrument has no built-in power switch or circuit breaker.
It is necessary to install them near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)• For an AC power supply, be sure to use exclusive terminals as described in thismanual. If the AC power supply is connected to incorrect terminals, the unit willburn out.
• For a DC power supply, do not confuse polarity when wiring.
• Keep the input/output wires and power line separate.

Operation and maintenance precautions

Caution• Do not touch live terminals. This may cause electric shock or problems in operation.
• Turn the power supply to the instrument OFF before cleaning.
Working on or touching the terminal with the power switched ON may result insevere injury or death due to Electric Shock.
• Use a soft, dry cloth when cleaning the instrument.
(Alcohol based substances may tarnish or deface the unit.)

1. Model1.1 Model
SCPT

Input

which may lead to dangerous conditions andWarning Procedurescause death or serious injury, if not carried out properly.
which may lead to dangerous conditions andCaution Procedurescause superficial to medium injury or physical damage or may• To prevent an electric shock or fire, only Shinko or other qualified service
personnel may handle the inner assembly.
• To prevent an electric shock, fire or damage to the instrument, parts replacement
may only be undertaken by Shinko or other qualified service personnel.

Safety precautions• To ensure safe and correct use, thoroughly read and understand this manual
before using this instrument.
• This instrument is intended to be used for industrial machinery, machine tools
and measuring equipment. Verify correct usage after consulting purpose of use
with our agency or main office. (Never use this instrument for medical purposeswith which human lives are involved.)• External protection devices must be installed, as malfunction of this product could
result in serious damage to the system or injury to personnel.
Also proper periodic maintenance is required.
• This instrument must be used under the conditions and environment described inthis manual. Shinko Technos Co., Ltd. does not accept liability for any injury, lossof life or damage occurring due to the instrument being used under conditions
not otherwise stated in this manual.
Caution with respect to Export Trade Control Ordinance
To avoid this instrument from being used as a component in, or as being utilized in themanufacture of weapons of mass destruction (i.e. military applications, militaryequipment, etc.), please investigate the end users and the final use of this instrument.
In the case of resale, ensure that this instrument is not illegally exported.

OutputPower supply

01
2

AC current transducer (W25×H100×D128mm)
0 to 5A AC
0 to 1A AC
0 to 6A AC
Other
4 to 20mA DC (Load resistance 600 or less)0 to 1mA DC (Load resistance 10k or less)
1 to 5V DC(Load resistance 1k or more)
0 to 5V DC(Load resistance 1k or more)
0 to 10V DC (Load resistance 1k or more)
Specified range
85 to 264V AC/85 to 143V DC20 to 30V DC
40 to 60V DC

SCCT01020304

Input

Output010203040506

Power supply

2. Name and functions of sections
SCPT, SCCT

Installation precautions

1, 2: Input terminals

CautionThis instrument is intended to be used under the following environmental
conditions (IEC61010-1): Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable or explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of -5 to 55 (23 to131 ) that does not change rapidly, and no icing• An ambient non-condensing humidity of 35 to 85%RH• 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 cancome into direct contact with the unit
• If the SC series is installed within a control panel, the ambient temperature ofthis unit must not exceed 55 (131 ). Otherwise the life of electronic
components (especially electrolytic capacitors) of the unit will be shortened.
Note: Avoid setting this instrument on or near flammable material even though
the case of this instrument is made of flame-resistant resin.

01201
02
03
04
05
06

degrade or damage the product, if not carried out properly.

Warning

AC voltage transducer (W25×H100×D128mm)
0 to 150V AC
0 to 300V AC
0 to 86.6V AC
0 to 110V ACOther
4 to 20mA DC (Load resistance 600 or less)0 to 1mA DC (Load resistance 10k or less)
1 to 5V DC(Load resistance 1k or more)
0 to 5V DC(Load resistance 1k or more)
0 to 10V DC (Load resistance 1k or more)
Specified range
85 to 264V AC/85 to 143V DC
20 to 30V DC
40 to 60V DC

01020304
05

3 (+), 4 (–): Power terminals
Span adjustment potentiometer
Zero adjustment potentiometer
5 (+), 6 (–): Output terminals

7: Ground terminal(Fig 2-1)

3. Mounting

4. Wiring

3.1 External dimensions (Scale: mm)Use solderless terminals with an insulation sleeve in which an M4 screw fits andcrimping pliers. (Fig. 4-1), (Fig. 4-2)
SCPT
SCCT
12?
?

Uu?

12Power S1supply

2-core shielded wirePowersupplyOutputA+
B-

2-core shielded wire
OutputBEGround(Fig. 3.2-1)• Be sure to use commercially available fastening plates at both ends of the unit
if it is in a position susceptible to vibration or shock.

• Do not confuse the top and bottom of this unit.
• When mounting to or removing the unit from the DIN rail, the units must be
slanted a little.
Therefore do not mount any other instruments within a space of 50mm at theupside and downside from the unit, considering wiring space and heat radiation.
When group mounting several units close together, ensure that 5mm or more ofopen space is kept on the right and left side.
(1) Mounting and removal to/from the DIN rail
• Mounting to the DIN railFirst, hook 1 of the unit on the upper side of the DIN rail.
Second, making 1 part of the unit as a support, fit the lower part of the unit
to the DIN rail. The unit will be completely fixed to the DIN rail with a “Click”
sound. (Fig. 3.2-2)
Fix the unit, using end plates at both ends of the unit.

(1) Ground one side of the VT and CT of the secondary side for safety.
(For low voltage circuits, grounding is not required.)(2) For the output signal wiring, use 2-core shielded wire to reduce noise.
(3) Be sure to ground the earth wire for safety.
(4) Keep wires (input, output, power supply) to this unit away from other wires
which may make noise.
(5) Do not confuse polarity and phase sequence, referring to the diagram above.
When removing the CT of the input, short both ends of the CT, then remove it.
Lead wire solderless terminal
Use a solderless terminal with an insulation sleeve in which an M4 screw fits
as shown below.
Solderless
Manufacturer
ModelTorqueterminal
Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.
Ring type Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.

Y type4.3mm(Fig. 4-3)

Phillips-headscrewdriver(2) Surface mounting
When mounting this unit with screws, insert the provided mounting block,then fix the unit securely using two M4 screws.

4.3mm

The output of this unit has been already adjusted before shipping. No adjustment
is necessary when use follows ordered Input/Output specifications.
However, in the case of fine adjustment or calibration between connected units,adjust the value following the procedures described below.

(Fig. 5-1)

2

1.25Y-4N
VD1.25-YS4A 0.6N•m
Max.
R1.25-4
0.8N•m
V1.25-4

5. Adjustment

1(Fig. 3.2-2)(Fig. 3.2-3)• Removal from the DIN rail
Insert a flat blade screwdriver into the release lever 2 , and pull it down.
The lock to the DIN rail will be released, then remove the unit from the DIN rail.
Be sure to hold onto the unit or it will drop to the ground. (Fig. 3.2-3)(Fig. 4-2)

6.4mm or less

23mm or more

Recommended fastening plate:
Manufacturer
Model
OMRON Corp.
End plate: PFP-M
IDEC Corp.
Fastening plate:
BNL6
Panasonic Electric Fastening plate:Works Co., Ltd.
ATA4806

7.5mm or more

35 0.1mm

GroundS2

E

8mm or less

Notice• Mount the DIN rail laterally.
• The following shows a DIN rail corresponding to the SC series. (Fig. 3.2-1)

Load side

2A+?

(Fig. 4-1)
(Fig. 3.1-1)

LS1

Ground

3.2 Mounting to the DIN railCT1Ground
S2?

Kk1
2

Load sideV VTv• Connect measuring equipment (digitalmultimeter, etc) which can read output
value correctly, to output terminals.
• Remove the potentiometer cap, and use
a small Phillips-head screwdriver foradjustment.
• Start adjustment more than 15 minutes
after power is turned on.
• Output value increases when turning thepotentiometer clockwise.
• Approx. 3 to 5% of output value can beadjusted.

SCCT, SCPT (zero/span adjustment method)(1) Input “zero”, then adjust the output value so that it can be a value corresponding
to “zero”, by turning the potentiometer for zero adjustment, while viewing theoutput value (digital multimeter indication).
(2) Input the span value, then adjust the output value so that it can be the value
corresponding to the span value, by turning the potentiometer for span adjustment,
while viewing the output value (digital multimeter indication).
(3) Input zero and span value again, and check the output value (digital multimeterindication).
(4) If Output value does not correspond to zero or span input value, repeat steps from(1) to (3) until output corresponds to the input value.

Inquiry
Mounting block
Unit case

For any inquiry about this unit, please contact the vendor where you purchased theunit or our agency after checking the following.
(e.g.)• Model -------------------- SCCT-0101-1• Serial number ---------- No.123456
In addition to the above, please let us know the details of malfunction, if any, andthe operating conditions.

SHINKO TECHNOS CO., LTD.
Insert the block.
(Fig. 3.2-4)

OVERSEAS DIVISION

Reg. Office : 2-5-1, Senbahigashi, Minoo, Osaka, JapanURL: http://www.shinko-technos.co.jp
Tel : +81-72-727-6100
E-mail: overseas@shinko-technos.co.jp
Fax: +81-72-727-7006