Daiichi Electronics SQLC-110L User manual

SQLC-218-090
INSTRUCTION MANUAL
POWER LINE SUPER MULTI-METER
SQLC-110L
[ 3φ4W ANALOG OUTPUT ]
HARDWARE MODEL G

SQLC-218-090
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Thank you for your purchase of our product.
Read this instruction manual carefully before installation, wiring, and using this product.
Safety concerns
Environment and conditions of usage
Please be sure to use this product in a place that meets the following conditions.
In places that do not meet this condition, it may cause malfunction or failure and product life decline.
Within the range of ambient temperature -10 to +55 ℃, humidity 85% RH or more.
Place free of dust, corrosive gas, salt and oily smoke. (Corrosive gas:SO2
/
H2S, etc.)
Location that is not affected by vibration and shock.
Location that is not affected by external noise.
Altitude 1000m or less.
If this unit directly measures an inverter output of cycle control, SCR phase angle control or PWM control,
an error may increase due to its operation principle.
The precautions at the case of using by outdoor panel.
These products are not a dustproof construction, waterproof construction, and splash proof construction.
Please avoid the place with much dust. Moreover, please install in the place which requires neither rain
nor waterdrop.
Please do not install in the place where sunlight hits directly.
Discoloration and degradation of a name plate, and cover is deformed by the surface temperature rise.
Installation and wiring
Installation and wiring, refer to the instruction manual, please be conducted by engineers.
And, please observe the following notes.
Please wire after the connection diagram is checked.
Please forbid a hot line work.
Please use the size of the electric wire that is suitable for conducting current.
Please securely tighten the terminal screws. Please make sure that forgotten tightening
of the terminal screw is not.
Preparation before use
At the case of connect this product to the main power supply directly, please put the suitable fuse to the outside.
This product must be set before use. Reading this instruction manual, please set correctly.
About dew condensation
If the temperature and humidity of an installation change rapidly when a product is a non-energization, the
waterdrop by dew condensation may adhere to a display inner side. (The display filter and the LCD surface
stick and the pattern of the shape of a circle or an ellipse occur.)
This phenomenon is not trouble. It will disappear, if a control power supply is applied and about 2 hour passes.
Maintenance
Inspection of energized is dangerous.
There is no parts to be replaced on a regular inspection.
Please wipe off lightly with the dry soft cloth. When it wipes with the damp cloth or the dry cloth strongly, a
surface is damaged. And, the character of a name plate may disappear.
Please do not use the organic solvent, chemicals, cleaners, etc., such as an alcohol, for cleaning.
The liquid crystal display (LCD) may light during cleaning on the LCD face. However, this phenomenon is caused by
the static electricity that may be produced in the filter, and it does not show any trouble.
Leave the unit as it is for a while, and the display goes out due to natural discharge.
Do not press the LCD face strongly, otherwise it may be broken. When the filter has been pressed, it may touch the
LCD face to stain the LCD face. However, this phenomenon does not show any trouble, but it is caused by a change
of the ambient environment or the like. The LCD face may be restored to its original condition after a while during
the use as it is.

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Storage
Please be storage in a place that meets the following conditions.
Within the range of ambient temperature -20 to +70 ℃.
The average temperature (day) 40 ℃ or less.
Place free of dust, corrosive gas, salt and oily smoke.
Location that is not affected by vibration and shock.
The aluminum electrolytic capacitor is used for a product. Please do the energization of the power
supply within one year after shipment.
Countermeasures against troubles
If the product has failed, we can repair pick up the product.
Proper disposal
Please dispose of this product as industrial waste (noncombustible).
Mercury parts and a nickel-cadmium battery are not used for this product.
Warranty period
The warranty period of this product is for one year after supplying the appointed place.
Operation
Be careful with the following cautions during use.
Use the input within the rated range. Be careful since negligence of this caution may cause troubles of
the unit.
There is a function to hold the maximum value and the minimum value with a measurement factor in this product.
A blackout is guaranteed and this value isn't also cleared by a power supply reset. However, the minimum value
may be updated in case input is not applied to a power up. For this reason, in order to make the past minimum
value hold by powering on, please apply input within 1 second after switching on a power supply.
The maximum value, a minimum value measurement factor
Measurement factor Maximum value
measurement
Minimum value
measurement
Voltage,Current,Demand current,Active power,Demand active power,
Reactive power,Apparent power,Power factor,Frequency ○ ○
Harmonic (Distortion factor ,Effective value ,Content) ○ ×
Be careful not to touch any terminal when power is applied to the unit.
Don’t disassemble or modify this unit without any previous permission of our company, otherwise
the warranty does not apply to the unit any more. Also, modifications may cause troubles, a
fire, or other accidents. For specifications change, etc., please contact us.
Please forbid a hot line work.

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Setting
This unit requires setting and confirmation of the measuring range, etc. before use.
Wrong setting, if any, causes malfunction of the unit. If setting should be wrong, neither measurement nor output
becomes correct. Carefully read the instruction manual before setting the unit.
Default setting
The default settings are as specified below at the delivery time. Please set according to a use condition.
The unit will be delivered with your specified setting values, if so specified.
① Voltage, current input (1/2)
№ Setting item 3φ4W
110/√3V input 220/√3V input 440/√3V input
1 Display combination
Pattern Pattern 1
Main monitor A(L2)
Sub-monitor (Left) V(L1L2)
Sub-monitor (Center) W
Sub-monitor (Right) Wh
Bar graph A(L2)
2 Alarm output
(1)
Alarm 1
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
Alarm 2
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
3 Demand detection
Demand
current
Upper limit value 1200A
Interval 0 second
Demand
active
power
Upper limit value OFF
Interval 0 second
Operation form Operating system according with bimetallic type.
Power-factor operation form Instant measurement
4 Harmonic detection
Current
Distortion-factor upper limit OFF
5th conversion content rate
upper limit OFF
n-th content
rate
Factor 5th
Upper limit OFF
Voltage
Distortion-factor upper limit OFF
5th conversion content rate
upper limit OFF
n-th content
rate
Factor 5th
Upper limit OFF
5th conversion detection characteristics Inverse-time-delay mode
Average value time limit 0 minute
5 Instant measurement
detection
Voltage upper limit value OFF
Voltage lower limit value OFF
6 Backlight Action AUTO
Brightness 3(Middle)
7 Measurement range
Voltage range 440V 220V 440V
Current range 1500A
Current display peculiar sensitivity 1500A
Active power polarity One-side swing
Active power (apparent power) range 1200kW (1200kVA) 600kW (600kVA) 1200kW (1200kVA)
Reactive power range 600kvar 300.0kvar 600kvar
Power-factor range LEAD 0.500‐1.000‐LAG 0.500
Frequency range 45.0‐65.0Hz

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① Voltage, current input (2/2)
№ Setting item 3φ4W
110/√3V input 220/√3V input 440/√3V input
8 Analog output
(1)
Output factor 1 A(L2)
Output factor 2 V(L1L2)
Output factor 3 W
Output factor 4 cosφ
Output peculiar
sensitivity
Current 100.0%
Active power
(Apparent power) 100.0%
Reactive power 50.0%
Low input cut OFF
9 Pulse output
(1)
Output 1 Factor Wh
Pulse unit 10kWh/p 1kWh/p 10kWh/p
Output 2 Factor Wh
Pulse unit 10kWh/p 1kWh/p 10kWh/p
10 External operation
input (1)
Input 1 function Alarm reset
Input 2 function Max./Min. reset
11 Measurement display
ON/OFF
Voltage ON
Current ON
Active power ON
Reactive power ON
Power-factor ON
Frequency ON
Watt-hour of power receiving ON
Watt-hour of power transmission ON
var-hour of power receiving ON
var-hour of power transmission ON
Harmonic current ON
Harmonic voltage ON
Apparent power ON
12 Input circuit Input circuit change 3φ4W (3VT,3CT)
Input voltage (2) 110V 220V -
13 Measurement Dead band 0.0%
Tidal current measurement General measurement
14 Analog output specification (2)(3) 1‐5V
15
Analog output
adjustment
(1)
Output 1 Bias adjustment 0.0%
Span adjustment 100.0%
Output 2 Bias adjustment 0.0%
Span adjustment 100.0%
Output 3 Bias adjustment 0.0%
Span adjustment 100.0%
Output 4 Bias adjustment 0.0%
Span adjustment 100.0%
Note(1) A setting item is not displayed in case there is no corresponding option.
Note(2) If an input-voltage setting is changed, a voltage range will return to initial value.
(110/√3V setting:440V,220/√3V setting:220V)
Rated voltage is the setting item of the product of 110/√3V,220/√3V sharing.
A setting item is not displayed as 440/√3V product.
Note(3) A setting item is not displayed if analog output is except DC0‐5V (or DC1‐5V) specification,
And analog output insulation product does not display a setting item.

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② Current input
№ Setting item 3φ4W
1 Display combination
Pattern Pattern 15
Main monitor A(L2)
Sub-monitor (Left) A(L1)
Sub-monitor (Center) A(L3)
Sub-monitor (Right) A(N)
Bar graph A(L2)
2 Alarm output
(4)
Alarm 1
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
Alarm 2
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
3 Demand detection Demand
current
Upper limit value 1200A
Interval 0 second
4 Harmonic detection
Current
Distortion-factor upper limit OFF
5th conversion content rate
upper limit OFF
n-th content
rate
Factor 5th
Upper limit OFF
5th conversion detection characteristics Inverse-time-delay mode
Average value time limit 0 minute
5 Backlight Action AUTO
Brightness 3(Middle)
6 Measurement range Current range 1500A
Current display peculiar sensitivity 1500A
7 Analog output
(4)
Output factor 1 A(L2)
Output factor 2 A(L1)
Output factor 3 A(L3)
Output factor 4 A(N)
Output peculiar sensitivity Current 100.0%
Low input cut OFF
8 External operation
input (4)
Input 1 function Alarm reset
Input 2 function Max./Min. reset
9 Measurement display
ON/OFF
Current ON
Harmonic current ON
10 Input circuit Dead band 0.0%
11 Analog output specification (4)(5) 1‐5V
12
Analog output
adjustment
(5)
Output 1 Bias adjustment 0.0%
Span adjustment 100.0%
Output 2 Bias adjustment 0.0%
Span adjustment 100.0%
Output 3 Bias adjustment 0.0%
Span adjustment 100.0%
Output 4 Bias adjustment 0.0%
Span adjustment 100.0%
Note(4) A setting item is not displayed in case there is no corresponding option.
The external operation input constitutes initial value with an alarm-output option.
It becomes the next function in case there is no alarm-output option.
Input 1 function:Max. / Min. reset, Input 2 function:Measurement factor change.
Note(5) A setting item is not displayed if analog output is except DC0‐5V (or DC1‐5V) specification,
And analog output insulation product does not display a setting item.

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③ Voltage input
№ Setting item 3φ4W
110/√3V input 220/√3V input 440/√3V input
1 Display combination
Pattern Pattern 16
Main monitor V(L1L2)
Sub-monitor (Left) V(L2L3)
Sub-monitor (Center) V(L3L1)
Sub-monitor (Right) Hz
Bar graph V(L1L2)
2 Alarm output
(6)
Alarm 1
Factor V
Reset form AUTO
Contact delay time 0 second
Test -
Alarm 2
Factor V
Reset form AUTO
Contact delay time 0 second
Test -
3 Harmonic detection
Voltage
Distortion-factor upper limit OFF
5th conversion content rate
upper limit OFF
n-th content
rate
Factor 5th
Upper limit OFF
5th conversion detection characteristics Inverse-time-delay mode
Average value time limit 0 minute
4 Instant measurement
detection
Voltage upper limit value OFF
Voltage lower limit value OFF
5 Backlight Action AUTO
Brightness 3(Middle)
6 Measurement range Voltage range 440V 220V 440V
Frequency range 45.0‐65.0Hz
7 Analog output
(6)
Output factor 1 V(L1L2)
Output factor 2 V(L2L3)
Output factor 3 V(L3L1)
Output factor 4 Hz
Low input cut OFF
8 External operation
input (6)
Input 1 function Alarm reset
Input 2 function Max./Min. reset
9 Measurement display
ON/OFF
Voltage ON
Frequency ON
Harmonic voltage ON
10 Input circuit Input circuit change 3φ4W (3VT)
Input voltage (7) 110V 220V -
11 Measurement Dead band 0.0%
12 Analog output specification (6)(8) 1‐5V
13
Analog output
adjustment
(6)
Output 1 Bias adjustment 0.0%
Span adjustment 100.0%
Output 2 Bias adjustment 0.0%
Span adjustment 100.0%
Output 3 Bias adjustment 0.0%
Span adjustment 100.0%
Output 4 Bias adjustment 0.0%
Span adjustment 100.0%
Note(6) A setting item is not displayed in case there is no corresponding option.
The external operation input constitutes initial value with an alarm-output option.
It becomes the next function in case there is no alarm-output option.
Input 1 function:Max. / Min. reset, Input 2 function:Measurement factor change.
Note(7) If an input-voltage setting is changed, a voltage range will return to initial value.
(110/√3V setting:440V,220/√3V setting:220V)
Rated voltage is the setting item of the product of 110/√3V,220/√3V sharing.
A setting item is not displayed as 440/√3V product.
Note(8) A setting item is not displayed if analog output is except DC0‐5V (or DC1‐5V) specification,
And analog output insulation product does not display a setting item.

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Content
Safety concerns ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 1
1. Product outline ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 8
1.1 Usage of product ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 8
1.2 Features of product ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 8
2. The name and function of each part ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 9
3. Preparation
3.1 Installation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 10
3.2 Connections ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 11
4. Operation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 12
4.1 The screen change and function by switch operation ・・・・・・・・・・・・・・・・・・・・・・・・・ 13
4.2 The kind of display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14
4.2.1 Measurement display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14
4.2.2 Alarm detection display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 17
4.2.3 Setting display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 19
4.3 Operation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 20
4.3.1 The main monitor display-element change ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 20
4.3.2 Phase (line) display change ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 20
4.3.3 Harmonic measurement display change ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 21
4.3.4 Watt-hour enlarged display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 21
4.3.5 Setting value check ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 22
4.3.6 Setting mode ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 23
4.3.7 Reset ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 24
5. Setting
5.1 Function table ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 27
5.2 Setting table ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 32
5.3 Setting in detail explanation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 40
5.3.1 Setting mode 1 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 40
5.3.2 Setting mode 2 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 49
5.3.3 Setting mode 3 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 56
6. Specification
6.1 Specification and intrinsic error ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 59
6.2 Specification, Performance ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 63
6.3 Option ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 65
7. Maintenance and check
7.1 Trouble shooting ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 67
7.2 Test ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 67
Appendix table 1

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1. Product outline
1.1 Usage of product
This single unit can measure and monitor maximum demand-current ×4, demand-current ×4, voltage ×6, current ×4,
maximum demand active power, demand active power, active-power, reactive-power, apparent power, power-factor,
frequency, watt-hour, var-hour, harmonic (voltage, current).
From a low tension circuit to a high tension circuit, it is adapted for various usages, such as a measurement
monitor of a power-receiving circuit, an energy conservation power monitor, a demand current measurement monitor,
and a harmonic monitor, a leakage monitor.
The intensive monitor united with the system is made in an addendum of analog output and a pulse output.
1.2 Features of product
An input circuit can be selected by setting from 2VT,3CT and 3VT,3CT.
Bar graph 1 measurement and digital 4 measurement are displayed simultaneously.
Analog output 4 circuits and contact output 2 circuit can be taken out. (Option)
A contact output can be selected from a pulse output, an alarm output, and a CPU error output. (Please designate
it at an order.) And, output factor can be selected by setting.
Two external operation inputs are possible. (Option) And, selection of reset input and a display change input is
possible at setting.
Power supply is AC85‐264V,DC80‐143V (for both AC and DC uses).
The mounting method of this unit is compatible with the mounting method of conventional 110 square mechanical meter.
This unit is mounted at 2 diagonal points.
Integrated value of Wh and varh can indicate expansion to 3rd digit below the decimal point.
Analog output is with a lower limit limiter.
A tidal current measurement (output 2 quadrant) change is possible for var and cosφ.
A backlight function is equipped. Selection of backlight-on, backlight-off, and auto backlight-off (Automatic
turning off the lights at the time of non-operation can be established), setting of brightness are possible.
LED:White
The product with analog output can be selected from between analog output insulation type and the analog output
non-insulation type. (Please specify at the time of an order.)

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SQLC-110L
2. The name and function of each part
This switch resets various alarms.
And, in the maximum and the minimum measurement
display, it is used as a switch that resets the
maximum and the minimum value.
In setting mode, it is used as a switch to which
a setting item is shifted.
Bar graph display
The measurement value of the main monitor
is indicated by the analog.
(Setting which does bar graph display
of the measurement value of sub-monitor
is also possible.)
Digital display
Measurement monitor can watch
4 elements at the same time.
・Main monitor
・Sub-monitor (Right)
・Sub-monitor (Center)
・Sub-monitor (Left)
SET
The switch from which integrated
value of the amount of electric
power is switched to normal display
(5 digits of integer) and expansion
indication (integer 2 digits + below
decimal point, 3 digits) variously.
If it is not operated for 10 minutes after a
display change, it will usually return to a
display. It is used also as a switch which
changes to setting mode. If it continues
pushing 3 seconds or more, it will change to
setting mode.
In setting mode, it is used as a switch that
determines a set point.
RESET/
SHIFT
Scale markings
Scale markings is automatically set in a
measurement range.
Unit display
Unit display is automatically set in a
measurement range.
Upper limit (or lower limit) setting index
An upper limit (or lower limit) set point is
displayed.
Multiplying factor display
Unit display is automatically set in a
measurement range.
MODE
The switch to which general measurement display (usually) and
the harmonic measurement (voltage and current) display are changed.
In set mode, it is used as a switch that changes a setting item.
DISPLAY
This is a switch which changes the phase
(line) display of current (voltage).
If it is not operated for 10 minutes after a
display change, it returns to the original
phase (line) display. In setting mode, it is
used as a switch that terminates setting mode.
The switch to which measurement displays
element of main monitor is changed.
If it is not operated for 10 minutes after a display
change, it returns to the original measurement display
factor. In set mode, it is used as a switch that
changes a setting value.
MAX/MIN
The switch to which general measurement display (usually)
and the maximum minimum measurement display are changed.
+ -

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3. Preparation
3.1 Installation
Mount the unit by the attached M5 nuts to a panel of thinner than 10mm, referring to the following external dimensions
drawing and panel cutout. Fasten these nuts with tightening torque 2.0 to 2.5N・m.
● Dimension diagram
● Caution on handling
Mount the LCD to obtain an optimum angle, since the contrast changes according to the monitoring angle.
● Installation
(1) A product is put in a cut hole of a panel from a front.
A body is inserted until it exceeds retaining stopper
of the lower base.
(2) Please fix a product certainly with attached M5 flange
nut for installation. Please give a tightening
torque as 2.0 to 2.5N・m.

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3.2 Connections
Please perform connection after referring to the following wiring diagram.
● Connection drawing (12)
(1) Voltage,Current input (2VT,3CT) (2) Voltage,Current input (3VT,3CT)
LOAD
910
EXT.INPUT2
EXT.INPUT1
L3L1 L2 N
AUX.SUPPLY
ANALOG OUTPUT1
CONTACT OUTPUT2
CONTACT OUTPUT1
ANALOG OUTPUT4
ANALOG OUTPUT3
ANALOG OUTPUT2
11
AUX.SUPPLY
EXT.INPUT1
EXT.INPUT2
910
9
LOAD
NL1 L2 L3
ANALOG OUTPUT1
CONTACT OUTPUT2
CONTACT OUTPUT1
ANALOG OUTPUT4
ANALOG OUTPUT3
ANALOG OUTPUT2
11
9
(3) Current input (4) Voltage input (2VT)
ANALOG OUTPUT3
910EXT.INPUT1
EXT.INPUT2
CONTACT OUTPUT2
ANALOG OUTPUT4
CONTACT OUTPUT1 11
LOAD
L3L1 L2 N
AUX.SUPPLY
ANALOG OUTPUT1
ANALOG OUTPUT2
9ANALOG OUTPUT3 9
EXT.INPUT2
EXT.INPUT1
910
CONTACT OUTPUT2
ANALOG OUTPUT4
CONTACT OUTPUT1 11
AUX.SUPPLY
N
LOAD
L1 L2 L3
ANALOG OUTPUT1
ANALOG OUTPUT2
(5) Voltage input (3VT)
910EXT.INPUT1
EXT.INPUT2
VT
LOAD
L3L1L1 L2 N
CONTACT OUTPUT2
AUX.SUPPLY
CONTACT OUTPUT1
ANALOG OUTPUT4
ANALOG OUTPUT3
ANALOG OUTPUT2
ANALOG OUTPUT1
11
9
Note(9) Analog output, contact output, external operation
input is an option.
Note(10) An external operation input can be changed to an
external-reset function or an external display
change function by setting.
Note(11) The contact output can be selected from pulse
output, alarm output, or CPU error output.
(Designation)
・Combination of contact output
Contact output 1 Contact output 2
Pulse+Alarm Pulse output Alarm output
Alarm×2 Alarm output 1 Alarm output 2
Pulse×2 Pulse output 1 Pulse output 2
Pulse+CPU error Pulse output CPU error output
Alarm+CPU error Alarm output CPU error output
Note(12) In case of low-voltage circuit, secondary side
gronuding of VT and CT is unnecessary. And, VT is
unnecessary in case it used 110V or direct 220V.

SQLC-218-090
12
● Caution on connection
(1) Mount the terminal cover without fail for safety after the end of connections.
(2) Separate the input wiring and output wiring from each other without fail, and take a preventive measure against
malfunction due to external noises.
(3) Connect the grounding terminal E (No. 7 terminal) to the ground without fail for enhancing the shield effect.
Keep the grounding resistance between the grounding terminal and the ground to be lower than 100Ω.
(4) Keep a distance of more than 30cm between this unit and the circuit breaker as well as between this unit and the
relay contact signal line.
(5) No protection is necessary for this unit even if the transmission line may be affected by an induced lightning surge
or the like when transmitting an analog output to the receiver. Mount an about 500V arrester or the like between the
line surge protector and the ground as well as between the transmission line and the ground on the receiver side for
the purpose of protecting the devices on the receiver side.
(6) Recommended to mount a surge killer outside when connecting an inductive load to the pulse output and alarm output.
If no surge killer is mounted, the contact life may shorten.
4. Operation
● The function of switch
Switch Function
SET
The integrated value of electric energy is changed to the usual display and an enlarged display.
If it continues pushing 3 seconds or more, it will change to setting mode.
In setting mode, it is used for the determination of a set point.
RESET/SHIFT Various kinds of alarms are reset. The maximum value and the minimum value are reset in the maximum
minimum measurement display. In setting mode, it is used for movement of a setting item.
MODE The usual general measurement display and harmonic measurement (voltage, current) display are changed.
In setting mode, it is used for the change of a setting item.
MAX/MIN The usual measurement display and maximum value or minimum value display are changed.
+ , - The measurement display element of the main monitor is changed.
In setting mode, it is used for change of a set point.
DISPLAY A phase (between lines) display of current (voltage) is changed. It is used in case it terminates
setting mode. And, it is used in case it returns the display combination of a measurement factor.
● Convenient functions
(1) In case a measurement change or a phase change is performed and the original screen composition is not clear
anymore,
DISPLAY
is pushed for more than 3 seconds or it's no-operation for 10 minutes and returns to original
screen structure.
(2) Even if it stops operation with setting mode, it returns to the display mode in 10 minutes.
● 7 segment displays
This product shows the guidance in various setting using 7 segment displays besides a display of a measurement
value. A digital readout and 7 segment displays corresponding to each alphabet are shown in the following.
A B(b) C D(d) E F G H I J K L M
Non-dis
play
Non-dis
play
N(n) O(o) P Q(q) R(r) S T(t) U(u) V W X Y(y) Z
Non-dis
play
Non-dis
play
0 1 2 3 4 5 6 7 8 9

SQLC-218-090
13
4.1 The screen change and function by switch operation
This product changes various screens by switch operation. Here, the change step of the screen by switch operation is
explained.
Voltage harmonic
measurement
display
General
measurement
display
Maximum / Minimum
reset
(
All factor
)
Instant measurement display
Display mode
Current harmonic
measurement
display
MODE
SET
SET
or no operation,
10 minute
Electric-energy
integrated-value
enlarged display
SET
RESET/
SHIFT
Bar graph display
factor change
MODE
Bar graph display
factor change
SET
MODE
Push
1 seconds All alarm
reset
Maximum and the minimum
measurement display
Current harmonic
measurement maximum
display
MODE
MODE
Voltage harmonic
measurement maximum
display
MODE
MAX/MIN
General measurement
maximum and minimum
display
RESET/
SHIFT
Push 1 seconds Maximum / Minimum
reset
(Display factor)
RESET/
SHIFT
Push 1 seconds
+ +
DISPLAY
Set point check
RESET/
SHIFT + -
Main monitor
display-element
change
+ ,
-
No operation,
10 minute
No operation,
10 minute
Phase (line)
display change
Push 3 seconds
SET
Setting mode 1
Push 3 seconds
Setting mode 2
SET RESET/
SHIFT
+
DISPLAY
Setting mode 3
Push 3 seconds
SET +
No operation,
10 seconds
DISPLAY or
No operation,
10 minute
DISPLAY or
No operation,
10 minute
DISPLAY or
No operation,
10 minute
DISPLAY or

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4.2 The kind of display
4.2.1 Measurement display
A measurement value display has the three following types of displays.
The change of the measurement display element of the main monitor by switch operation and the change of the phase
/ line display of current / voltage is possible (temporarily).
In a general measurement display, if switch operation is not performed for 10 minutes after changing a display element,
it returns to the original measurement display element automatically.
① General measurement display
Measurement factors, such as current, voltage,
and active power, are displayed.
The measurement value of four factors is
displayed at the maximum.
Setting which always displays a measurement
factor is possible. And, it is possible to
change to a display of the maximum value and the
minimum value, about the measurement factor
which performs holding of the maximum value and
the minimum value by switch operation.
These maximum values and the minimum value are
reset by switch operation (it updates to the
instantaneous value at the time).
In addition, as for the maximum value and the
minimum value, power-supply reset is not cleared
either. And, this display is held by even after
10 minutes of switch non-operation.
・The example of a measurement display of each measurement factor (Main monitor) ・・・ Harmonic measurement is excluded.
Measurement
factor Example of display Note Measurement
factor Example of display Note
Voltage
Current
Demand
current
"DEMAND"
display Active power
Demand
active power
"DEMAND"
display
Reactive
power
LAG
or
LEAD
display
Apparent
power
Power factor
LAG
or
LEAD
display
General measurement display
A(L2) display
V(L1L2)
display
General measurement maximum
and minimum display
Instant
display
Range of minimum to maximum is
displayed in bar graph.
Minimum
display
W
display
Wh
display
Maximum
display

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Measurement
factor Example of display Note Measurement
factor Example of display Note
Watt-hour
(Power
receiving)
Watt-hour
(Power
transmission)
"-"
display
var-hour
(Power
receiving,
LAG)
"LAG"
display
var-hour
(Power
receiving,
LEAD)
"LEAD"
display
var-hour
(Power
transmission,
LAG)
"LAG" and
"-"
display
var-hour
(Power
transmission,
LEAD)
"LEAD" and
"-"
display
Frequency
② Current harmonic measurement display
It is a measurement factor display of the distortion factor of current, relative harmonic content, harmonic effective
value, etc. The measurement value of three factors is displayed at the maximum.
About sub-monitor (center) and sub-monitor (right), it is possible to change to the factor that always indicates by
measurement. And, it is possible to change to a display of the maximum value by switch operation.
These maximum values can be reset by switch operation (it updates to the instantaneous value at the time).
In addition, as for the maximum value, even power-supply reset is not cleared. And, a display is held, even after
elapsing for 10 minutes without operating a switch.
Measurement display element)
Main monitor :Distortion factor
Sub-monitor (Left) :5th conversion or harmonic order (n)
Sub-monitor (Center):Harmonic 5th conversion content or harmonic nth content (n=3,4,5,7,9,11,13,15)
Sub-monitor (Right) :Fundamental-wave effective value , 5th harmonic conversion effective value or harmonic
nth effective value (n=3,4,5,7,9,11,13,15)

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③ Voltage harmonic measurement display
It is a measurement factor display of the distortion factor of voltage, relative harmonic content, harmonic effective
value, etc. About a function, it is the same as a current harmonic measurement display.
Current harmonic measurement display. Current harmonic measurement maximum display.
Voltage harmonic measurement display. Voltage harmonic measurement maximum display.
Distortion-factor display
Order display
Content display
Effective-value display Distortion-factor maximum
display
Order display
Content maximum
display
Effective-value maximum
display
Distortion-factor display
Order display
Content display
Effective-value display Distortion-factor maximum
display
Order display
Content maximum
display
Effective-value maximum
display

SQLC-218-090
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4.2.2 Alarm detection display
The alarm value setting is a possible measurement factor (demand current and harmonic, etc.), it displays in case
an input exceeds a set point.
Besides the usual measurement display, the detected factor is displayed on a screen upper case.
In addition, in case setting OFF (not use) as measurement factor, it does not detect.
And in the case of with an alarm-output option, it is possible to do an alarm output (relay make contact) to the outside
simultaneously with a screen display.
Alarm display possible factor) Demand current, Demand, Harmonic distortion factor (current, voltage),
Harmonic 5th conversion content (current, voltage),
Harmonic nth content (current, voltage n=3, 4, 5, 7, 9, 11, 13, 15),
Voltage
General measurement display. General measurement display (Alarm detection)
・The example of a display at the case of the detection in each alarm factor.
In case the alarm factor is indicating by measurement at the main monitor or the sub-monitor, a measurement value
constitutes a blinking display.
The displays after an alarm return.
In case a return method is automatic reset setting:It returns to the usual measurement display.
In case a return method is manual reset setting
:A detection display and an alarm output hold (in case setting as an alarm output of applicable factor).
The return in this case needs alarm reset operation. Please refer to "4.3.7 Reset" about alarm reset.
Alarm factor Example of a display Alarm factor Example of a display
Demand
current
Upper
limit
(H)
Detection display
Alarm setting value
Voltage
harmonic
5th
conversion
content
Upper
limit
(H)
Alarm setting Detection
Value display
Setting as 5th conversion content of
bar graph (It distinguishes in an
underbar)
Alarm
detection
A(L2) display
V(L1L2) display
W display
Wh display
Alarm detection
(Demand current upper limit )

SQLC-218-090
18
Alarm factor Example of a display Alarm factor Example of a display
Demand
Upper
limit
(H)
Detection display
Alarm setting value
Voltage
harmonic
nth
content
Upper
limit
(H)
Alarm setting Detection
Value display
Setting as 11th content of bar graph
(It distinguishes in an underbar)
Current
distortion
factor
Upper
limit
(H)
Alarm setting Detection
value display
Voltage
distortion
factor
Upper
limit
(H)
Alarm setting Detection
Value display
Current
harmonic
5th
conversion
content
Upper
limit
(H)
Setting as 5th conversion content of
bar graph (It distinguishes in an
underbar)
Voltage
Upper
limit
(H)
Detection Upper limit (H)
Display alarm set point
Lower limit (L)
alarm set point
Current
harmonic
nth
content
Upper
limit
(H)
Alarm setting Detection
value display
Setting as 3th content of bar graph
(It distinguishes in an underbar)
Voltage
Lower
limit
(L)
Detection Upper limit (H)
Display alarm set point
Lower limit (L)
alarm set point

SQLC-218-090
19
4.2.3 Setting display
It is the display at the case of various setting. There are three types of setting modes according to the contents
of a setting.
Refer to "5. Setting" for the operation in setting mode, and the detailed contents of a setting.
① Setting mode 1
Setting of a measurement display element, an
alarm output, and an alarm value is mainly
performed.
And, an alarm output can be tested in this
setting mode.
Setting mode 1 (No.111 Display pattern)
② Setting mode 2
Setting of measurement range, analog output,
pulse output, and measurement
display ON/OFF is mainly performed.
And, initialization of a setting value and
reset of watt-hour integrated value can be
performed in this setting mode.
Setting mode 2 (No.211 Voltage range)
③ Setting mode 3
Setting of an input circuit and tidal current
measurement is mainly performed.
Setting mode 3
(No.311 Input circuit change)
New setting
Now setting
Setting No.
Setting factor
New setting
Now setting
Setting No.
New setting
Now setting
Setting No.
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