Daiichi Electronics SMLC-110L User manual

SMLC-213-154
INSTRUCTION MANUAL
MAXIMUM (MINIMUM) SUPER MULTI-METER
SMLC-110L
Hardware Model D

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Thank you for purchase of DAIICHI ELECTRONICS product.
Please read this instruction manual carefully before use.
Safety precautions
 Usage environment and product conditions
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 less.
 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.
 Outdoor use conditions
 These products are not a dustproof, waterproof, and splash proof construction.
Please avoid the place with much dust. Moreover, please install in the place not exposed to rain nor water drop.
 Please do not install in the place where sunlight hits directly.
Discoloration and degradation of a name plate, and deformation of the case by the surface temperature rise
may occur.
 Mounting and wiring
Please refer to this instruction manual for mounting and the wiring.
 Please refer to connection diagram for the wiring.
 Please avoid a hot line work.
 Please use an electrical wire size suitable with the rated current.
 Please check the tightening of the screw.
 Preparation
This product must be set before use. Please set correctly after reading this instruction manual.
 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 does not cause any trouble. Disappears when control power is applied for 2 hours.
 Maintenance and inspection
 Inspection in energized state is dangerous.
 No replacement in periodic inspection.
 After wiring change and maintenance, attach the terminal cover.
 Please wipe off lightly with the dry soft cloth. Please do not use the organic solvent, chemicals, cleaners, etc.,
such as an alcohol, for cleaning.
The LCD may light up during cleaning on the LCD screen. This is a phenomenon that static electricity occurs in
the filter. There is no problem with the product. Leave the unit as it is for a while, and the display goes out
due to natural discharge.
Do not press the LCD screen strongly. Pressing the LCD screen may cause the filter and the liquid crystal surface
to remain in contact (such as a round pattern).
 Storage
Please store in a place that meets the following conditions.
 The ambient temperature is within -25 to +70 ℃ (storage temperature).
 Daily average temperature 40 ℃ or less.
 Location corresponding to the usage environment and use conditions.
 Aluminum electrolytic capacitors are used for products. Please energize the power supply within one year after
purchase.
 Countermeasures against troubles.
If this product breaks down within the warranty period, it will be repaired by DAIICHI ELECTRONICS.

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 Disposal
Please dispose this product as industrial waste (non-combustible).
Mercury parts and a nickel-cadmium battery are not used for this product.
 Warranty period.
The warranty period of the product is one year after the date of delivery.
 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.
The blackout this value will not be cleared by a power supply reset. However, the minimum value may be updated in
case input is not applied to a power up. Therefore the maximum value and the minimum value need to be reset of DI
after a startup, or switch operation.
For this reason, in order to recover previous minimum value, 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
3-phase voltage，Zero-phase voltage，Frequency ○ ○
 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.
 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 settings
The case of shipment of this product, it is the following default setting. Please set according to a use condition.
№ Setting item Phase voltage input Line voltage input
Vo 190V Vo 110V Vo 190V Vo 110V
1 Display combination
Pattern Pattern 1 Pattern 1
Main monitor Maximum zero-phase voltage Maximum zero-phase voltage
Sub-monitor (Left) V(RS) V(RS)
Sub-monitor (Center) V(ST) V(ST)
Sub-monitor (Right) V(TR) V(TR)
Bar graph Maximum zero-phase voltage
＋ Zero-phase voltage
Maximum zero-phase voltage
＋ Zero-phase voltage
2 Alarm output setting
(１)
Alarm 1 factor Zero-phase voltage Zero-phase voltage
Alarm 1 reset form AUTO <自動復帰> AUTO <自動復帰>
Alarm 1 test <テスト> － －
Alarm 2 factor OFF OFF
Alarm 2 reset form AUTO <自動復帰> AUTO <自動復帰>
Alarm 2 test <テスト> － －
3 3-phase voltage
detection setting
Voltage upper limit OFF OFF
Voltage lower limit OFF OFF
Line voltage Time interval 0 second <秒> 0 second <秒>
4 Zero-phase voltage
detection setting
Zero-phase voltage upper limit 5280V
( /152V) 5280V ( /88V) 5280V ( /152V) 5280V ( /88V)
Response time 0.1 second <秒> 0.1 second <秒>
Ground fault phase detection
display automatic change OFF OFF
5 Backlight Action AUTO AUTO
Brightness 3（Middle） 3（Middle）
6 Measurement range
Voltage range 9000V (6600V/110V) 9000V (6600V/110V)
Zero-phase voltage scale ×1/√
3 non display ×1/√ 3 non display
Frequency range 45.0 to 65.0Hz 45.0 to 65.0Hz

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№ Setting item Phase voltage input Line voltage input
Vo 190V Vo 110V Vo 190V Vo 110V
7 Analog output
(１)
Output factor 1 Maximum zero-phase voltage Maximum zero-phase voltage
Output factor 2 V(RS) V(RS)
Output factor 3 V(ST) V(ST)
Output factor 4 V(TR) V(TR)
Low input cut OFF OFF
8 External operation
input (１)(２)
Input 1 function Alarm reset Alarm reset
Input 2 function Max./Min. reset Max./Min. reset
9 Measurement display
ON/OFF
Phase voltage ON OFF
Line voltage ON ON
Zero-phase voltage ON ON
Frequency ON ON
10 Input circuit Zero-phase input voltage 190V 110V 190V 110V
Rated frequency 50Hz 50Hz
11 Measurement Dead band 0.0％ 0.0％
12 Analog output specification (１)(３) 1 to 5V 1 to 5V
13
Analog output
adjustment
(１)
Output 1 Bias adjustment 0.0％ 0.0％
Span adjustment 100.0％ 100.0％
Output 2 Bias adjustment 0.0％ 0.0％
Span adjustment 100.0％ 100.0％
Output 3 Bias adjustment 0.0％ 0.0％
Span adjustment 100.0％ 100.0％
Output 4 Bias adjustment 0.0％ 0.0％
Span adjustment 100.0％ 100.0％
Note(１) A setting item is not displayed in case there is no corresponding option.
Note(２) 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(３) A setting item is not displayed if analog output is except DC0 to 5V (or DC1 to 5V) specification.
 Explanation of LCD
This product (hardware model D) has the part displayed in Japanese.
Please refer to explanation of a display.
下限：Lower limit
上限：Upper limit
設定：Set
テスト：Test
零相：Zero-phase
最大：Maximum
最小：Minimum
分：Minute
秒：Second
時限：Time interval
自動復帰：Automatic reset
手動復帰：Manual reset

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Content
1. Product outline ･･････････････････････････････････････････････････････････････ 5
1.1 Usage of product ･･････････････････････････････････････････････････････････ 5
1.2 Features of product ･･･････････････････････････････････････････････････････ 5
2. The name and function of each part ･･･････････････････････････････････････････ 6
3. Preparation
3.1 Installation ･･････････････････････････････････････････････････････････････ 7
3.2 Connections ･･･････････････････････････････････････････････････････････････ 8
4. Operation ････････････････････････････････････････････････････････････････････ 9
4.1 The screen change and function by switch operation ････････････････････････ 10
4.2 The kind of display ･･･････････････････････････････････････････････････････ 11
4.2.1 Measurement display ････････････････････････････････････････････････････ 11
4.2.2 Alarm detection display ････････････････････････････････････････････････ 13
4.2.3 Setting display ････････････････････････････････････････････････････････ 14
4.3 Operation ･････････････････････････････････････････････････････････････････ 15
4.3.1 The main monitor display-element change ････････････････････････････････ 15
4.3.2 Phase (line) display change ････････････････････････････････････････････ 15
4.3.3 Ground fault phase detection display change ･････････････････････････････ 16
4.3.4 Setting value check ････････････････････････････････････････････････････ 16
4.3.5 Setting mode ･･･････････････････････････････････････････････････････････ 17
4.3.6 Reset ･･････････････････････････････････････････････････････････････････ 18
5. Setting
5.1 Function table ････････････････････････････････････････････････････････････ 20
5.2 Setting table ･････････････････････････････････････････････････････････････ 22
5.3 Setting in detail explanation ･････････････････････････････････････････････ 26
5.3.1 Setting mode 1 ･････････････････････････････････････････････････････････ 26
5.3.2 Setting mode 2 ･････････････････････････････････････････････････････････ 31
5.3.3 Setting mode 3 ･････････････････････････････････････････････････････････ 36
6. Specification
6.1 Specification and intrinsic error ･････････････････････････････････････････ 38
6.2 Performance ･･･････････････････････････････････････････････････････････････ 39
6.3 Option ････････････････････････････････････････････････････････････････････ 40
7. Maintenance and check
7.1 Trouble shooting ･･････････････････････････････････････････････････････････ 42
7.2 Test ･･････････････････････････････････････････････････････････････････････ 42

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1. Product outline
1.1 Usage of product
This single unit can measure and monitor phase voltage ×3, line voltage ×3, zero-phase voltage, frequency.
3-phase voltage can select two types, a phase voltage input product and a line voltage input product, according
to a usage. Distinction of ground fault phase can be performed by zero-phase voltage and phase voltage.
The intensive monitor united with the system is made in an addendum of analog output.
1.2 Features of product
 Phase voltage input product can distinguish the ground fault phase at the case of ground fault occurrence
by measuring zero-phase voltage and a phase voltage. (However, the maximum value and the minimum value need
to be reset of DI or switch operation after a startup.)
 Bar graph 1 measurement and digital 4 measurement are displayed simultaneously.
 Analog output 4 circuit and alarm output 2 circuit can be taken out. (Option)
And, an 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 to 264V，DC80 to 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.
 Setup of the measurement response time is possible for a phase voltage and zero-phase voltage.
(High-speed 0.05 to 5 seconds. Arbitrary settings.)
 Time interval setting is possible for a line voltage.
 The function which changes a measurement display to a maximum of zero-phase voltages and the minimum voltage
of each phase automatically at the case of ground fault detection is attached.
(Function ON / OFF is possible at a setting)
 Analog output is with a lower limit limiter.
 The backlight function is equipped (White LED backlight).
Selection of backlight on, backlight off, and auto backlight off and setting of brightness are possible.

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2. The name and function of each part
MODE
The switches to which usually measurement display
and ground-fault phase detection display are changed.
In set mode, it is used as a switch that changes a
setting item.
Scale number
Scale markings is automatically
set in a measurement range.
MODE
MODE
Instantaneous measurement
display and maximum minimum
measurement display
Ground-fault
phase detection
display
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
Digital display
Measurement monitor can watch 4 elements at the same time.
Sub-monitor (Left) Main monitor
Sub-monitor (Center) Sub-monitor (Right)
RESET/
SHIFT
DISPLAY
SET
This is the switch changed 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.
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.
This is a switch which changes the phase (line) display of
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.
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.
MAX/MIN
The switches to which instantaneous measurement display and
the maximum minimum measurement display are changed.
MAX/MIN
MAX/MIN
Instantaneous
measurement display
Maximum minimum
measurement display

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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.
(1) For upper case installation (2) For lower case installation (3) Wide viewing angle model
60°
(Side view)
10°
60°
60°
(Top view) (Side view) (Side view)
10°
60°
60° 60°
(Top view)
75°
75°
75°
75°
(Top view)
● 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 (６)
● 3-phase voltage (Phase voltage input)， ● 3-phase voltage (Line voltage input )，
Zero-phase voltage Zero-phase voltage (７)
AUX.SUPPLY
EXT.INPUT 2
EXT.INPUT 1
N
ANALOG OUTPUT 2
ALARM OUTPUT 2
ALARM OUTPUT 1
ANALOG OUTPUT 4
ANALOG OUTPUT 3
ANALOG OUTPUT 1
EXT.INPUT 2
EXT.INPUT 1
N
AUX.SUPPLY
SR
V
W
EVT
U
T
EVT
V
W
U
SRT
ANALOG OUTPUT 2
ANALOG OUTPUT 3
ANALOG OUTPUT 4
ALARM OUTPUT 1
ALARM OUTPUT 2
ANALOG OUTPUT 1
Note(４) Analog output, alarm output, external operation input is an option.
Note(５) Can change to external reset function or external display change function by setting.
Note(６) In case of low-voltage circuit, secondary side grounding of VT is unnecessary.
Note(７) If a 3-phase voltage input is line voltage input specification, phase voltage measurement is OFF and it
cannot perform the check of a ground fault phase.
Grounding except S phase (R, T phase, or neutral point) does not have a problem on characteristics.
 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) We recommended to mount a surge killer outside when connecting an inductive load to the alarm output.
If no surge killer is mounted, the contact life may shorten.

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4. Operation
 The function of switch
Switch Function
SET 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 instantaneous measurement display and maximum (minimum) measurement display and ground fault
phase detection display is changed. In setting mode, it is used for the change of a setting item.
MAX/MIN The instantaneous measurement display and maximum (minimum) measurement display is 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
No
display
No
display
N(n) O(o) P Q(q) R(r) S T(t) U(u) V W X Y(y) Z
No
display
0 1 2 3 4 5 6 7 8 9

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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.
Display mode
Ground-fault
phase
detection
display
MODE
MAX/MIN
Alarm reset Maximum / Minimum reset
(
All factor
)
Instantaneous
measurement
display
RESET/SHIFT
Push 1 second Alarm reset
DISPLAY
Main monitor
display-element
change
＋ ， －
No operation,
10 minute
No operation,
10 minute
Phase (line)
display change
Set point
check
No operation, 10 minute
DISPLAY or
Push 3 seconds
SET
Setting mode 1
No operation, 10 minute
DISPLAY or
Setting mode 2
RESET/SHIFT and －
No operation, 10 minute
DISPLAY or
Setting mode 3
No operation, 10 minute
DISPLAY or
Maximum and
the minimum
measurement
display
RESET/SHIFT
Push 1 second Maximum /
Minimum reset
Display-elemen
t change
＋ ， －
DISPLAY Phase (line)
display change
MODE
RESET/SHIFT
Push 1 second
SET and DISPLAY
Push 3 seconds
SET and RESET/SHIFT
Push 3 seconds
RESET/SHIFT and ＋
Push 1 seconds
RESET/SHIFT and ＋
Push 1 seconds

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4.2 The kind of display
4.2.1 Measurement display
A measurement value display has the two 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 voltage is possible (temporarily).
In an instantaneous 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 Measurement display
Measurement factors, such as 3-phase voltage, zero-phase voltage, and frequency, 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 no operation.
・The example of a measurement display of each measurement factor (Main monitor)
Measurement
factor Example of display Note Measurement factor Example of display Note
Line
voltage
Phase
voltage
Zero-phase
voltage
“ZERO PHASE
<零相>” is
display
Maximum
zero-phase
voltage
“MAX.<最大>”
and
“ZERO PHASE
<零相>” is
display
Frequency
Instantaneous measurement display
Zero-phase voltage display
V(RS) display V(ST) display V(TR) display
Maximum and minimum measurement display
Range of minimum to maximum is displayed in bar graph.
Minimum display Maximum display
Instantaneous
display

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② Ground fault phase detection display
The maximum zero-phase voltage and the minimum phase voltage of each phase are displayed. (Display-element fixation)
It is possible to distinguish the ground fault phase at the case of ground fault occurrence by displaying these
measurement values. As for this display, power supply reset is also held. And, each maximum value and the minimum
value are always updated by the newest value. However, about line voltage input product, a phase voltage is OFF.
The change by switch operation and the automatic change at the case of the ground fault detection by setup are
possible for the change to this display.
The change to this display has the next method. The change by switch operation, and the automatic change at the
case of the ground fault detection by setup.
In addition, in case a backlight setup changes to a ground fault phase detection display automatically by ground
fault detection by "OFF", backlight turn on the lights at the same time a screen is changed. (After that, in case
it does not operate it for 5 minutes, backlight goes out.)
Please refer to "4.3.3 Ground fault phase detection display change" about switch operation. And about the automatic
change setting method, please refer to " 5.3.1 setting mode 1 (4) zero-phase voltage detection setting".
Ground fault phase detection display
Instantaneous measurement display
Maximum, minimum measurement display
Zero-phase <零相> is display
Maximum zero-phase voltage
Minimum V(SN)
Minimum V(TN)
Minimum V(RN)
MAX/MIN
MODE
MODE
In a
ground-fault
phase
detection
display, it
Backlight
lighting (At
the case of
an automatic
turn off the
lights
setting)
・Display element
Main monitor Maximum zero-phase voltage
<最大零相>
Sub-monitor (Left) Minimum V(RN) <最小>
Sub-monitor (Center) Minimum V(SN) <最小>
Sub-monitor (Right) Minimum V(TN) <最小>
Each minimum phase voltage of a line voltage input
product is OFF.
Maximum zero-phase voltages and minimum voltage
update a value.
Ground-fault
detection
Switching of a measurement element
is possible of ＋ or － switch.
Ground fault phase detection display
Ground-fault
detection

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4.2.2 Alarm detection display
The alarm value setting is a possible measurement factor (zero-phase voltage and line voltage), 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) Zero-phase voltage, Line voltage (the maximum value between each line),
Measurement display 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 "4.3.6 Reset" about alarm reset.
Alarm factor Example of a display Alarm factor Example of a display
Line
voltage
Upper
limit
(H)
<上限>
Zero-phase
voltage
Lower
limit
(L)
<下限>
Zero-phase
voltage
Upper
limit
(H)
<上限>
Detection display
Upper limit (H) alarm set point
Alarm
detection
Zero-phase
voltage
display
V(RS) display
V(ST) display
V(TR) display
Alarm detection (Zero-phase
voltage upper limit)
Detection
dis
p
la
y
Lower limit (L) alarm set point
Upper limit (H)
alarm set point
Detection
dis
p
la
y
Lower limit (L) alarm set point
Upper limit (H)
alarm set point

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4.2.3 Setting display
This is display for various setting. There are three types of setting modes according to the contents of 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,
and measurement display ON/OFF is mainly
performed.
And, initialization of a setting value can be
performed in this setting mode.
Setting mode 2 (No.211 Voltage range)
③ Setting mode 3
Setting of input circuit is mainly performed.
And, analog output can be adjusted in this
setting mode.
Setting mode 3
(No.311 Input circuit zero-phase input voltage)
New setting
Current setting
Setting No.
New setting
Current setting
Setting No.
Setting factor
New setting
Current setting
Setting No.

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4.3 Operation
4.3.1 The main monitor display-element change
The measurement display element of the main monitor is changed. A change is performed by ＋ －.
This operation can perform the maximum and the minimum display other than instantaneous measurement display.
After changing a measurement display element, if a switch is not operated for 10 minutes, it will return to the
original measurement display element automatically.
In maximum display and minimum display, even if a switch is not operated for 10 minutes, it does not return to the
original display.
Setting can perform same operation in external operation input. Please refer to "5.3.2 Setting mode 2, (3) external
operation input setting" about the setting method. Please refer to "6.3 Option" about external operation input.
Main monitor Main monitor Main monitor
(Blank display) Maximum zero-phase voltage Zero-phase voltage
(Default display)
4.3.2 Phase (line) display change
A phase (line) display of voltage is changed. (Everything which is being indicated)
A change is performed by
DISPLAY .
This operation can perform the maximum and the minimum display other than instantaneous measurement display.
In addition, after changing a phase (line) display, if a switch is not operated for 10 minutes, it will return
to the original phase (line) display automatically.
In maximum display and minimum display, even if a switch is not operated for 10 minutes, it does not return to
the original display.
Setting can perform same operation in external operation input. Please refer to "5.3.2 Setting mode 2, (3) external
operation input setting" about the setting method. Please refer to "6.3 Option" about external operation input.
(Default display)
＋
－
＋
－ ＋
－
＋
－
Maximum zero-phase voltage display
V(RS) display V(ST) display V(TR) display
No operation 10 minute
DISPLAY DISPLAY DISPLAY
Maximum zero-phase
voltage display
V(RS) display V(ST) display V(TR) display
No operation 10 minute

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4.3.3 Ground fault phase detection display change
A measurement display and a ground fault phase detection display are changed. A change is performed by
MODE .
This operation can perform the maximum and the minimum display other than instantaneous measurement display.
In addition, even if it elapses for 10 minutes without operating a switch, it does not return to the original display.
And, a display is held even if it performs power supply reset. And, each maximum value and the minimum value
are always updated by the newest value.
Besides switch operation, it can change to a ground fault phase detection screen automatically by setup at the
case of ground fault phase detection. Please refer to "5.3.1 Setting mode 1 (4) zero-phase voltage detection
setting" about the setting method.
Ground fault phase detection display
＊ A ground fault phase constitutes the minimum value of a RN-SN-TN phase voltage.
However, if a high order circuit breaker is switched OFF at the case of zero-phase voltage detection, all the
minimum values of RN-SN-TN will be 0V.
In that case, please check a ground fault phase at the maximum value of RN-SN-TN phase voltage.
4.3.4 Setting value check
A voltage range (VT ratio) and an alarm output set point are checked.
Check is
RESET/SHIFT and － are pushed simultaneously and performed.
The change of a set point is carries out by ＋ and － .
This operation can perform a ground fault phase detection display and the maximum and minimum display other
than a general measurement display.
DISPLAY is pushed in case it returns to the original measurement display.
And, if a switch is not operated for 10 seconds after a set point check, it will return to the original measurement
display automatically.
MODE
Measurement display
(Instantaneous measurement display ，
Maximum, minimum measurement display )
＋
－
Zero-phase
voltage
range
Alarm output 1
factor，
Return method
Alarm output 2
factor，
Return method
Alarm output 1
Time interval
VT ratio
Factor display
Input rating voltage display
Alarm output 2
Time interval
No operation
10 seconds
Maximum zero-phase
voltage display
V(RS) display V(ST) display V(TR) display
Instantaneous measurement display
< Set value check >
Voltage range (VT ratio)
＋
－
＋
＋
＋
＋
－
－ －
－
DISPLAY
RESET/SHIFT
and －

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4.3.5 Setting mode
Various kinds of setting are performed. Setting mode is three types, and operations are different.
DISPLAY is pushed in case it returns to the original measurement display. And, if a switch is not operated
for 10 minute after a set point check, it will return to the original measurement display automatically.
Operation and the contents of setting (detail) in setting mode, please refer to "5 Setting".
・Setting mode 1：Press
SET for longer than 3 seconds.
・Setting mode 2：Press SET and RESET/SHIFT together for longer than 3 seconds.
・Setting mode 3：Press SET and DISPLAY together for longer than 3 seconds.
<Reference> This operation can perform the maximum, the minimum display, and a ground fault phase detection
display besides an instantaneous measurement display.
SET and RESET/SHIFT 3 seconds
Setting mode 2 Setting No.
Setting mode 1
New setting
Current setting
Setting No.
Maximum zero-phase voltage display
Instantaneous measurement
display
Setting mode 3
SET 3 seconds
SET and DISPLAY 3 seconds
New setting
Current setting
Setting
factor
V(RS)
display
V(ST)
display
V(TR)
display
New setting
Current setting
Setting No.
DISPLAY or 10
minute no operation.
Return to
measurement display.

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4.3.6 Reset
Various kinds of reset are performed. The kind of reset is as follows and operations are different, respectively.
Reset of maximum value and minimum value (it updates to the instantaneous value at the time)，
Alarm output reset (OFF of an alarm output (at the case of manual reset setting)).
And, the operation from each measurement display constitutes conditions at each reset.
(1) Reset of maximum value and minimum value
Reset of the various measurement values of maximum value and minimum value is performed.
This reset has two types of methods. (How to perform according to a measurement factor individual.
How to reset all maximum values and minimum values by package.)
<Caution> After a startup, needed is reset of maximum value and minimum value.
a) Individual reset
Reset of only a certain differential maximum value or the minimum value is performed.
Other maximum values and minimum values are not reset by this operation.
① A measurement factor to reset is displayed. (Maximum value, minimum value display)
② Press
RESET/SHIFT for longer than 1 seconds.
<Caution> An alarm output will be reset if this operation is performed by instant measurement display.
Please be sure to perform this operation after displaying the maximum value and a minimum value
measurement factor to make it reset.
Maximum, Minimum measurement display. Reset completion.
b) Package reset
Reset of all the maximum values and minimum value is performed.
In addition, setting can perform same operation in external operation input.
Please refer to "5.3.2 Setting mode 2 (3) external operation input setting" for the setting method,
Please refer to "6.3 Option" for the external operation input,
① Press
RESET/SHIFT and ＋ together for longer than 1 seconds.
By the maximum and the minimum measurement display and ground fault phase detection display.
Maximum, Minimum measurement display. Reset completion.
RESET/SHIFT
1 second
Instantaneous display
The range of minimum to maximum
is displayed in bar graph.
Minimum display Instantaneous
display
Maximum display Minimum display
(
Reset
)
Maximum display
(
Reset
)
RESET/SHIFT
and ＋ 1 second
Instantaneous display
The range of minimum to maximum
is displayed in bar graph.
Minimum display Instantaneous
display
Maximu
m
display Minimum display
(Reset)
Maximum display
(Reset)

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(2) Alarm reset
In case an alarm return method is set to “HOLD (manual return)”, an alarm output is reset (output OFF).
(With an alarm output option)
However, an output is not turned off by this operation, in case an alarm continues and it has caused.
And, this operation is unnecessary in case setting as "AUTO (automatic return)” in alarm return method.
(By which an output is also OFF according to an alarm return.)
In case the number of alarm outputs is two, both outputs are reset (output OFF) by this operation.
(Return operation that comes out individually cannot be performed.)
In addition, setting can perform same operation in external operation input.
Please refer to "5.3.2 Setting mode 2 (3) external operation input setting" for the setting method,
Please refer to "6.3 Option" for the external operation input,
① By An instantaneous measurement display or ground fault phase detection display,
RESET/SHIFT is pushed
1 second or more.
<Caution> If this operation is performed by the maximum and the minimum measurement display, the maximum value
and minimum value of the measurement factor currently displayed will be reset.
Please be sure to perform this operation in the state of an instantaneous measurement display or
ground fault phase detection display.
Instantaneous measurement display Reset completion
(General measurement display)
Alarm detection (Hold)
RESET/SHIFT
1 second