Insulation Monitoring Module User`s Manual

Danger
・For installation and wiring works, make sure that the power source is shut off for all outside phases. If all
phases are not turned off, it may cause an electric shock or product damages.
Caution
・Any person who is involved in the installation and the wiring of this Sequencer should be fully
competent to do the work.
・Use the programmable controller in an environment that meets the general specifications in the User’s
Manual for the CPU module used. Failure to do so may result in electric shock, fire, malfunction, or
damage to or deterioration of the product.
・To mount the module, while pressing the module-mounting lever located in the lower part of the
module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the
module until it snaps into place.
Incorrect mounting may cause malfunction, failure or drop of the module.
When using the Sequencer in an environment of frequent vibrations, fix the module with a screw.
・Tighten the screw within the specified torque range. Under tightening can cause drop of the screw,
short circuit or malfunction. Over tightening can damage the screw and/or module, resulting in drop,
short circuit, or malfunction.
・Shut off the external power supply for the system in all phases before mounting or removing the
module.
Failure to do so may result in damage to the product.
・Do not directly touch any conductive part of the module. Doing so can cause malfunction or failure of
the module.
・FG terminal must be grounded according to the D-type ground (Type 3) dedicated for sequencer.
Failure to do so may result in an electric shock or a malfunction.
・When using this product, make sure to use it in combination with zero phase transformer (CZ
series and ZT series). Please not to exceed the ratings of this product for input of zero phase
transformer. For further details, please refer to zero phase transformer manual to maintain the
functionality and the accuracy of this product.
・This module and the zero-phase current transformer are used for less than 600V circuit only. They are
not used with exceeding 600V circuit.
・ZCT CZ series and ZT series do not have a secondary output polarity.
・Take care not entering any foreign objects such as ships and wire pieces into the module. It may
cause a fire, a failure or a malfunction.
・In order to prevent the module from incoming foreign objects such as wire pieces during wiring work, a
foreign-object preventive label is placed on the module. While a wiring work is performed, keep the
label on the module. Before operating the system, peel off the label for heat release. If the
foreign-object preventive label is not peeled and the system is in use, residual heat inside the module
may reduce the product life.
・The wires to be connected to the module shall be placed in a duct or fixed together by clamping. If the
electric wires are not placed in the duct or clamped together, loosen wires or their movement or
careless stretch may cause a breakage of the module or wire or a malfunction due to poor contact of
electric wires.
・Use appropriate size of electric wires. If inappropriate size of electric wire is used, it may cause a fire
due to generated heat.
・In case using stranded wire, take measures so that the filament should not vary by using a bar
terminal or by processing the point twisted. Use the bar terminal appropriated for the size of electric
wires. If inappropriate bar terminal is used, a wire breakage or a contact failure may occur, which may
cause a device malfunction, a failure, a burnout, or a fire.
・After inserting the electric wire or a bar terminal, make sure that no missing insertion is existing.
Missing insertion may cause a device malfunction, a fire, or an electric shock.
・If the wires connected to the module are strongly pulled off, it may cause a malfunction or a breakage
to the module or the wire.
・Ensure the wiring to the module properly, checking the rated voltage and current of the product and
the terminal pin assignment. If the input voltage exceed the rated voltage or the wiring is improper, it
may cause a fire or a breakage. (Tensile load: 22N or less)
・Do not exceed the specified voltage when doing an insulation resistance test and a commercial
frequency withstand voltage test.
User’s Manual (Hardware)
・Before using this module, please read both this manual and Details carefully and pay full attention to safety to handle this
module correctly.
・Make sure that the end users read this manual and then keep the manual in a safe place for future reference.
ABOUT MANUALS
The following manuals are also related to this module.
Order each manual as needed, referring to the following list.
Manual name
Insulation Monitoring Module User’s Manual(Details) QE82LG
Manual number(model code)
IB63564(19H871)
COMPLIANCE WITH THE EMC AND LOW VOLTAGE DIRECTIVES
(1) For programmable controller system
To configure a system meeting the requirements of the EMC and Low Voltage Directives when incorporating the
Mitsubishi programmable controller (EMC and Low Voltage Directives compliant) into other machinery or equipment,
refer to Chapter 9
"EMC AND LOW VOLTAGE DIRECTIVES" of the QCPU User's Manual (Hardware Design, Maintenance and
Inspection).
The CE mark, indicating compliance with the EMC and Low Voltage Directives, is printed on the rating plate of the
programmable controller.
(2) For this module
For the compliance of this module with the EMC and Low Voltage Directives, refer to Section 6.1 Wiring.
1. Features
●This enables to measure leak current for safety actions.
By monitoring leak current (Io), risk for electric shock can be detected.
●This enables constant monitoring of insulation for equipment.
By monitoring leak current for resistance (Ior), deterioration of equipment insulation can be tracked.
●This enables 2-level alarm monitoring during monitoring for each measuring element.
For each leak current (Io) and leak current for resistance (Ior), 2-level alarm monitoring can be performed without a
sequence.
●This enables to measure two circuits, using one device.
At the power source with the same-phase wire method, a single device can measure two circuits.
●This enables to measure sensitive.
By changing setting to high sensitivity mode, this enables to measure from 0.01mA.
2. Checking packaged contents
The following items are included in the package. Check that no items are missing.
・ Insulation Monitoring Module x 1
・ User’s Manual (Hardware) x 1
3. Safety Precautions
3.1 Precautions for Operating Environment and Conditions
Do not use this product in the places listed below. Failure to follow the instruction may cause malfunctions and a life
decrease of product.
・Places the Ambient temperature exceeds the range 0 – 55ºC.
・Places the Relative humidity exceeds the range 5 – 95% or places with dewfall.
・Altitude exceeds 2000 m.
・Places exposed to rain or water drop.
・Dust, corrosive gas, saline and oil smoke exist.
・Vibration and impact exceed the specifications.
・Installed excluding the control panel.
Caution
・Use the product within the ratings specified in this manual. If it is used outside the ratings, it may cause
not only malfunction or failure but also fire or burnout.
・Before operating the product, check that active bare wire, etc. does not exist around the product. If any
bare wire is found, stop the operation immediately, and take an appropriate action such as isolation
protection.
・Do not disassemble or modify the module. It may cause failure, malfunction, injury or fire.
・Attaching and detaching the module must be performed after the power source is shut off for all
outside phases. If all phases are not shut off, it may cause electric shock, failure or malfunction of the
module.
・Do not touch powered wires. It may cause malfunction.
・Tighten mounting screws and cleaning module must be performed after the power source is shut off
for all outside phases. If all phases are not shut off, it may cause electric shock, failure or malfunction
of the module.
・Use a soft dry cloth to clean off dirt of the module surface.
・Do not let a chemical cloth remain on the surface for an extended period of time nor wipe the surface
with thinner or benzene.
・Check for the following items to use this module properly for long time.
<Daily maintenance>
(1) No damage on this module (2) No abnormality with LED indicators (3) No abnormal noise, smell or
heat.
(Once every 6 months to 1 year)
<Periodical maintenance>
(4) No looseness with installation, wire connection to terminal blocks, and connector connection.
(Check these items under the electric outage condition.)
3.5 Disposal Precautions
・When disposing of this module, treat it as industrial waste.
4.2 Names and functions of LEDs
The following describes names and functions of LEDs.
Name
RUN
LED
Color
Green
ERR.
LED
Red
ALM1
LED
Red
ALM2
LED
Red
Role
Displays the operation
status of this module.
Displays errors and
conditions of this
module.
Displays alarm
occurrence status of
CH1.
Displays alarm
occurrence status of
CH2.
QE82LG
R
UN
ERR.
A
LM1
LM2
A
(5) Push button
Use this button to
insert a cable to the
terminal or to remove
them.
C
H
1
C
H
2
Z
Z+
STRIP GAUGE
P2
P3
FG
QE82LG
10
(6) Check hole
Use this for continuity
check to the terminal.
Use it with a tester
contact.
C
H
2
RUN
ERR
ALM1
ALM2
Zero-phase
current transformer
(ZCT)
Z+
Z
Z+
Z
P1
P2
P3
FG
three-phase 3-wire (with the voltage transformer)
(3) Voltage input terminals
Connect the voltage input
wire of the measuring circuit.
(4) Strip gauge
A gauge that is used for
checking the length of
stripped wire.
Supplementary
Check the stripping length using the strip gauge of this module.
Description
CH1 Z+,Z
Leakage current input terminal (CH1)
CH2 Z+,Z
Leakage current input terminal (CH2)
P1
P2
P3
1-phase voltage input terminal
2-phase voltage input terminal
3-phase voltage input terminal
FG
Frame GND terminal
Power 1(1)
source 2(0)
side
Load
side
QE82WH
QE82WH
RUN
ERR
ALM1
ALM2
RUN
ERR
ALM1
ALM2
C
H
1
C
H
2
Zero-phase
current transformer
(ZCT)
Z+
Z
Z+
Z
P1
P2
P3
FG
C
H
1
C
H
2
Load 1
Load 1
8. Specifications
Unit [ mm ]
6.2 How to connect wires
●Use appropriate electric wires as described below.
●Stripping length of the used wire in use has to be 10 to 11mm. Check
the stripping length using the strip gauge of QE82LG module.
●When stranded wire is used, a bar terminal must be used.
●When attaching and detaching cables to/from the terminal, use the
push button. Check that the wire is securely inserted.
●Insert a wire to the terminal all the way until it touches the end.
<Applicable wire (Usable electric wire)>
Single wire: φ0.5 – 1.2mm (AWG24∼AWG17)
2
Stranded wire: 0.5 – 1.3 mm (AWG20∼AWG16)
・UL/c-UL listed corresponds, use the wires according
to the following conditions.
Single wire : AWG24∼AWG18
Stranded wire : AWG20∼AWG18
●60/75℃ copper conductor only.
<Recommended bar terminal>
RUN
ERR.
ALM1
ALM2
Rating
Changes according to the alarm status of CH2 Alarm.
C
H
2
Specifications
Model
Voltage
circuit
*2
Z+
single-phase
2-wire,
three-phase
3-wire
single-phase
3-wire
Leak current circuit
Z
Frequency
Z+
Measuring range
Z
P1
P3
FG
90.5
Base unit
27.4
Resolution
Allowable tolerance of module
(excluding ZCT)
Measurable circuit count
Operating temperature
Operating humidity
Storage temperature
Operating altitude
Commercial frequency
withstand voltage
Unit connector
Base unit
Standard
Installation area
Unit
Product life expectancy
10. Customer Service
Please contact us at the following locations.
1 - 8 Midori-cho, Fukuyama-shi, Hiroshima, 720 - 8647, Japan
9. Warranty
Item
Phase-wire system
QE82LG
C
H
1
・Attach to the base unit of MELSEC-Q series.
・When attaching the module, make sure to insert the protruding portions for fixing the module into the holes on the base
unit. In doing so, insert it securely so that the protruding portion of the module does not come off of the holes. Do not
force to attach the module; otherwise the module may break.
・When installing the module at a vibrating area with strong impact, tighten the module to the base unit using screws.
Fixing-Module screw (arranged by user) : M3 x 12mm
Tightening torque of the fixing-module screws: 0.36 – 0.48 N•m
Load 2
●Input signal wire shall not be bound together with
or placed close to the main circuit and power line.
Keep 300 mm or longer distance between them.
The noise causes malfunctions.
●For wiring voltage circuit and ZCT secondary, use
separate cables from other external signals in
order to prevent from AC surge and induction.
●In case of measuring leakage current for
resistance, it is possible on single-phase 2-wire,
single-phase 3-wire, three-phase 3-wire delta circuit.
●The measurement of two circuits is possible at one
module in the same system in the same trans.
●ZCT CZ series and ZT series do not have a
secondary output polarity.
●Length of wire between ZCT and this module is
max. 50 m.
●ZCT output wire from Z+ and Z terminal has to be
stranded at 40 times/m.
●Wiring it is necessary to wire voltage input.
●When 220 V or higher is loaded to the voltage
circuit, use a voltage transformer. For connection to
P1 - P3 terminals on QE82LG, connect the
secondary of transformer.
●Make sure that terminal symbols are correct. If
phase wires are connected incorrectly, accurate
measurement cannot be performed.
●For the actual usage, connect the FG terminal to
ground. (D-type ground: Type 3) Connect it directly
to the ground terminal.
●Do not connect to FG terminal during the insulation
resistance test and pressure test.
TGV TC-1.25-11T(NICHIFU TERMINAL INDUSTRIES CO.,LTD)
*2
Complete
Zero-phase
current transformer
(ZCT)
Z+
Z
Z+
Z
P1
P2
P3
FG
Load 2
7. Dimensions
Hole for fixing the unit
Load
side
Voltage
transformer
for gauge
QE82LG
Names of signals of terminal block
Load 2
single-phase 2-wire
Power 1
source 2
side 3
Changes according to the alarm status of CH1 Alarm.
Lever for attaching
the unit
Caution
Load 1
5.1 How to attach to the base unit
Insert it securely so that the
protrud ing portion f or fixing t he
unit *1 does not come off of t he
unit-fixing hole.
Zero-phase
current transformer
(ZCT)
Z+
Z
Z+
Z
P1
P2
P3
FG
Load 2
Load 1
Indicator condition
Normal operation
5V power discontinuity, watch dog timer error
Hardware error*1
Out-of-range error*1
Normal operation
Protrusion for fixing
the unit (*1)
Name of
terminal
C
H
1
C
H
2
P2
Chec k that the unit is firm ly
ins erted to the bas e unit.
Z
P1
C
H
1
Load
side
QE82WH
RUN
ERR
ALM1
ALM2
Hook for fixing the
unit (*2)
(2) Leakage Current input
terminals
Connect the current wire of
the measuring circuit with the
secondary output of the ZCT.
Z+
QE82WH
5. Attaching and removing the module
Push the unit toward the arrow
direct ion, as the unit-fixing hole
being a fulcrum point, unt il you
hear a c lick sound to firmly
attach it to the based unit.
4. Name and function of each part
Power 1(1)
source 2(0)
3(2)
side
Load
side
*1:For details, check with the list of error codes. (Refer to section 9.1)
*2:Refer to User’s Manual (details) : Capter4, 4.2.3.
4.1 Names and functions of parts of QE82LG are provided below.
(1) LED
Operation status of this
unit is displayed.
ON:
OFF:
ON:
Flashing:
OFF:
single-phase 3-wire
Power 1
source 2
side 3
4
3.4 Precautions for Start-up and Maintenance
three-phase 3-wire
STRIP GAUGE
Model QE82LG
10
Mitsubishi
Programmable Controller
6. How to wire
6.1 Wiring
For external connection to QE82LG, follow the phase method and the connection diagram.
When using this product, make sure to use it in combination with zero phase transformer (CZ series and ZT series). See the User’s Manual (Details) of this module, and the installation method and the detailed specifications of ZCT.
98
Insulation Monitoring Module
3.2 Matters concerning the preparation before use
・Use the module in the specified usage environment and conditions.
・The setting of this module (phase system, primary voltage, primary current)is necessary before using it.
※Please refer to "User’s Manual (Details)" about each setting method.
3.3 Installation and Wiring Precautions
Phone (084) 926 - 8142
When exported from Japan, this manual dose noto require application to the Ministry of
Economy, Trade and Industry for service transaction permission.
Specifications subject to change without notice.
QE82LG
single-phase 2-wire / single-phase 3-wire /
three-phase 3-wire
110 V, 220 V AC
110 V AC (b/w 1- and 2-phase, 2- and 3-phase)
220 V (b/w 1- and 3-phase)
1 A AC
(Zero-phase current transformer (ZCT) is used. It
indicates the primary current value of ZCT.)
50-60 Hz
Low sensitivity mode
: 0–1000mA
High sensitivity mode
: 0.00–100.00mA
Low sensitivity mode
: 1mA
High sensitivity mode
: 0.01mA
Leak current
: ±2.5% (10 – 100% range of Rating)
: ±2.5mA (0 – 10% range of Rating)
Leak current for resistance
: ±2.5% (10 – 100% range of Rating)
: ±2.5mA (0 – 10% range of Rating)
2 circuits
0 – +55°C (Average daily temperature 35°C or below)
5 – 95% RH (No condensation)
-25 – +75°C
2000 m or below
Between voltage/leakage current input terminals
- FG terminal
2210 V AC5 sec
Between voltage/leakage current input terminals
- sequencer power source and GND terminals
2210 V AC5 sec
EMC: EN61131-2:2007, EN61326-1:2006
LVD: EN61131-2:2007, EN61010-1:2001
Inside a control panel
10 years
(used under the average daily temperature 35°C or less)
・The gratis warranty term of the product shall be for one year after the date
of purchase or delivery to a designated place.
Note that after manufacture and shipment from Mitsubishi, the maximum
distribution period shall be six (6) months, and the longest gratis warranty
term after manufacturing shall be eighteen (18) months. The gratis
warranty term of repair parts shall not exceed the gratis warranty term
before repairs.
・Our company shall not be liable to compensate for any loss arising from
events not attributable to our company, opportunity loss and lost earning of
the customer due to failure of the product, and loss, secondary loss,
accident compensation, damage to other products besides our products
and other operations caused by a special reason regardless of our
company’s predictability in both within and beyond the charge-free
warranty period.
Caution
If an abnormal sound, bad-smelling smoke, fever break
out from this module, I switch it off promptly, and don’t
use it.