Thank you for purchasing Panasonic Electric Works SUNX’s controller SQ4-C11 for safety liquid
leak sensor SQ4-Asereis.
Read this instruction manual carefully and thoroughly for the correct and optimum use of this
device.
Kindly keep this manual in a convenient place for quick reference.
This device is a special controller of safety liquid leak sensor SQ4-Asereis.
This manual has been written for the following personnel who have undergone suitable training
safety
and have knowledge of
liquid leak sensors, as well as, safety systems and standards.
● who are responsible for the introduction of this device
● who design the system using this device
● who install and connect this device
● who manage and operate a plant using this device
Notes
1) All the contents of this instruction manual are the copyright of the publishers, and may
not be reproduced (even extracts) in any form by any electronic or mechanical means
(including photocopying, recording, or information storage and retrieval) without permission in writing from the publisher.
2) The contents of this instruction manual may be changed without prior notice for further
improvement of the device.
3) Though we have carefully drawn up the contents of this instruction manual, if there are
any aspects that are not clear, or any error that you may notice, please contact our local
Panasonic Electric works SUNX offi ce of the nearest distributor.
4) English and Japanese are original instructions.
2-4-1 Power Supply Unit ················································································ 13
2-4-2 I/O Circuit Diagrams ············································································· 14
2-4-3 Connecting to the Terminal Block of the Controller ······························ 16
2-4-4 Connection / Removal of Controller and Safety Liquid Leak Sensor
SQ4-A Series
3-1 Self-diagnosis Function ·············································································· 20
3-2 Interlock Function ······················································································· 20
3-2-1 Manual Reset ······················································································· 20
3-2-2 Auto Reset ···························································································· 21
3-3 Test Input Function ····················································································· 22
3-4 Safety Input Function ·················································································· 23
3-5 Auxiliary Output Function (Non-safety Output) ··········································· 26
3-6 Lockout Cancel Function ··········································································· 26
This instruction manual employs the following attentions marks , , depending on
the degree of the danger to call operator’s attention to each particular action. Read the following
explanation of these marks thoroughly and observe these notices without fail.
If you ignore the advice with this mark, death or serious injury could result.
If you ignore the advice with this mark, injury or material damage could result.
<Reference>It gives useful information for better use of this device.
1-2 Safety Precautions
■ Use this device as per its specifi cations. Do not modify this device since its functions and ca-
pabilities may not be maintained and it may malfunction.
■ This device has been developed / produced for industrial use only.
■ This device is suitable for indoor use only.
■ Use of this device under the following conditions or environments is not presupposed.
Consult us if there is no other choice but to use this device in such an environment.
1) Operating this device under conditions or environments not described in this manual.
2) Using this device in the following fi elds: nuclear power control, railroad, aircraft, automo-
biles, combustion facilities, medical systems, aerospace development, etc.
■ When this device is to be used for enforcing protection of a person from any danger occurring
around an operating machine, the user should satisfy the regulations established by national
or regional security committees (Occupational Safety and Health Administration: OSHA, the
European Standardization Committee, etc.). Contact the relative organization(s) for details.
■ In case of installing this device to particular machine, follow the safety regulations in regard
to appropriate usage, mounting (installation), operation and maintenance. The users including the installation operator are responsible for the introduction of this device.
■ Note that this device may be broken with strong impact including drop.
■ Use this device by installing suitable protection equipment as a countermeasure for failure,
damage, or malfunction of this device.
■ Before using this device, check whether the device performs properly with the functions
and capabilities as per the design specifi cations.
■ In case of disposal, dispose this device as industrial waste.
♦ Machine designer, installer, employer and operator
● The machine designer, installer, employer and operator are solely responsible to ensure
that all applicable legal requirements relating to the installation and the use in any application are satisfi ed and all instructions for installation and maintenance contained in the
instruction manual are followed.
● Whether this device functions as intended to and systems including this device comply
with safety regulations depends on the appropriateness of the application, installation,
maintenance and operation. The machine designer, installer, employer and operator are
solely responsible for these items.
♦ Engineer
● The engineer would be a person who is appropriately educated, has widespread knowl-
edge and experience, and can solve various problems which may arise during work,
such as a machine designer, or a person in charge of installation or operation etc.
♦ Operator
● The operator should read this instruction manual thoroughly, understand its contents,
and perform operations following the procedures described in this manual for the correct
operation of this device.
● In case this device does not perform properly, the operator should report this to the per-
son in charge and stop the machine operation immediately. The machine must not be
operated until correct performance of this device has been confi rmed.
♦ Environment
● Since this product is not an explosion-proof type, it cannot be used in an explosive at-
mosphere.
● Do not use a mobile phone or a radio phone near this device.
● Do not install this device in the following environments.
1) Areas with high humidity where condensation is likely to occur
2) Areas exposed to corrosive or explosive gases
3) Areas exposed to vibration or shock of levels higher than that specifi ed
4) Areas exposed to contact with water
5) Areas exposed to too much steam or dust
♦ Installation
● Install this device in the control panel. In installation, provide clearance between the up-
per / lower parts of this device and the structure or parts to have good ventilation and to
ease maintenance.
● Be careful not to have wire offal or cutting chips in this device.
Otherwise, fi re, failure or malfunction may occur.
● Do not disassemble or modify this device. Otherwise, failure, malfunction, injury or fire
may occur. If repair or modifi cation is performed not by Panasonic Electric Works SUNX,
the warranty is not applied.
● Do not touch a conductive part of this device. Otherwise, malfunction or failure may occur.
● Since the case of this device is plastic, do not give strong impact including drop. Other-
wise, it may be broken.
♦ Machine for installation
● This product start the operation after 2 seconds from turning ON the power. Thus, set
the control system properly works with the timing.
● Be sure to carry out the wiring in the power supply OFF condition.
● All electrical wiring should conform to the regional electrical regulations and laws.
The wiring should be done by engineer(s) having the special electrical knowledge.
● Do not run the sensor wires together with high-voltage lines or power lines or put them
together in the same raceway. This can cause malfunction due to induction.
● In case of extending the cable of sensor safety liquid sensor SQ4-A series, use the cab
tire cable of 0.3mm
less.
● Do not control the device only at one control output 1 / 2 (OSSD 1 / 2).
● In order that the output is not turned ON due to earth fault of the control output 1 / 2
(OSSD 1 / 2) terminal, be sure to ground to 0V side (PNP output) / +24V side (NPN output).
♦ Maintenance
● When replacement parts are required, always use only genuine supplied replacement
parts. If substitute parts from another manufacturer are used, the device may not come
to detect, resulting in death or serious injury.
● The periodical inspection of this device must be performed by an engineer having the
special knowledge.
● After maintenance or adjustment, and before starting operation, test this device following
the procedure specifi ed in “Chapter 4 Maintenance.”
● Clean this device with a clean cloth. Do not use any volatile chemicals.
2
or more of conductor area and the total length should be 30m or
S1-G-1-2009, S2-W-5-2009
This product is pursuant to following standard.
<SEMI Standard>
SEMI-S2-0310a
Regarding EU Machinery Directive, a Notifi ed Body, TUV SUD, has certifi ed with the type ex-
amination certifi cate.
With regard to the standards in US / Canada, a TUV SUD has certifi ed for C-TUV US Mark.
The pursuant to SEMI for this device has been evaluated by TUV SUD JAPAN.
<Reference>
The conformity to JIS and ANSI for this device has been evaluated by ourselves.
The C-TUV US Mark
This device conforms to the EMC Directive and the Machinery directive. The
cates that this device conforms to the EMC Directive.
mark marked on this device shows that this device has certifi ed with the type examination certifi cate.
indicates compliance with both CSA of Canada and US requirements.
mark on the product indi-
When this device is used in a place other than the places shown above, be sure
to confi rm the standards or regulations applicable in each region or country before
use.
This device is the controller for safety liquid leak sensor with the following features:
● This device and safety liquid leak sensor SQ4-A series are combined for operation.
● Maximum of 4 safety liquid leak sensors can be connected to this device.
● With the output polarity selection switch of the controller, the control output 1 / 2 (OSSD 1 / 2)
can be switched to the PNP / NPN output. SQ4-A□-P PNP output type and SQ4-A□-N NPN
output type cannot be used together.
● Replacement of the relay is not required with the semi-conductor output.
2-2 Names and Functions of Parts
1. OSSD output
indicator (Green)
2. OSSD output
indicator (Red)
3. Interlock
indicator (Yellow)
4. Test input
indicator (Orange)
9. Digital error indicator (Red)
10. Sensor connector
5.
Sensor monitor output
1 indicator (Orange)
6.
Sensor monitor output
2 indicator (Orange)
7.
Sensor monitor output
3 indicator (Orange)
8.
Sensor monitor output
4 indicator (Orange)
No. 1
No. 2
No. 3
No. 4
11. Control output polarity
selection switch
13. Safety input mode
setting switch
14.
Sensor connection
number setting switch
12. Non-safety output polarity
selection switch
15. I/O terminal block (14 poles)
17. Input terminal block (6 poles)
16. Input terminal (6 poles)
OSSD output indicator (Green)
1
[OSSD ON]
OSSD output indicator (Red)
2
[OSSD OFF]
Interlock indicator (Yellow)
3
[INLK]
Test input indicator (Orange)
4
[TEST]
NamesFunctions
Lights when control output 1/2 (OSSD1 / 2) is ON.
Lights when control output (OSSD 1 / 2) is OFF.
Lights for interlock goes OFF for an error or when control output 1 / 2
(OSSD 1 / 2) is ON.
Lights when test input terminal is open (effective).
Light up when auxiliary detection output of each sensor is ON.
Blink when sensor error is occurred. For details, refer to “Chapter 5 Trou-bleshooting.”
It lights in 7 segments for an error.
For details, refer to “Chapter 5 Troubleshooting.”
Connect safety liquid leak sensor SQ4-A series. (Maximum 4)
To connect multiple sensors, use the connector from No. 1.
PNP output type and NPN output type cannot be used together.
The polarities of control output 1 / 2 (OSSD 1 / 2) are set to the PNP output
or the NPN output mode.
The polarities of safety input 1 / 2 are set to the PNP input or the NPN input
mode.
Polarities of non-safety output ERR, SUB, AUX1 to 4 are set to the PNP
output or the NPN output.
When the safety input 1 / 2 is in contact
mode, it is connected to the SI+ terminal
for power supply.
When safety input mode is invalid and it is
in semiconductor input mode, not used.
When the safety input 1 / 2 is in contact
mode, it is connected to the SI- terminal for
power supply.
When safety input mode is invalid and it is
in semiconductor input mode, not used.
Common terminal when the safety input 1
/ 2 is the semiconductor input mode and in
the NPN output.
Common terminal when the safety input 1
/ 2 is the semiconductor input mode and in
the PNP output.
It is connected to the SO+ terminal when the
safety input
It is connected to the SO- terminal when the
safety input
The controller can be mounted on the 35mm width DIN rail.
<Mounting method>
Step 1 Fit the tab on the opposite side of the DIN rail stopper into the 35mm width DIN rail.
Step 2 Press down the tab on the other side against the 35mm width DIN rail to fi t it.
DIN rail stopper
1
2
3
35mm width DIN rail
<Removing method>
Insert a fl athead screwdriver to the groove on the DIN rail stopper and pull out the stopper.
Step 1
Step 2 Push the controller to the other side of the DIN rail stopper.
Step 3 While maintaining the condition in the procedure 2, lift up the controller to remove it.
1
Flathead screwdriver
3
2
1
DIN rail stopper
Take care that if the controller is lifted with the stopper remained inside, the tabs
crack
Also the controller can be mounted with M4 pan head screw (length: 12mm or more) (purchase
separately). The tightening torque should be 1.2N·m or less.
Mounting holes dimension
M4 pan head screw
(length: 12mm or more)
(Purchase separately)
● Take countermeasure against the system to be applied for this device so as not
to carry out the dangerous performance caused by the earth failure. Failure to
do so could cause invalid for the system stop, resulting in death or serious injury.
● In order that the output is not turned ON due to earth fault of control output 1 / 2
(OSSD 1 / 2) wires, be sure to ground to 0V side (PNP output) / +24V side (NPN
output).
<Reference>
Use a safety relay unit or an equivalent control circuit in safety for FSD.
2-4-1 Power Supply Unit
Wire correctly using a power supply unit which conforms to the laws and standards of the region where this device is to be used. If the power supply unit is
non-conforming or the wiring is improper, it can cause damage or malfunction of
this device.
<Reference>
A specialist who has the required electrical knowledge should perform the wiring.
The power supply unit must satisfy the conditions given below.
1) Power supply unit authorized in the region where this device is to be used.
2) Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to EMC Directive and Low-voltage Directive (only for requiring CE marking conformation).
3) Power supply unit conforming to the Low-voltage Directive and with an output of 100VA or less.
4) The frame ground (F.G.) terminal must be connected to ground when using a commercially
available switching regulator.
5) Power supply unit with an output holding time of 20ms or more.
6) In case a surge is generated, take countermeasures such as connecting a surge absorber to
the origin of the surge.
7) Power supply unit corresponding to CLASS 2 (only for requiring C-TUV US Listing Mark conformation).
When the sensor is ON, the controller self-diagnoses the output circuit.
The output transistor is cyclically OFF. (Refer to the fi gure below.)
When feedback of the OFF signal is given, the controller evaluates that the output circuit is normal. If feedback of the OFF signal is not given, the controller evaluates that the output circuit or
wiring has an error and the control outputs 1 / 2 (OSSD 1 / 2) maintains OFF status.
Perform connection paying attention to the input response time of the unit connected to this device. The unit may malfunction due to OFF signal of this device.
2-4-3 Connecting to the Terminal Block of the Controller
● In connection to the terminal block of the controller, mount a single wire or stranded wire (lead
wire) with a ferrule (sleeve) terminal (prepared separately) as shown in the fi gure below, and
insert it to the back of the hole.
● When it is correctly inserted, it is locked and not removed by pulling. If it is pulled with strong
force, it may be disconnected.
● To connect a stranded wire (lead wire) without using a ferrule (sleeve) terminal, mount it
while holding the release button.
● To disconnect a single wire or stranded wire (lead wire), pull out the single wire or stranded
wire (lead wire) while pressing the release button.
● 0.2 to 1.5mm
2
(AWG 24 to 16) is recommend for single wire or stranded wire (lead wire).
2-4-4 Connection / Removal of Controller and Safety Liquid Leak Sensor SQ4-A Series
When wiring safety liquid leak sensor to this device, mount easy insulation displacement connector CN-EP□ (optional) to safety liquid leak sensor.
Used easy insulation displacement connector depends on type of safety liquid leak sensor,
so refer table below.Also, In case the cable of the safety liquid leak sensor is extended, use
different type of displacement conecotor. Choosing easy insulation displacemnet conector
depends on the wire cover diameter.
TypeModel No. Crimp color Proper sensorCable typeWire cover diameter.
Displacement
connector
<Name of parts of easy insulation displacement connector (Optional)>
<Description of terminal of easy insulation displacement connector (Optional)>
1 2 3 4
<Connecting method>
Step 1 Process the cable as shown in the fi gure below.
CN-EP2YellowSQ4-A21-□PVC cableø1.0 to ø1.15mm
CN-EP3OrangeSQ4-A22-□PFA cableø0.6 to ø0.9mm
Step 5 Insert the easy displacement connector into sensor connector No. 1 of this device.
Maximum 4 safety liquid leak sensor can be connected.
Sensor connector
that has been crimped once cannot
CN-EP2 (for PVC cable, 5
Insert
Wired easy insulation displacement connector
on the safety liquid leak sensor.
● When connecting to the sensor connector, be sure connect the safety liquid
leak sensors from No. 1 in order. If you connect in disorder, the controller becomes lockout status and does not work.
● In case connecting PNP output type of safety liquid leak sensor, set to PNP side
the control output polarity selection switch of this device. Also, in case connecting NPN output type set to PNP side the control output polarity selection switch
of this device.
Step 6 Depending on No. of the safety liquid leak sensor connecting, set the sensor connection
Step 1 Pull it out from this device while holding the lock release lever of easy insulation dis-
placement connector.
Easy insulation displacement connector
Pull
Hold lock
release lever
When pulling out the easy insulation displacement connector, be sure to hold the
lock release lever. in case pulling out without holding the lock release lever, the
connector or the cable may break.
This device is equipped with a self-diagnosis function.
The device performs self-diagnosis when the power is supplied and during operation.
If an error is found, lockout occurs at the time and the control outputs 1 / 2 (OSSD 1 / 2) are
fi xed to OFF. Refer to “Chapter 5 Troubleshooting” to eliminate the cause of the error.
3-2 Interlock Function
For control output 1 / 2 (OSSD 1 / 2), manual / auto reset in interlock can be selected.
Manual / Auto reset can be selected by the wiring of the reset input terminals (X1, X2, and X3).
In using the interlock function, make sure that there is no operator in the dangerous zone. Otherwise, death or injury may occur.
3-2-1 Manual Reset
Even if detecting output of sensor is ON (without liquid leak), control outputs 1 / 2 (OSSD 1 / 2)
cannot be automatically ON.
A reset button and a back check circuit (KA, KB) should be prepared between X1 and X2 to
monitor an external device. If a back check circuit (KA, KB) is not required, only the reset button
should be prepared.
When the sensor is ON, it can be recovered with start-up of the external reset button.
<When back check circuit is required>
X1X2
Reset button
<When back check circuit is not required>
X1X2
Reset button
Note: The reset will be canceled in case cleaning of sub detection part is not enough or detecting auxiliary output
(white) of safety leak sensor is broken.
KAKB
Mount the reset button a place where the entire dangerous zone can always be
known and the button can be operated outside the dangerous zone.
When the detecting output of sensor is ON (without liquid leak), control outputs 1 / 2 (OSSD 1 / 2)
can be automatically ON.
To monitor an external device, a back check circuit (KA, KB) should be prepared between X1
and X3. If a back check circuit (KA, KB) is not required, the circuit between X1 and X3 should
be shorted.
<When back check circuit is required>
<When back check circuit is not required>
Note: The reset will be canceled in case cleaning of sub detection part is not enough or detecting auxiliary output
(white) of safety leak sensor is broken.
30ms or more
20ms or less
X1X2
X1X2
100ms or less
KAKB
<Time chart>
Sensor detection
output
Control output 1 / 2
(OSSD 1 / 2)
21
When this device is operated in auto reset, auto recovery of the system after
control output shutoff should be prevented with a safety relay unit.
(From EN 60204-1)
It is the function to check normal operation by turning ON / OFF control outputs 1 / 2 (OSSD 1 / 2)
of the controller without generating a liquid leak condition at the sensor.
When the test input terminal between T1 and T2 is open, valid operation can be selected, and
when it is shorted, invalid operation (normal operation) can be selected.
Use a conductor (contact, copper wire, etc.) for short-circuit. A semiconductor (transistor) etc.
may not ensure normal operation.
<Time chart for manual reset selection>
Reset input
Test input
Control output 1 / 2
(OSSD 1 / 2)
Open
Shortcircuit
ON
OFF
ON
OFF
<Time chart for auto reset selection>
Test input
Control output 1 / 2
(OSSD 1 / 2)
ON
OFF
ON
OFF
Do not use the test input function for the purpose of stopping the machine in
which this device is mounted. Otherwise, death or injury may occur.
It is the function to control outputs 1 / 2 (OSSD 1 / 2) of this device with the safety contact connected to safety input terminals SIN1 and SIN2 or the detection signal of the safety sensor.
When safety inputs 1 / 2 are OFF, control outputs 1 / 2 (OSSD 1 / 2) are forcibly OFF.
The time difference for operation of safety inputs 1 / 2 from OFF to ON or ON to OFF should be
1 second or less. In case the time exceed more than one second, This device become lockout
status and control output 1 / 2 (OSSD 1 / 2) becomes OFF status.
In shipment, safety input mode setting switch of this device is set to contact input mode (switch
No. 1 to 4: OFF). For connection of the safety contact, short circuit between SI+ and SO+, and
between SI- and SO-.
[Contact input mode]
Safety input mode
setting switch
Safety contact
To connect the safety sensors, set the semiconductor input mode (switch No. 1 and 3 to OFF
and switch No. 2 and 4 to ON) and open the circuits between SI+ and SO+, and between SIand SO-. Safety sensors can be connected to this device.
[Semiconductor input mode]
<PNP output>
Control output polarity
selection switch
Safety input mode
setting switch
Safety sensor
+V
0V
+V
0V
Control output 1 (OSSD 1)
Control output 2 (OSSD 2)
+V
0V
+V
0V
Control output 1 (OSSD 1)
Control output 2 (OSSD 2)
Power supply
+V
0V
This device can connect one st of safety sensor. However, response time of the
connected safety sensor are added
Response time of safety sensor
<Example>
In case using SF4C-H□ as safety sensor
Response time of safety sensor + response of this device + response time of sensor head
= 7ms + 20ms + 10ms
=37ms
When connecting control output terminal Y1 of other SQ4-C11 and safety input terminal SIN1,
and connecting control output terminal Y2 of other SQ4-C11 and safety input terminal SIN2, it
can also be used as serial connection.
When safety inputs 1 / 2 are not used, set the No. 1 and 3 of “safety input mode switches” to
ON and No. 2 and 4 to OFF, and open the safety input terminals of SIN1 / SIN2, SIN+ / SIN-,
SI+ / SI- and SO+/ SO-.
[Invalid]
Safety input mode
setting switch
Contact input mode
(Safety contact)
Semiconductor
input mode
(Safety sensor)
NC (normal close) typeOperation for ONOperation for OFF
“Closed” for safe condition
(emergency stop switch, etc.)
ON for light interruption
(light curtain, scanner, etc.)
ON for approach
(safety switch, etc.)
SIN1 and SIN+ are “Close”.
SIN2 and SIN- are “Close”.
Safety sensor is ON.Safety sensor is OFF.
SIN1 and SIN+ are “Open”.
SIN2 and SIN- are “Open”.
When control outputs 1/ 2 (OSSD1 / 2) of other device are connected to the safety
input 1 / 2 of this device, mount in the same control panel.
● When this device is used with PNP output (or NPN output), use the PNP out-
put type (or NPN output type) for the safety sensor. If a different output type is
used, control outputs 1 / 2 (OSSD 1 / 2) are OFF.
● Use the sensor with the cross-wire monitoring function for control output 1 / 2
(OSSD 1 / 2). Connect wires to both safety inputs 1 and 2. Note that only one
side connection does not lead to normal operation. Use the safety contact with
two NC (normal close) contacts and connect wires to both safety inputs 1 / 2.
Note that only one side connection does not lead to normal operation.
If an error is found, refer to “Chapter 5 Troubleshooting” and contact a professional engineer for the details.
Contact us if you are not sure about the corrective action.
Copy inspection sheets, fi ll the check columns and fi le them.
4-1 Daily Inspection
Check the following items before start-up and confi rm that there is no error. If this
device is operated in a failed condition without inspection, there may be a risk of
death or severe injury.
Inspection items (Daily inspection)
Check
column
□There shall be no scratch, bend or breaking of wires.
□Connectors shall be securely connected.
When the test input terminal T1-T2 is open, make sure that control outputs 1 / 2 (OSSD 1 / 2)
□
are OFF. At this time, effect of external noise can be inspected. If there is effect of external noise,
eliminate the cause and perform re-inspection.
4-2 Periodic Inspection (Every Six Months)
Check the following items every 6 months and confi rm that there is no error. If this
device is operated in a failed condition without inspection, there may be a risk of
death or severe injury.
Periodic Inspection (Every Six Months)
Check
column
The machine shall be designed not to prevent safety mechanism such as stop or emergency stop.
□
Modifi cation or change of the machine control system that disturbs the safety mechanism shall not
□
be performed.
□Output from this device shall be correctly detected.
□Wiring from this device shall be correctly performed.
The number of operation cycle (time) for a part that has a service life (relay, etc) shall be less than
□
the rated operation cycles (time).
□Screws and connectors related to this device shall not be loose.
□
There shall be no additional object that generates disturbing light or refl ecting light near the sensor.
Inspection items
Inspection items
4-3 Inspection after Maintenance
For the following cases, perform inspection for all items of “4-1 Daily Inspection” and
“4-2 Periodic Inspection (Every Six Months).”
1) When this device or sensor part is replaced
2) When an error is felt on operating condition of this device or sensor
3) When the location or installation environment of this device is changed
4) When wires or routing method of wires are changed
5) When FSD (Final Switching Device) parts are changed
6) When FSD (Final Switching Device) settings are change
The power voltage is out of the
specifi cation value.
Connectors are not securely
connected.
Test input is opened
Wiring to reset is
not performed.
Resetting is not
cancelled.
Relay is fused.Replace the relay.
Relay response
time is long.
The start-up re-
set signal is not
input. (Manual)
Connect the power supply correctly.
Check if the power capacity is suffi cient.
Set the power voltage correctly.
Connect connectors securely.
Short-circuit the test input terminals between T1
and T2.
Wire the reset input terminal (manual reset: between X1 and X2 or auto reset: between X1 and
X3) correctly.
To ensure the system safety, use the NC contact
of the forced guide relay.
Replace the relay with the one of appropriate
response time.
Use the momentary switch.
Replace the switch.
<Digital error indicator (red)>
DisplaySymptom CauseRemedy
Incorrect number of
sensors
Sensor error
Safety input 1 / 2
circuit error
Control outputs 1 /
,
2 (OSSD 1 / 2) output circuit error
The number of sensors connected does not conform to the
value of the sensor number setting switch.
Or the number is not matched
due to failure of sensors.
The sensors connected do not
operate correctly.
Safety input terminals SIN1 and
SIN2 are shorted.
Control output terminal Y1 or Y2
is shorted with 0V or +V.
Shorting between control output terminals Y1 and Y2 or with
other input / output lines is
found.
Overcurrent runs in control output terminal Y1 or Y2.
The settings of the control output
polarity selection switch do not
conform to combinations of control output terminals Y1 and Y2
wires.
Output circuit error
Match the setting of this device with the
number of sensors connected.
Set the sensor connection number setting
switch correctly.
Replace the failed sensors.
Be sure sensor is ON
Turn ON power supply again and the status is
not changed. Replace the sensor
Sensor monitoring output indicator connected to broken sensor and indicator of
the failed sensor brink.
Check wires of safety input terminals SIN1
and SIN2.
Check if safety contacts or safety sensors are
broken, and replace them as necessary.
Wire control output terminals Y1 and Y2
correctly.
Refer to “2-4 Wiring.”
Use the current value within the specifi cation
range of control output terminals Y1 and Y2.
Refer to “6-1 Specifi cations. ”
Set the control output polarity selection switch
correctly.
Refer to “2-2 Names and Functions of Parts.”
Wire control output terminals Y1 and Y2
correctly. Refer to “2-4 Wiring.”
Response time100ms or less (excluding the response time of the sensor)
Operation mode
(Output operation)
Protection circuit
(Short circuit protection)
Categories usedDC-12, DC-13
Lockout outputOFF for lockout (Rating: Same as sensor monitor output)
Auxiliary output
Interlock function / lockout
cancel function
Test input functionIncorporated
External device monitor function
Safety input functionIncorporated
Control output polarity
selection function
Non-safety output polarity
selection function
Sensor connection number
setting function
Overvoltage category
PNP output type / NPN output type can be connected. (Mixture is not allowed.)
<Selecting PNP output>
• Maximum source current: 200mA
• Applied voltage: Same as power voltage
• Residual voltage: 2.5V or less
• Leak current: 200μA or less
• Maximum load capacity: 1.0μF
(from no load to maximum output current)
• Load wiring resistance: 3Ω or less
<Selecting PNP output>
• Maximum source current: 60mA
• Applied voltage: Same as power voltage
(between sensor monitor output to 0V)
• Residual voltage: 2.5V or less
Normal operation: ON (output for each sensor)
Sub detection and main detection: OFF (output for each sensor)
*When the connecting sensor is 1 stage detection type, the operation mode is the
same as that of the OSSD output.
Negative logic output of control output 1 / 2 (OSSD 1 / 2) (Rating: Same as sensor monitor output)
4 units (with easy insulation displacement connector)
PNP / NPN open collector transistor (switch type)
(between control output to +V)
(at 200mA source current)
(including power OFF)
Normal or sub detection: ON
Main detection or installation error: OFF
PNP / NPN open collector transistor (switch type)
(at 60mA source current)
[Auxiliary output ON when control output 1 / 2 (OSSD1/2) is OFF]
TypeController for safety liquid leak sensor SQ4-A series
Model No.SQ4-C11
Protection structureIP20 (IEC) (However, it should be in IP54 protection structure of control panel)
Contamination level2
Ambient temperature
Ambient humidity35 to 85% RH, Storage: 35 to 85%RH
Altitude for use2,000m or less above sea level (Note 5)
Withstand voltageAC1,000V for 1 minute (between total charge area and case)
Insulation resistance20MΩ or more at DC 500
Vibration resistance
Impact resistance
PFHd (Note 1)2.55 × 10
MTTFd (Note 2)100 years or more
SFF (Note 3)99%
HFT (Note 4)3
Sub-system timeType B (IEC 61508-2)
Mission time20 years
Detectable failure modeOutput short, broken internal circuit and etc.
Connecting method
MaterialMain unit case: PC / ABS (alloy)
MassApprox. 300g
Applicable standard
Notes: 1) PFHd: Probability of dangerous failure per hour
2) MTTFd: Mean time to dangerous failure
3) Safe failure fraction
4) Hardware failure tolerance
5) Do not use or storage in environment of more than atmospheric pressure at sea level.
Malfunction: 10 to 55 Hz multiple amplitude 0.75mm 30 minutes for each X, Y and
Z directions (in power supply)
Malfunction: Peak acceleration 294m/s2, Pulse continuation time 11ms times for each X, Y
and Z direction, 3 times for 6 directions of 3 orthogonal axes each other (in power supply)
Sensor connection: Easy insulation displacement connector
Power supply and input / output: Cage clamp type removable connector terminal
EN 60947-5-2, EN 55011 ClassA, EN 61000-6-2, EN 50178
EN ISO 13849-1 (Category 4, PLe), EN 61508-1 to 7 (SIL3), IEC 60947-5-2
ISO 13849-1 (Category 4, PLe), IEC 61508-1 to 7 (SIL3), IEC 62061 (SIL3)
JIS B 9705-1 (Category 4), JIS C 0508-1 to 7 (SIL3), UL 1998 (Class1), UL 991
-10 to +55°C (No dew condensation or icing allowed.)
This directive is for an assembly of linked parts or components, energized by an electricity, compressed air or oil pressure, etc. and at
least one of which moves, and a component which fulfi lls a safety
function and is released into the market by itself.
The directives is to any electric or electronic devices which will create more than a limited amount of RF interference, or will withstand
a certain amount of Electro Magnetic fi elds while operating as in-
tended within specifi cations.
Specifi es the limits and methods of measurement of radio distur-
bance characteristics of industrial, scientific and medical (ISM)
radio-frequency equipment.
The standard that specifies the safety-related matters of machine
safety / control system. They give roles for level (category) of structure and fault detection reliability and for level of safety future performance capability (PL: Performance Level).
UL standard for safety-related software in programmable components.
Abbreviation of Electro-Sensitive Protective Equipment
Abbreviation of
A component of a part of ESPE that turns OFF when detecting device worked in normal operation.
Abbreviation of
The component of the machine’s safety related control system that
open-circuits the MPCE circuit when the OSSD operates due to the
light from the light curtain being blocked.
It is one of the safe status of this device. Operation is stopped if
the self-diagnosis function determines that an irrecoverable failure
(OSSDs do not operate normally, etc.) has occurred.
(1) Subject to the exclusions stated in 2 (EXCLUSIONS) herein below, Panasonic Electric Works SUNX warrants the Products to
be free of defects in material and workmanship for a period of one (1) year from the date of shipment under normal usage in
environments commonly found in manufacturing industry.
(2) Any Products found to be defective must be shipped to Panasonic Electric Works SUNX with all shipping costs paid by Pur-
chaser or offered to Panasonic Electric Works SUNX for inspection and examination. Upon examination by Panasonic Electric
Works Panasonic Electric Works SUNX, Panasonic Electric Works SUNX will, at its sole discretion, repair or replace at no
charge, or refund the purchase price of, any Products found to be defective.
2. EXCLUSIONS:
(1) This warranty does not apply to defects resulting from any cause:
(i) which was due to abuse, misuse, mishandling, improper installation, improper interfacing, or improper repair by Purchaser,
(ii) which was due to unauthorized modification by Purchaser, in part or in whole, whether in structure, performance or
specifi cation,
(iii) which was not discoverable by a person with the state-of-the-art scientific and technical knowledge at the time of
manufacture,
(iv) which was due to an operation or use by Purchaser outside of the limits of operation or environment specified by
Panasonic Electric Works SUNX;
(v) which was due to normal wear and tear;
(vi) which was due to Force Majeure; and
(vii) which was due to any use or application expressly discouraged by Panasonic Electric Works SUNX in 4 (CAUTIONS FOR
SAFE USE) hereunder.
(2) This warranty extends only to the fi rst purchaser for application, and is not transferable to any person or entity which purchased
from such purchaser for application.
3. DISCLAIMERS
(1) Panasonic Electric Works SUNX's sole obligation and liability under this warranty is limited to the repair or replacement, or re-
fund of the purchase price, of a defective Product, at Panasonic Electric Works SUNX's option.
(2) THE REPAIR, REPLACEMENT, OR REFUND IS THE EXCLUSIVE REMEDY OF THE PURCHASER, AND ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF PROPRIETARY RIGHTS,
ARE HEREBY EXPRESSLY DISCLAIMED. IN NO EVENT SHALL PANASONIC ELECTRIC WORKS SUNX AND ITS
AFFILIATED ENTITIES BE LIABLE FOR DAMAGES IN EXCESS OF THE PURCHASE PRICE OF THE PRODUCTS,
OR FOR ANY INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, GENERAL TERMS
AND CONDITIONS 4 OR ANY DAMAGES RESULTING FROM LOSS OF USE, BUSINESS INTERRUPTION, LOSS OF
INFORMATION, LOSS OR INACCURACY OF DATA, LOSS OF PROFITS, LOSS OF SAVINGS, THE COST OF
PROCUREMENT OF SUBSTITUTED GOODS, SERVICES OR TECHNOLOGIES, OR FOR ANY MATTER ARISING OUT OF
OR IN CONNECTION WITH THE USE OR INABILITY TO USE THE PRODUCTS.
4. CAUTIONS FOR SAFE USE
(1) The applications shown in the catalogue are only suggestions, and it is Purchaser's sole responsibility to ascertain the fi t-
ness and suitability of the Products for any particular application, as well as to abide by Purchaser's applicable local laws and
regulations, if any.
(2) Never use the Products NOT rated or designated as “SAFETY SENSOR” in any application involving risk to life or property.
When such a use is made by Purchaser, such Purchaser shall indemnify and hold harmless Panasonic Electric Works SUNX
from any liability or damage whatsoever arising out of or in relation to such use.
(3) In incorporating the Products to any equipment, facilities or systems, it is highly recommended to employ fail-safe designs,
including but not limited to a redundant +++design, fl ame propagation prevention design, and malfunction prevention design
so as not to cause any risk of bodily injury, fi re accident, or social damage due to any failure of such equipment, facilities or
systems.
(4) The Products are each intended for use only in environments commonly found in manufacturing industry, and, unless expressly
allowed in the catalogue, specifi cation or otherwise, shall not be used in, or incorporated into, any equipment, facilities or
systems, such as those:
(a) which are used for the protection of human life or body parts;
(b) which are used outdoors or in environments subject to any likelihood of chemical contamination or electromagnetic
infl uence;
(c) which are likely to be used beyond the limits of operations or environments specifi ed by Panasonic Electric Works SUNX
in the catalogue or otherwise;
(d) which may cause risk to life or property, such as nuclear energy control equipment, transportation equipment (whether on
rail or land, or in air or at sea), and medical equipment;
(e) which are operated continuously each day for 24 hours; and
(f) which otherwise require a high level of safety performance similar to that required in those equipment, facilities or systems
as listed in (a) through (e) above.
5. EXPORT CONTROL LAWS
In some jurisdictions, the Products may be subject to local export laws and regulations. If any diversion or re-export is to be
made, Purchaser is advised to abide by such local export laws and regulations, if any, at its own responsibility.