Before Use
Fieldbus device
EX250 SAS3/EX250 SAS5
EX250 SAS7/EX250 SAS9
Thank you for purchasing an SMC EX250-SAS3/EX250-SAS5/EX250-SAS7/
EX250-SAS9 Fieldbus device.
Please read this manual carefully before operating the product and make sure you
understand its capabilities and limitations. Please keep this manual handy for
future reference.
To obtain the operation manual about this product and
control unit, please refer to the SMC website
(URL http://www.smcworld.com) or contact SMC directly.
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or
equipment damage.
These instructions indicate the level of potential hazard with the labels of
"Caution", " Warning" or "Danger". They are all important notes for safety and
must be followed in addition to International standards (ISO/IEC) and other safety
regulations.
Caution:
CAUTION indicates a hazard with a low level of risk which, if
not avoided, could result in minor or moderate injury.
Warning:
WARNING indicates a hazard with a medium level of risk
which, if not avoided, could result in death or serious injury.
Danger:
DANGER indicates a hazard with a high level of risk which, if
not avoided, will result in death or serious injury.
Operator
This operation manual is intended for those who have knowledge of machinery
using pneumatic equipment, and have sufficient knowledge of assembly,
operation and maintenace of such equipment. Only those persons are allowed
to perform assembly, operation and maintenance.
Read and understand this operation manual carefully before assembling,
operating or providing maintenance to the product.
Safety Instructions
Warning
Do not disassemble, modify (including changing the printed circuit board) or repair.
An injury or failure can result.
Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
Do not operate in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
This product is not designed to be explosion proof.
If using the product in an interlocking circuit:
•Provide a double interlocking system, for example a mechanical system.
•Check the product regularly for proper operation.
Otherwise malfunction can result, causing an accident.
The following instructions must be followed during maintenance:
•Turn off the power supply.
•Stop the air supply, exhaust the residual pressure and verify that the air is released before performing
maintenance.
Otherwise an injury can result.
Caution
After maintenance is complete, perform appropriate functional inspections.
Stop operation if the equipment does not function properly.
Safety cannot be assured in the case of unexpected malfunction.
Provide grounding to assure the noise resistance of the product.
Individual grounding should be provided close to the product with a short cable.
NOTE
•When conformity to UL is necessary the SI unit must be used with a UL1310
Class 2 power supply.
•The product is a UL approved product only if it has a
mark on the body.
Summary of Product elements
5
6
1
Tie-rod (2 pcs.)
2
4
Accessory
3
7
No.
Element
Description
1
Communication connector
Connect with AS-Interface communication line.
Power supply connector for
2
Supplies power to the solenoid valve and Output block.
output equipment
1
3
Input block connector
Connects the Input block.
4
Output block connector
Connects the solenoid valve, Output block and etc.
5
Display window
LED display shows the SI unit status.
6
Switch protective cover
Sets the address and baud rate etc. with the switch inside.
7
Grounding terminal (FE)
1
Used for grounding.
1: Available only for EX250-SAS3/EX250-SAS5.
Mounting and Installation
Installation
The SI unit does not have mounting holes, so it cannot be installed alone. Make sure to
connect the valve manifold.
Refer to the valve catalogue for valve manifold dimensions.
Assembly and disassembly of the SI unit
M3 hexagon screw
Tie-rod
Tightening torque: 0.6 Nm
Tightening torque: 0.6 Nm
End plate
SI unit
Valve manifold
Exchange of SI unit
•Remove screws from End Plate and release connection of each unit.
•Replace old SI unit with new one. (Tie-rod does not need to be removed.)
•Connect Input Block and End Plate and tighten removed screws by specified
tightening torque. (0.6 Nm)
Assembly and disconnection of unit
Addition of Input Block
•Remove screws from End Plate.
•Mount attached tie-rod.
•Connect additional Input Block.
•Connect End Plate and tighten removed screws by specified tightening torque.
(0.6 Nm)
Caution for maintenance
(1) Be sure to turn-off all power supplies.
(2) Be sure that there is no foreign object in any of units.
(3) Be sure that gasket is lined properly.
(4) Be sure that tightening torque is according to specification.
If these items are not kept, it may lead to the breakage of substrate or intrusion of
liquid or dust into the units.
Connecting cables
Select the appropriate cables to mate with the connectors mounted on the SI unit.
EX250-SAS3/EX250-SAS5
•Communication connector
M12 4-pin plug
No.
Description
Function
1
1
AS-i +
AS−Interface line (+)
2
4
2
(0 V)
Power supply for output equipment (-)
3
3
AS-i -
AS−Interface line (-)
4
(24 V)
Power supply for output equipment (+)
•Power supply connector for output equipment
M12 4-pin plug
No.
Description
Function
1
1
24 V
Power supply for output equipment (+)
2
4
2
N.C.
Unused
3
3
0 V
Power supply for output equipment (-)
4
N.C.
Unused
: Connected inside the SI unit.
Communication connector
Ground terminal
Power supply connector
for output equipment
•Connection example
M12 cable
Recommendation conductor cross-section: 1.5mm
2
AS-i standard cable
EX250-SAS3
(YELLOW CABLE)
AS-i standard cable
Connector for T-branch
(BLACK CABLE)
ASI FK M12 Hirschmann etc.
(IEC 603526)
The M12 cable, AS-i standard cable and connector for T-branch are not supplied by SMC.
Contact each manufacturer for the catalogue details etc.
Wire the cable for AS-Interface line so that the total voltage drop is 3 V or less.
EX250-SAS7/EX250-SAS9
•Communication connector
M12 4-pin, plug
No.
Description
Function
1
1
AS−Interface line (+)
2
4
2
(0 V)
RESERVE
3
3
AS-i -
AS−Interface line (-)
4
(24 V)
RESERVE
Communication connector
•Connection example
M12 cable
Recommendation conductor cross-section: 1.5mm
2
AS-i standard cable
EX250-SAS7
(YELLOW CABLE)
Connector for T-branch
ASI FK M12 Hirschmann etc.
(IEC 603526)
The M12 cable, AS-i standard cable and connector for T-branch are not supplied by SMC.
Contact each manufacturer for the catalogue details etc.
Wire the cable for AS-Interface line so that the total voltage drop is 3 V or less.
Setting
Address setting
HOLD/CLEAR setting
Over Current Protection setting SW
Address setting procedure via the AS-i line
To set this function, refer to SMC website (URL http://www.smcworld.com) for more detailed
information or contact us.
LED Indication
SI
CLEAR
IN
COM
SW
PWR
AUX
-ERR
-ERR
HOLD
ADDRESS SETTING
ADDR1
ADDR2
EX250
Description
LED
LED condition
EX250-SAS3/EX250-SAS5
EX250-SAS7/EX250-SAS9
PWR
Green LED is ON
Indicates that the power supply for AS-Interface line is turned ON.
Indicates that the power supply for
-
AUX
Green LED is ON
output equipment is turned ON.
(LED is OFF at normal condition)
Indicates that an input power supply over current is detected.
IN-ERR
Red LED is ON
(LED is OFF at normal condition)
Indicates a communication error.
Red LED is ON
(LED is OFF at normal condition)
COM-ERR
Indicates peripheral equipment error.
1
Red LED is flashing
(Over current of input power, blown fuse)
1: EX250-SAS3/EX250-SAS5: Input block
EX250-SAS7/EX250-SAS9: Input block, Output block, Solenoid valve
Troubleshooting
Technical documentation giving detailed troubleshooting information can be found on the
SMC website (URL http://www.smcworld.com).
Specifications
Connected load: 24 VDC Solenoid valve with surge voltage suppressor of 1.5 W or less
(manufactured by SMC)
Current consumption of power supply for SI unit operation: 0.1 A max.
Operating ambient temp.: +5 to +45
o
C
Storage ambient temp.: -20 to +60
C
o
1: Input terminal are not isolated from Power source.
2: Do not connect outside Power source to Input and Output terminals.
Technical documentation giving detailed specification information can be found on the SMC
website (URL http://www.smcworld.com).
Outline Dimensions
Technical documentation giving detailed outline dimensions information can be found on
the SMC website (URL http://www.smcworld.com).
URL http://www.smcworld.com
Akihabara UDX 15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, JAPAN
Phone: +81 3-5207-8249 Fax: +81 3-5298-5362
Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
© 2012-2017 SMC Corporation All Rights Reserved.
1
EX※※-OMP0021-A
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