Sierra Monitor Corporation Switch D M9BA User Manual

D-#S-TFK20GB  
Safety Instructions (  
)
Safety Instructions (  
)
continued  
continued  
Model Indication Method  
WARNING  
WARNING  
D M9 A  
Installation & Maintenance Manual  
Auto Switch (Solid State)  
Series D-M9NA / D-M9NAV  
D-M9PA/ D-M9PAV  
2) Installations in conjunction with atomic energy, railway, air navigation,  
vehicles, medical equipment, food and beverage, recreation equipment,  
emergency stop circuits, press applications, or safety equipment.  
3) Equipment intended for use in potentially explosive atmospheres.  
Applications which have the possibility of having negative effects on  
people, property or animals.  
Avoid incorrect wiring  
I
f wiring is incorrect, the switches will be damaged.  
When stripping the cable envelope, please pay attention to the  
Switch No.  
Lead wire length  
stripping direction.  
Output  
No number  
M
L
0.5m  
1m  
3m  
Insulator might be split or hurt depending on the directions.  
N
P
B
3wire NPN output  
3wire PNP output  
2wire  
Special safety analysis is required.  
D-M9BA / D-M9BAV  
Z
5m  
Design and selection  
EMC Directive 89/336/EEC  
EN61000-6-2:2001 Electromagnetic Compatibility (EMC).  
Generic standards - lmmunity for industrial environments.  
EN55011 A1+A2:2001 Limits and methods of measurement of radio disturbance  
characteristics of industrial, scientific and medical  
Confirm the specifications.  
Water -resistant type  
Electrical entry  
No number  
V
Read the specifications carefully and use this product appropriately.  
The product may be damaged or malfunction if it is used outside the  
range of specifications for load current, voltage, temperature or impact.  
In line  
Perpendicular  
radio-frequency equipment and light industrial environments.  
Operating environment  
Take precautions when multiple actuators are used close together.  
When multiple auto switch actuators are used in close proximity,  
magnetic field interference may cause the switches to malfunction.  
Maintain a minimum actuator separation of 40mm.  
Pay attention to the length of time that a switch is ON at an  
intermediate stroke position.  
When an auto switch is placed at an intermediate position of the stroke and  
a load is driven at the time the piston passes, the auto switch will operate,  
but if the speed is too great the operating time will be shortened and the  
load may not operate properly. The maximum detectable piston speed is:  
Do not use in an area where a magnetic field is generated.  
Auto switches can malfunction or magnets inside actuators can become  
demagnetized.  
Do not use in an environment where the auto switch will be  
continually exposed to water.  
Although switches satisfy IEC standard IP67 construction (JIS C 0920:  
watertight construction), avoid using switches in applications with continual  
exposure to water splash or spray. Poor insulation or swelling of the potting  
resin inside switches may cause malfunction.  
Safety Instructions  
This manual contains essential information for the protection of users and  
others from possible injury and property damage.  
D
-M9 A  
PC  
To ensure correct handling, please follow the instructions.  
Switch No.  
Output  
Please check that you fully understand the meaning of the following  
messages (signs) before going on to read the text, and always follow the  
instructions.  
Please read the Installation & Maintenance Manual of related apparatus and  
understand it before operating the unit.  
N
P
B
3wire NPN output  
3wire PNP output  
2wire  
Pre-wired connector  
Connector pin assignment  
A
B
D
[ms]  
Autoswitch operating range  
Do not use in an environment with oil or chemicals.  
Consult SMC if auto switches are to be used in an environment with  
coolant, cleaning solvent, various oils or chemicals. If auto switches are  
used under these conditions for even a short time, they may be adversely  
affected by improper insulation, malfunction due to swelling of the potting  
resin, or hardening of the lead wires.  
V [mm/s]  
M8-3pin connector  
M8-4pin connector  
M12-4pin connector  
Water -resistant type  
[ms]  
Load operating time  
IMPORTANT MESSAGES  
Read this manual and follow its instructions.  
Titles such as DANGER, WARNING, CAUTION and NOTE, will be followed by  
important safety information which must be carefully followed.  
Keep wiring as short as possible  
Although longer wiring does not affect the function, please keep it to  
100m or shorter  
Electrical entry  
No number  
V
In line  
Perpendicular  
Lead wire length  
S
M
0.5m  
1m  
Do not use a load that generates surge voltage.  
Do not use in an environment with temperature cycles.  
Consult SMC if switches are used where there are temperature cycles  
other than normal air temperature changes, as there may be adverse  
effects inside the switches.  
In extreme conditions, there is a possible result of  
Although a zener diode for surge protection is connected at the output side of  
a solid state auto switch, damage may still occur if the surge is applied  
repeatedly. When a load such as a relay or solenoid which generates surge is  
directly driven, use a type of switch with a built-in surge absorbing element.  
serious injury or loss of life.  
ACHTUNG  
Indicates a potentially hazardous situation which  
could result in death or serious injury if you do not  
follow instructions.  
WARNING  
Do not use in an area where surges are generated.  
Cautions for use in an interlock circuit  
When there are units (solenoid type lifter, high frequency induction furnace,  
motor, etc.) which generate a large amount of surge in the area around  
actuators with solid state auto switches, this may cause deterioration or  
damage to the switches. Avoid sources of surge generation and crossed lines.  
When an auto switch is used for an interlock signal requiring high reliability,  
devise a double interlock system to avoid trouble by providing a mechanical  
protection function, or by also using another switch (sensor) together with the  
auto switch. Also perform periodic maintenance and confirm proper operation.  
Indicates a potentially hazardous situation which if  
not avoided, may result in minor injury or  
moderate injury.  
CAUTION  
Avoid accumulation of iron waste or close contact with magnetic  
substances.  
When a large amount of iron waste such as machining chips or spatter has  
accumulated, or a magnetic substance (something attracted by a magnet) is  
brought into close proximity with an auto switch actuator, it may cause auto  
switches to malfunction due to a loss of the magnetic force inside the  
actuator.  
1.1 General recommendation  
These safety instructions are intended to prevent a hazardous situation  
and/or equipment damage.  
These instructions indicate the level of potential hazard by label of  
"Caution", "Warning" or "Danger".  
Ensure sufficient clearance for maintenance activities.  
When designing an application, be sure to allow sufficient clearance for  
maintenance and inspections.  
Specification  
Switch model  
D-M9NA D-M9NAV D-M9PA D-M9PAV D-M9BA D-M9BAV  
Mount / adjustment  
Do not drop or bump.  
number  
Wiring  
3 wire  
2 wire  
2
To ensure safety, be sure to observe ISO4414 (Note1), JIS B 8370  
(Note2) and other safety practices.  
Do not drop, bump or apply excessive impacts (1000m/s or more for solid  
Output  
NPN  
PNP  
state switches) while handling. Although the body of the switch may not be  
damaged, the inside of the switch could be damaged and cause a malfunction.  
Maintenance  
(Note 1):ISO 4414:Pneumatic fluid power - Recommendations for the application  
of equipment to transmission and control systems.  
Application  
Power voltage  
IC circuit/Relay/PLC  
5/12/24V DC (4.5 to 28V DC)  
10mA or less  
24V DC Relay/PLC  
Perform the following maintenance periodically in order to prevent  
possible danger due to unexpected auto switch malfunction.  
1) Securely tighten switch mounting screws.  
If screws become loose or the mounting position is dislocated,  
retighten them after readjusting the mounting position.  
2) Confirm that there is no damage to lead wires.  
Do not carry an actuator by the auto switch lead wires.  
Never carry an actuator by its lead wires. This may not only cause broken  
lead wires, but it may cause internal elements of the switch to be damaged  
by the stress.  
(Note 2):JIS B 8370:Pneumatic system axiom.  
Current  
consumption  
WARNING  
Mount switches using the proper tightening torque.  
If a switch is tightened beyond the range of tightening torque, the mounting  
screws, mounting brackets or switch may be damaged.  
On the other hand, tightening below the range of tightening torque may  
allow the switch to slip out of position.  
Mount a switch at the center of the operating range.  
Adjust the mounting position of an auto switch so that the piston stops at  
the center of the operating range (the range in which a switch is ON).  
(The mounting position shown in the catalog indicates the optimum  
position at stroke end.) If mounted at the end of the operating range  
(around the borderline of ON and OFF), operation may be unstable.  
Load voltage  
Load current  
28V DC or less  
24V DC(10 to 28V DC)  
2.5 to 40mA  
1.1.1. The compatibility of pneumatic equipment is the responsibility  
of the person who designs the pneumatic system or decides  
its specifications.  
To prevent faulty insulation, replace switches or repair lead wires,  
etc., if damage is discovered.  
40mA or less  
0.8V or less at load current of 10mA  
(2V or less at load current of 40mA)  
Internal  
4.0V or less  
Others  
voltage drop  
Since the products specified here are used in various operating  
conditions,their compatibility for the specific pneumatic system must  
be based on specifications or after analysis and/or tests to meet your  
specific requirements.  
For durability against water, elasticity, application at welding  
site, please consult us.  
Current leakage  
Operating time  
100 A or less at 24V DC  
1ms or less  
0.8mA or less  
If ON and OFF position (hysteresis) cause problems, please  
consult us.  
1.1.2. Only trained personnel should operate pneumatically operated  
machinery and equipment.  
Operating position : The red LED lights up.  
Indication light  
ON position  
Piston moving direction  
Piston moving direction  
Optimum operating position : The Green LED lights up.  
Compressed air can be dangerous if an operator is unfamiliar with it  
Assembly, handling or repair of pneumatic systems should be  
performed by trained and experienced operators.  
Electrical entry  
system  
Wiring  
Grommet  
Avoid repeatedly bending or stretching lead wires.  
Broken lead wires can result from wiring patterns which repeatedly apply  
bending stress or stretching force to the lead wires.  
Hysteresis  
Vinyl sheath cable  
Lead wire  
2
2.7 3.2 oval, 0.15mm , 2 wire (D-M9BA(V)), 3 wire (D-M9NA(V), D-M9PA(V))  
1.1.3. Do not service machinery/equipment or attempt to remove  
component until safety is confirmed.  
Impact  
2
Confirm proper insulation of wiring.  
OFF position  
1000m/s  
resistance  
1) Inspection and maintenance of machinery/equipment should only be  
performed after confirmation of safe locked-out control positions.  
2) When equipment is to be removed, confirm the safety process as  
mentioned above. Switch off air and electrical supplies and exhaust all  
residual compressed air in the system.  
3) Before machinery/equipment is re-started, ensure all safety measures to  
prevent sudden movement of actuators etc. (Supply air into the system  
gradually to create backpressure, i.e. incorporate a soft-start valve).  
Be certain that there is no faulty wiring insulation (contact with other  
circuits, ground fault, improper insulation between terminals, etc.)  
Damage may occur due to excess current flow into a switch.  
Insulation  
resistance  
50M or more under the test voltage 500V DC (between case and cable)  
1000V AC for 1 minute (between case and cable)  
-10 to 60  
Withstand  
voltage  
Do not wire with power lines or high voltage lines.  
Ambient  
Wire separately from power lines or high voltage lines, avoiding parallel wiring  
or wiring in the same conduit with these lines. Control circuits containing auto  
switches may malfunction due to noise from these other lines.  
temperature  
Protection  
structure  
IEC60529 criteria IP67, JISC0920 watertight construction  
Do not allow short circuit of loads.  
1.1.4. Contact SMC if the product is to be used in any of the following  
conditions:  
All models of switches do not have built-in short circuit protection circuits.  
Note that if a load is short circuited, the switch will be instantly damaged  
because of excess current flow into the switch.  
1) Conditions and environments beyond the given specifications, or if  
product is used outdoors.  
 

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