High Quality Xck-J Series Roller Lever Type Industrial Limit ...

Limiting switches are ideal electrical control switches in mechanical and other industries. They have features of complete specifications and varieties of types, compact structure, nice appearance, excellent performance, flexible and reliable action, easy installation, operation, maintenance and adjustment.
The switches are applicable to AC control circuits of 40 to 60Hz, with a voltage up to 500V or DC control circuits with a voltage up to 600V, and a current up to 10A to convert a mechanical signal for the purpose of controlling mechanical movement or performing sequential control.

AZ/ME/TZ Limit Switch Characteristics:

You will get efficient and thoughtful service from TMAZTZ.

1) Operation speed: 0.5mm-50cm/sec
2) Action frequency: Mechanically: 120times/min Electically: 30 times/min
3) Contact resistance: 25mΩ (mm)(initial)
4) Insulation resistance: 100MΩ Below (at 500VDC)
5) Bearing voltage: 1, 000VAC-1, 500VAC, 50/60Hz for one minute
6) Vibration: 10-55Hz, 1.5mm pairs swing
7) Hitting: Mechanic: 1, 000m/Sec2 (about 100G'S)
8) Surrounding temperature: -5 to +65
9) Humidity: 95% RH above
10) Life time: Mechanical: 10, 000, 000 times above Electrical: 500, 000 times above
11) Protection grade: IP65
Type: AZ-, AZ-, AZ-, AZ-, AZ-, AZ-, AZ-, AZ-, AZ-

WL Limit Switch

Characteristics:
1) Double-circuit limit switch, widely used.
2) High aluminum alloy enclosure.
3) Structure preventing oil, water and pressure.
4) Indicating plate with setting position installed in it, so it is easy to maintain.
5) Kinds of actuators is taken convenience for using.
6) Build-in contact stand has double-reed, so it has long mechanical life.
Type: WL-CA2, WL-CA32-41, WL-NJ-S2, WJ-CL, WL-D, WL-NJ, WL-D2, WL-CA2-2, WL-CA12

XCK Limit Switch

Features:
1) Limiting switches are ideal electrical control switches in Mechanical and other industries
2) Complete specifications and varieties of types
3) Compact structure, nice appearance, excellent performance, Flexible and reliable action
4) Easy installation, operation, maintenance and adjustment

Item

Data

Rating load

10 (4) A /250VAC, 6 (2) A 380VAC

Operation speed

5mm-0.5m/s

Operation frequency

Mechanical 120times/min

Electrical 30 times/min

Contact resistance

&#;25mΩ initial value

Insulation resistance

&#;100MΩ  DC500V

Withration voltage

Non-connection wire VAC

Every terminal VAC

Operating life

Electrical 100,000 above

Mechanical ,000 above

Protection degree

IP65

Operating temperature

-10°C-70°C

Operating humidity

If you are looking for more details, kindly visit One-way Top-roller Lever Limit Switch Wholesale.

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Limit Switch / Limited Switch / Limiting Switch (AZ / ME / TZ / WL / XCK)Limiting switches are ideal electrical control switches in mechanical and other industries. They have features of complete specifications and varieties of types, compact structure, nice appearance, excellent performance, flexible and reliable action, easy installation, operation, maintenance and adjustment.The switches are applicable to AC control circuits of 40 to 60Hz, with a voltage up to 500V or DC control circuits with a voltage up to 600V, and a current up to 10A to convert a mechanical signal for the purpose of controlling mechanical movement or performing sequential control.1) Operation speed: 0.5mm-50cm/sec2) Action frequency: Mechanically: 120times/min Electically: 30 times/min3) Contact resistance: 25mΩ (mm)(initial)4) Insulation resistance: 100MΩ Below (at 500VDC)5) Bearing voltage: 1, 000VAC-1, 500VAC, 50/60Hz for one minute6) Vibration: 10-55Hz, 1.5mm pairs swing7) Hitting: Mechanic: 1, 000m/Sec2 (about 100G'S)8) Surrounding temperature: -5 to +659) Humidity: 95% RH above10) Life time: Mechanical: 10, 000, 000 times above Electrical: 500, 000 times above11) Protection grade: IP65Type: AZ-, AZ-, AZ-, AZ-, AZ-, AZ-, AZ-, AZ-, AZ-Characteristics:1) Double-circuit limit switch, widely used.2) High aluminum alloy enclosure.3) Structure preventing oil, water and pressure.4) Indicating plate with setting position installed in it, so it is easy to maintain.5) Kinds of actuators is taken convenience for using.6) Build-in contact stand has double-reed, so it has long mechanical life.Type: WL-CA2, WL-CA32-41, WL-NJ-S2, WJ-CL, WL-D, WL-NJ, WL-D2, WL-CA2-2, WL-CA12Features:1) Limiting switches are ideal electrical control switches in Mechanical and other industries2) Complete specifications and varieties of types3) Compact structure, nice appearance, excellent performance, Flexible and reliable action4) Easy installation, operation, maintenance and adjustment

 

OF MAX

700g (6.86N)

RF MIN

180g (1.76N)

PT MAX

2.5MM

OT MIN

3MM

MD MAX

1.2MM

TT

5.8MM

Customers' Questions

Q1:How about the delivery time?
It's depends on the quantity, for example, PCS need to OEM,
delivery time is 3-7 days.

Q2:What quality you can offer to us?
We now can do 1/2 years warranty, during the warranty time we can exchange all defective products from customers for free.

Q3:Can you give me samples to test?
Yes.

Q4:What's you MOQ?
MOQ PCS, mixed order acceptable, welcome trial order.

Q5:What's the delivery term?
Both EXW and FOB Ningbo are acceptable.

Q6:What's the payment term?
We could start our discussion about payment term from second order on.

Q7:What's the shipment way?
Express:DHL, UPS, FedEx, TNT and SF express.
Forwarder:Air shipment or sea shipment.

More information of our products, please do feel free to contact us.
Reply will be available within 24 hours. Thanks!

Type: XCK-M110, XCK-M102, XCK-M115, XCK-M121, XCK-T121, XCK-T106, XCK-T110, XCK-T118, XCK-P121, XCK-P102, XCK-P106, XCK-P110, XCK-P118It's depends on the quantity, for example, PCS need to OEM,delivery time is 3-7 days.We now can do 1/2 years warranty, during the warranty time we can exchange all defective products from customers for free.Yes.MOQ PCS, mixed order acceptable, welcome trial order.Both EXW and FOB Ningbo are acceptable.We could start our discussion about payment term from second order on.Express:DHL, UPS, FedEx, TNT and SF express.Forwarder:Air shipment or sea shipment.More information of our products, please do feel free to contact us.Reply will be available within 24 hours. Thanks!

Hey All,

Sorry for the late reply, I didn't expect answers so soon.

Regarding the crash comments and hard limits, understood. I have hard limits in place, and the limit switch is only for positioning use. My question with stop() isn't that I want to avoid crashes (though I do) but just that my limit switch only has so much travel. I am fine with the motor overrunning by a small number of steps as long as it doesn't damage the switch by going too far. I guess the correct question to ask would be: how can I calculate the number of steps stop may overrun?

I am assuming that accelstepper uses a typical "bang-coast-bang" acceleration curve where it accelerates at the maximum value and then coasts (or stops). In that case I have no problem calculating the number of over-running steps and should be good to go. If not, it'd be great if someone could comment on how accelstepper calculates the acceleration curves of the motor.

MorganS, I am not using the run() and runto() commands, but actually the move() and moveto() commands (so move to absolute position or move relative # of steps). For the limit switch, my current plan is to tell the motor to move a huge number of steps, and when the switch is hit go into an ISR which uses stop() to stop the motor. In this case, my limit switch is not my zero position and can move, so i can't approximate the number of steps between zero and the limit switch.

TL:DR - Does accelstepper always use maximum acceleration when moving (bang-coast-bang curve)? If not, what curve does it use and how can I use it to calculate the potential number of over-run steps? I am using move() and moveto() for positioning and an ISR with stop() for soft-limits.

Thanks for all of the responses.

Nicholas

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