KLF-M537F-A0 YSM10 YSM20R SMT machine suction switch relay G9SA-321-T075

KLF-M537F-A0 YSM10 YSM20R SMT machine suction switch relay G9SA-321-T075

KLF‑M537F‑A0 YSM10/YSM20R SMT Pickup Switch Relay (Omron G9SA‑321‑T075)

Overview

The KLF‑M537F‑A0 is the designated safety relay unit used in Yamaha SMT machines (models YSM10, YSM20R) as part of the vacuum (pickup) switch control circuit. Its job is to provide a reliable and safety-certified OFF‑delay function in response to vacuum detection or emergency stop inputs.

The core relay module is the Omron G9SA‑321‑T075, a compact, DIN‑rail mountable safety relay with a 7.5‑second OFF‑delay timer, compatible with both 24 VAC/DC and 100–240 VAC power supplies.

Key Features

Model: Omron G9SA‑321‑T075
Power Supply: 24 VAC/DC or 100–240 VAC ([assets.omron.eu][1])
Contact Configuration:

3 safety (NO) outputs for primary control
Dual OFF‑delay contacts (DPST‑NO) with a maximum 7.5 s delay ([assets.omron.eu][1])
1 auxiliary NC contact
Timer Range: 0.5 s to 7.5 s, factory-set to 7.5 s ([Cloudinary][2])
Ratings:

Up to 5 A switching capacity (250 VAC / 30 VDC)
Fast response time (10 ms) and low contact resistance (≤100 mΩ) ([Mouser Electronics][3])
Certifications: EN/BG compliant, UL/CSA approved
Design:

DIN‑rail or screw mountable
Compact 45 mm width
Vibration‑ and shock‑resistant rated for industrial use ([Cloudinary][2])

Typical Applications

Implements a safe OFF‑delay for the vacuum pickup switch on SMT machines:

Ensures vacuum motor remains on for a brief delay after vacuum loss or emergency stop, enabling safe nozzle return.
Monitors safety circuit inputs (e.g., sensors, limit switches) before cutting power to actuators.
Acts as a safety relay in the YSM10/YSM20R vacuum control system with controlled delay.

Operation Concept

When vacuum or error signal deactivates, the OFF‑delay timer holds power for up to 7.5 s, allowing controlled shutdown.
Contacts open only after either the delay expires or via emergency/manual reset depending on the input configuration.

Benefits

Enhances machine safety by preventing abrupt shutdowns of vacuum components
Compact, factory-configured timer avoids external wiring
Complies with industrial safety standards and relieves design burden

Conclusion

Used in the KLF‑M537F‑A0 control assembly for Yamaha YSM10/YSM20R SMT machines, the Omron G9SA‑321‑T075 safety relay ensures controlled and safe operation of the vacuum pickup system by providing reliable OFF‑delay functionality and meeting industrial safety requirements.

Related Accessories for KLF-M537F-A0 / G9SA-321-T075 Relay

Notes:

All wiring and control logic should follow Yamaha's YSM10/YSM20R circuit design and Omron's relay wiring standards.
It’s recommended to use genuine parts for full compatibility and safety certification.
Relay module should only be replaced or serviced by trained personnel.

Related Part Numbers – KLF-M537F-A0 / G9SA-321-T075 Relay Assembly

Notes:

Always verify compatibility with your specific YSM10 or YSM20R machine model.
Use genuine Yamaha and Omron parts to ensure proper safety performance and certification compliance.
For exact BOM matching or electrical cabinet layout, part numbers may vary slightly based on configuration.

FAQ Guide — KLF-M537F-A0 (with Omron G9SA-321-T075)

Function: Vacuum control & emergency OFF-delay safety relay

1. What is the KLF-M537F-A0 used for?

It is a safety relay module integrated into Yamaha YSM10 and YSM20R pick-and-place machines. It controls vacuum pickup systems with an OFF-delay function and supports emergency stop logic using the Omron G9SA-321-T075 relay.

2. What does the G9SA-321-T075 relay do?

It’s a 3-pole safety relay with a 7.5-second OFF-delay. After receiving a stop signal (e.g., vacuum loss or emergency stop), it holds power briefly to allow safe machine reaction—like retracting the nozzle before vacuum shuts off.

3. Is this module safety-certified?

Yes. The G9SA relay is EN ISO 13849-1 (PLe) and IEC/EN 60204-1 compliant. It is also UL/CSA recognized, making it suitable for industrial safety applications.

4. What power supply does it require?

It supports either 24 VDC, 24 VAC, or 100–240 VAC, depending on wiring configuration. Always verify your machine’s supply before replacement.

5. Can I adjust the timer on the relay?

No. The G9SA-321-T075 is a factory-fixed 7.5-second delay model. Other G9SA variants offer adjustable timing, but this unit is fixed per Yamaha’s design specification.

6. What happens if the relay fails?

If the relay contacts wear out or the delay timer malfunctions, vacuum control may behave unpredictably, or safety functions may not engage properly. Immediate replacement is recommended using genuine parts.

7. How do I replace the relay?

Power off the SMT machine and isolate the control cabinet.
Remove the DIN rail-mounted relay (with base socket, if applicable).
Insert the new G9SA-321-T075 into the socket and confirm tight terminal connections.
Restart the machine and verify vacuum control function.

8. Where can I get a replacement?

From Yamaha SMT parts distributors or Omron-certified suppliers. Ensure part number G9SA-321-T075 matches exactly.

9. Is this relay interchangeable with other models?

No. Only use G9SA-321-T075 or exact Yamaha-approved alternatives. Using different delay times or contact configurations may compromise machine safety logic.

Physical warehouse,
fast delivery
after-sales support
providing door-to-door transportation services
price advantages,
offering a full range of SMT dip equipment and accessories

We can do for you:
1. We provide fulL SMT solution for you
2. We provide core technology with our equipments
3. We provide the most professional tech service
4. We have wealthy experience on SMT factory setup
5. We can solve any question about SMT

Contact:
CNSMT Electronics Equipment Co,.LTD
Email: info@smtlinemachine.com
www.smtlinemachine.com
Mb/whatsapp/wechat:+8613537875415
SKYPE:smtdwx

CNSMT  was established in June 2005

with a registered capital of 6 million yuan and more than 60 employees.

The company's core personnel of the professional R&D team have 15 years of automated R&D and manufacturing experience.
CNSMT mainly develops and sells SMT pick and place machines, printing presses, reflow welding, wave solder machine, loader and unloader, conveyor, AOI, SPI, and peripheral auxiliary equipment.

The company has developed and mass-produced refow oven and wave welding machine at the end of 2010. The machine is the first in the country.

The sales volume of products reached more than 200 units in half a year.
Our philosophy: integrity, strength first, wholeheartedly for the customer.

Our company adhering to the customer first, service-oriented business philosophy,

benign competition, will continue to work hard to learn, so that more customers to use the quality and cheap SMT china high-end equipment, for customers to save labor costs, factory costs.