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12.5kHz Relay Card 24VDC with DIN Rail Mount

12.5kHz Relay Card 24VDC with DIN Rail Mount

The KTD-253 Relay Card is designed to sense a 12.5kHz Charge Pump or Heartbeat signal from a CNC controller and activate the relay when the signal is present. Mach 3 and other CNC controllers can provide this signal as a safety feature. Should the controller fail or the computer hang, crash or lose power, the signal disappears. The KTD-253 is designed as a safety system to shut down CNC equipment in the event of controller failure, but also has other uses like preventing erratic movement as Windows starts up and polls the parallel port.

The card is equipped with a 5A (resistive) relay. A larger relay can be wired to the card’s COIL connections. The 253 is available as a PCB in 12 V and 24 V versions, and DIN-rail mountable in 12 V and 24 V versions.

Features:

  • Senses 12.5kHz "Charge Pump" or "Heartbeat" from CNC control systems for safety shut-off if the controller fails
  • Microcontroller-based for high reliability
  • 3.3V and 5V input signal compatible
  • On-board 5A SPDT relay
  • Auxiliary coil output for larger relay
  • 12V and 24V versions
  • DIN rail mount option
  • 72mm X 42mm

Documents:

Download datasheet

Support:

SKU: KTD-253

2 available

Qty. Price
(AUD ex. GST)
1 to 4 $48.50
5 to 9 $43.65 (10% off)
10+ $41.23 (15% off)

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