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(07/05/08 10:48)
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'Mitsui Seiki HR5B'

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Mitsui Seiki HR5B
Tags: electronic_relay, jdr_052, k105, solid_state_relay, mitsui_seiki_hr5b, fanuc6m_b, obso

Henry (220.245.178.139) -

Our Mitsui Seiki HR5B with Fanuc 6M-B had several failures mostly caused by intermittent electronic relays (JDR-052/ K105) Unable to source a suitable replacement(no longer available) we have successfully made our own. We're using a PVG612 optocoupler (from International Rectifier), a 1.2K 1/2W resistor in series with the anode of the LED, some PCB "breadboard" with solderpads, 2xPCB headers modified to match the pin layout of the JDR-052 device.
The mod works very well, first implemented in 2005, and we're gradually replacing all JDR-052 device.
How do you know which JDR-052 is faulty? Consult the circuit diagram & then just tap the suspect module.
If you need more info or a diagram, go to our website and fill-in the contact form. Henry.
www.milspec-mfg.com.au

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