Posted: Sunday Jan 10th, 2010 02:01 pm |
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1st Post |
Nick Locke
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This is all Comfort 1.
I have three RLY02 boards, connected via twelve core cables to:
- SEM (17-24)
- LEM (25-32)
- SEM (33-40)
All 24 outputs are working as expected. However, I have noticed that the LEDs on the RLY02 connected to the first SEM (outputs 17-24) glow dimly all of the time. This seems to suggest that, although things are working, something is not quite right.
I have checked the connections and everything seems to be ok. Clues welcome on what kind of fault is likely to cause this behaviour.
Thanks.
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Posted: Monday Jan 11th, 2010 08:10 am |
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2nd Post |
slychiu
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Joined: | Saturday Apr 29th, 2006 |
Location: | Singapore |
Posts: | 5493 |
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This may happen if you have any load connected between the Slave Output and Common (Ground)
The Comfort/Slave Output should be connected to OP op of the RLY01 and the Output centre pin to C
This may also happen if you are using an external voltage to drive the Realy coil, which is higher than the Comfort 12V. You can try connecting a 1 K resistor between OP and C of the RLY02 for each relay
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