Troubleshooting Procedures - Philips LRC2410 Installation Instructions Manual

SYMPTOM: OUTPUTS (RELAYS) DO NOT SWITCH ON OR OFF
Check the following:
1. Verify the 5 volt and 20 volt GREEN (STATUS) LEDs on the power supply card are on. (See Figure 7 for LED
locations). If both LEDs are on, proceed to STEP 2. If either LED is not on, verify the correct voltage is present on
the INPUT POWER TERMINAL BLOCK. Verify the wires connecting the input transformers to the CONTROLLER
CARD (purple wires) are connected properly. (See Figure 7) If these conditions are correct and either or both
LEDs are still not on, contact Technical Support for more information.
2. Verify the correct voltage is present on the LINE side of the RELAY TERMINAL BLOCK. If the correct voltage is
present and the outputs still don't function correctly, proceed to STEP 3.
3. Verify both the UPPER and LOWER RELAY CARD RIBBON CABLES are properly connected to the POWER
SUPPLY and RELAY CARD SOCKETS. (See Figure 7) If both are properly connected and the outputs still don't
function correctly, proceed to STEP 4.
4. Switch the MANUAL OVERRIDE SWITCH on the POWER SUPPLY CARD to the "ON" position. (See Figure 7 for
switch location) All loads which are programmed as NORMALLY OPEN (default) and the corresponding RELAY
OUTPUT STATUS LEDs should turn on.
5. Switch the MANUAL OVERRIDE SWITCH on the POWER SUPPLY CARD to "AUTO". Use the RELAY BUTTON(S)
on the front panel to switch individual relays ON/OFF. Observe the RELAY OUTPUT STATUS LEDs on the POWER
SUPPLY CARD. The LEDs for all relays which are NOT programmed as DISABLED should indicate ON/OFF as the
RELAY BUTTON(S) are being pressed. Also, an audible clicking should be heard as the relays switch.
If after performing the above tests the panel still does not function correctly, contact Technical Support.
SYMPTOM: THE INPUT BUTTON(S) ARE OPERATING THE WRONG RELAY(S)
1. Check Programming. The RELAY BUTTON LED for each relay controlled by an INPUT BUTTON will light when
switched on by the input. If a programming error is suspected, consult the LRC2410 Operation and Maintenance
Manual for detailed programming information.

Troubleshooting Procedures

LRC2410 Installation Instructions, Part No. CDCS000314 Rev. A 7/11
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