13
OMRON SCIENTIFIC TECHNOLOGIES INC.
Fremont CA USA
Tel: 1/888/510-4357 in USA and Canada
© OSTI 1209 PN99584-0050 Rev. E
Original Instructions
48
Table 12-5 Controller Faults
Code Displayed System Status Corrective Action
50 Internal controller fault. 1. Return controller to STI for repair.
51 Receiver fault. 1. Check receiver to controller wiring
connection
s. Correct errors.
2. Check receiver cable for cuts, and
proper connectio
n to quick-disconnect
fitting. Replace or properly connect cable
as required.
3. If none of the above, return receiver to
STI for
repair.
52 Transmitter fault. 1. Check transmitter to controller wiring
connection
s. Correct errors.
2. Check transmitter cable for cuts, and
proper connectio
n to quick-disconnect
fitting. Replace or properly connect cable
as required.
3. If none of the above, return transmitter
to STI fo
r repair.
53 Transmitter and receiver length
mismatch or transmit
ter and
receiver not connected.
1. Check to determine that transmitter
and receiver are identical in protected
height.
2. Check to determine that transmitter
and receiver are properly conn
ected to
controller and that their cables are not
damaged.
59 24 VDC power supply fault. 1. Check voltage supplied to unit. Correct
so that it is
24 VDC ± 20%.
70 Grounding/Shielding Fault 1. Check the controller is properly
grounded.
2. Chec
k to see that the transmitter and
receiver shield
is connected properly.
3. Check for cross-talk from other I.R.
light source.
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LEANING
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Accumulation of oil, dirt and grease on the front filter of the 4700 transmitter and receiver can effect
the system operation. Clean filters with a mild detergent or glass cleaner. Use a clean, soft, lint-free
cloth. Painted 4700 surfaces may be cleaned with a mild de-greasing cleaner or detergent.
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