Troubleshooting - Omron F3S-B122P-L Instruction Manual

F3S-B

TROUBLESHOOTING

The F3S-B runs internal self-tests after the power is turned ON and while the F3S-B is in normal opera-
tion. The external test is also available. If a failure is detected, a corresponding flicker pattern is indicated
by the red LED (OFF-state indicator) of the receiver. Each failure indication sequence, other than continu-
ous flashing, will repeat after a two-second interval. This repetition will continue until a remedy is effected.
Indication
Relay monitoring failure during
Flashing
continuously ON-state
(In the case that the Relay moni-
toring function is activated, the
wrong status of the relay NC con-
tact is detected when the control
outputs are in the ON-state.)
Flashing Internal parameter failure of a
once receiver
Flashing Communication failure between
twice an emitter and receiver,
or internal failure of an emitter
Internal memory failure of a
Flashing
three times receiver
Flashing Relay monitoring failure during
four times OFF-state
(In case that Relay monitoring
function is activated, wrong status
of the relay NC contact is detected
when the control outputs are OFF-
state.)
Control output failure
Flashing
five times (High level voltage is detected
although a control output is in
OFF-state.)
Flashing Internal hardware failure of a
six times receiver
Flashing Series connection system fail-
seven times ure of receivers
0.5 sec
N times flashing
Fig. Timing Chart for flashing pattern of red LED (OFF-state indicator)
36
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Cause
− Check connection of the relay monitoring input.
− Check the voltage of the relay monitoring input.
(When control outputs are ON-state, the relay moni-
toring input must show 0 V )
* Regarding only this failure, the interruption and
restoration of power is necessary to restore F3S-B.
− Change the setting parameters by the optional soft-
− Replace the receiver.
− Check connection of the emitter and the receiver.
− Check series connection of the emitters.
− Check if the emitter and the receiver have the same
− Check if the type name of the slave unit emitter is
− Replace the emitter.
− Replace the receiver.
− Check connection of relay monitoring input.
− Check the voltage of the relay monitoring input.
(When control outputs are OFF, the relay monitoring
input must be at a level of 17 VDC to Vs.)
− Check connection of control outputs for a short cir-
− Replace the receiver.
− Replace the receiver.
− Check series connection between the receivers.
− Check if the type name of the slave unit receiver is
− Replace the master unit receiver and /or the slave
2 sec
0.5 sec
Remedy
ware F39-U1E, or reset the setting parameters to
factory setting status also by F39-U1E.
type name.
same as the indicated one on the label of the mas-
ter unit emitter
cuit with Vs (cables, connected devices)
same as the indicated one on the label of the mas-
ter unit receiver
unit receiver.
Section 8