-16-
No.D-
※
S-OMI0002-B
•Cross-reference for troubleshooting
Reference
No.
Problem
Possible cause
Investigation method
Countermeasure
Malfunction due to
turbulence
magnetic field
Influence of the magnetic field of
adjacent cylinder.
Use magnetic shield between
cylinders.
1
Output stays
ON
Display stays
ON
Incorrect setting
(mounting) position
: Short stroke
Check if the condition is as
below.
Switch operation range.
> Piston stroke
Displace the switch set position
from the operation range center.
Wiring failure
(2-wire type)
Check if the switch wiring
connection is reversed (Brown /
Blue).
Correct wiring.
(Refer to "Circuit diagram" on
page
14
.)
2
Output stays
ON
Display stays
OFF
Switch failure
(3-wire type)
Replace the switch.
Not match with
load specification
(2-wire type)
Check if load specification
satisfy the formula below.
Load ON voltage
> (Switch leak current x n)
x Load resistance or load
OFF current
> (Switch leak current x n)
n: Number of switch
connected in parallel
Change to 3-wire type.
Reduce the number of switch
connected in parallel.
3
Output stays
ON
Display is
normal
Wiring failure
(3-wire type)
Check reversed connection of
the switch wiring (Black / Blue).
Correct wiring.
(Refer to "Circuit diagram" on
page
14
.)
