Installation
14
J
Connecting the contact output terminal
z
The contact capacity is lower than 250 V AC, 3 A or 30 V DC, 3 A at a resistance load.
z
The terminal screw for the contact output is M4.
z
The applicable electric wire is of 0.75 mm
2
to 5.5 mm
2
(AWG18 to AWG10).
z
If noise is detected from the load, use a varistor or a noise killer.
Q
Failure output
If a circuit is turned OFF when the power source was disconnected or when abnormality
occurred, use the CF and NCF contacts. When this equipment is normal (not in failure), the
CF-NOF contact is opened, and the CF-NCF contact is short-circuited.
When the power source is disconnected, the CF-NCF contact is opened.
Q
Cleaning output terminal
Cleaning output is an active voltage output of the same potential as the power source (not a
no-voltage contact).
Empty terminals are connected in the inside. Do not connect anything.
As illustrated below, connect the contact output and the cleaning output.
When normal
Abnormal
condition
(FAIL occurrence)
Power-off
CF-NOF
Opened
Closed
Closed
CF-NCF
Closed
Opened
Opened
WARNING
To connect any load exceeding the contact capacity or any induction load (e.g., a motor or a pump),
be sure to use a power relay exceeding the load rating.
CAUTION
When the power source of this instrument is OFF, the C-NC contacts R1 and R2 are short-circuited.
Therefore, be careful about the connection of load.
NOF
CF
NC
F
FAIL (error warning output)
NC
1
C1
NO1
NC
2
C2
NO2
R1 (control output) R2 (control output)
*
* Not used in this instrument. (Do not use.)
Cleaning output AC output (the same
as connected power source)
L
N
90 V to 240 V AC
50 Hz/60 Hz
