Installation
16
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-NOF contact is short-circuited.
J
Connecting the transmission output terminals
z
The terminal screws for transmission output is of M3.5.
z
The applicable electric wire is 2 mm
2
(AWG 14) max.
z
For the transmission output cable, use a shielded cable.
z
If lighting might strike, install an arrester on the output side of the converter and on the
side of receiving instruments.
NC1 C1 NO1 NC2 C2 NO2
Contact output
NOF CF
NCF
FAIL 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.
Note
When the power source of the converter is OFF, the C-NC contact for R1 and 2 is short-circuited.
Therefore, be careful about the connection of load.
