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3.2 Connections
Please perform connection after referring to the following wiring diagram.
● Connection drawing (
(1) 1φ2W，Analog output.
AUX.SUPPLY
EXT.INPUT
(3) 3φ3W, Analog output
AUX.SUPPLY
EXT.INPUT
● Caution on connection
(1) Mount the terminal cover without fail for safety after the end of connections.
(2) Separate the input wiring and output wiring from each other without fail, and take a preventive measure
against malfunction due to external noises.
(3) Connect the grounding terminal E (No. 7 terminal) to the ground without fail for enhancing the shield effect.
Keep the grounding resistance between the grounding terminal and the ground to be lower than 100Ω.
(4) Keep a distance of more than 30cm between this unit and the circuit breaker as well as between this unit
and the relay contact signal line.
(5) No protection is necessary for this unit even if the transmission line may be affected by an induced lightning
surge or the like when transmitting an analog output to the receiver. Mount an about 500V arrester or
the like between the line surge protector and the ground as well as between the transmission line and
the ground on the receiver side for the purpose of protecting the devices on the receiver side.
(6) It is recommended to mount a surge killer outside when connecting an inductive load to the pulse output
and alarm output. If no surge killer is mounted, the contact life may shorten.
10
)
ANALOG OUTPUT 1
ANALOG OUTPUT 2
ANALOG OUTPUT 3
PULSE OUTPUT
ALARM OUTPUT
ANALOG OUTPUT 1
ANALOG OUTPUT 2
ANALOG OUTPUT 3
PULSE OUTPUT
ALARM OUTPUT
(2) 1φ3W, Analog output.
AUX.SUPPLY
EXT.INPUT
８
Note(
) Analog output, pulse output, alarm
output, external operation input is an
option.
９
Note(
) By setting, it can switch an external
operation input.
Alarm reset. Maximum, minimum value
reset. Alarm and maximum, minimum value
all reset.
10
Note(
) In case of low-voltage circuit, secondary
side earthing of VT and CT is unnecessary.
And, VT is unnecessary in case it used
110V or direct 220V.
11
SFLC-211-185
ANALOG OUTPUT 1
ANALOG OUTPUT 2
ANALOG OUTPUT 3
PULSE OUTPUT
ALARM OUTPUT
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