11
IM 77C01E31-01EN
SFLC-212-181
11
3.2
Connections
Please perform connection after referring to the following wiring diagram.
●
Connection drawing (
6
)
(1) 1
φ
2W
(2) 1
φ
3W
5
7
B+
TERM
PULSE+
PULSE-
ALM+
ALM-
A-
DI+
DI-
L+
N-
PE
SG
SHIELD
B+
TERM
A-
L+
N-
PULSE+
PULSE-
ALM+
ALM-
DI+
DI-
PE
7
5
SG
SHIELD
(3) 3
φ
3W
B+
TERM
A-
L+
N-
DI+
DI-
PULSE+
PULSE-
ALM+
ALM-
PE
5
7
SG
SHIELD
● Ca
ution 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 PE (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 100
Ω
.
(4) Keep a distance of more t
han 30cm between this unit and the circuit breaker as well as between this unit
and the relay
contact signal line.
(5) Please use a transmission line into a twisted-pair cable with a shield. And, please use as the same thing including the
inside of a board. And, in case there are many induction noises, please earth in the most effective place (one point).
(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.
Note(
5
) By setting, it can switch an external operation
input.
Alarm reset. Maximum, minimum value reset.
Alarm and maximum, minimum value all reset.
Note(
6
) 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.
Note(
7
) A terminating resistor is connected to inside in
short-circuiting No.17 (-) and No.19 (Ter.).
(Please use only the product used as a
termination on a topology.)
Содержание PR720
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