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2.2 Connections
■ Connection diagram
2 contacts
Each change over contact (1c)
UNITn
INPUT
＋ －
1
2
5
6
7
COM1
a1
b1
COM2
AL1
ALARM OUTPUT
4 contacts
Each normally open contact (1a)
UNITn
UNITn＋1
INPUT
＋
－
1
2
5
6
7
COM1
AL2
COM2
AL1
ALARM OUTPUT
<Caution>
Please shut off the auxiliary power supply and input before starting work.
Touching terminals etc. while wet hands may cause electric shock.
Because burnout accident may be caused by wiring differences, please be careful of wiring.
Also, it is dangerous to inspect it in places with inflammables and flammable chemicals and gases.
When inductive loads (electromagnetic relay, etc.) are connected to output contact, it recommends
attaching diode or surge killer etc. near the load.
《Spark elimination circuit example》
Output
contact
3 contacts
Each normally open contact (1a)
UNITn＋1
UNITn
INPUT
＋
1
5
6
7
5
a2
b2
AL1
AL2
4 contacts
Each normally close contact (1b)
UNITn
INPUT
＋
1
5
6
7
5
AL4
COM1
AL3
AL1
Diode
Inductive
Ｒ
load
UNITn＋1
－
2
6
7
8
5
6
AL2
AL3
ALARM OUTPUT
UNITn＋1
－
2
6
7
5
6
7
AL2
COM2
AL4
AL3
ALARM OUTPUT
Surge killer
Output
R
contact
C
～
External power supply
5
3 contacts
Each normally close contact (1b)
UNITn
UNITn＋1
INPUT
＋
－
1
2
5
6
7
8
5
6
AL1
AL2
AL3
ALARM OUTPUT
Connect 1(＋) and 2(－) of the left
unit to INPUT of this product.
＊ When mounting this product on a
multiple base (FWBA-08□ or
FWBA-16□), the space for 2 units
is used.
Inductive
Ｒ
load
FSDLC-220-047
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