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Connected with
normal-open side of
electromagnetic valve
(For detection of abnormal bellows condition)
(For time-up function)
Alarm output 1
Alarm output 2
Power source AC100V
: Electric wiring
: Air piping
AC-1 controller
Black
White
Red
Black
White
Red
(air supply source)
Compressor
V Valve
FR Reducing
valve with filter
SV Electromagnetic valve
Connected with
normal-closed side of
electromagnetic valve
Electrode
Proximity
switch A
Proximity
switch B
Black wire of electrode
White wire of electrode
w
e
r
t
y
u
i
!5
!6
!1!2
!3!4
@0
@2
q
[1] Wiring for proximity switch
Caution
The proximity switches of the FS series pump have three wires: black, white, and red. Improper wiring may
cause the proximity switch to burn. Carry out the wiring carefully and accurately.
Connect the wires (black, white, and red) of proximity switch A with terminals no.
y
,
u
, and
i
, respectively,
of the controller.
Connect the wires (black, white, and red) of proximity switch B with terminals no.
e
,
r
, and
t
, respectively,
of the controller.
*
Symbols A and B are arbitrary. A and B may be interchanged.
Warning
A standard proximity switch cannot be used when a flammable liquid such as a solvent is used. An explosion-proof
proximity switch must be used in the case of a flammable liquid.
[2] Wiring for electrode
Connect the tow wires (white and black, approximately 1.8m), which extend from both the right and left sides of the
pump, with terminals no.
!5
and
!6
of the controller.
Join the right and left white wires and connect it with terminal no.
!6
.
Join the right and left black wires and connect it with terminal no.
!5
.
*
Never connect the white and black wires. This will result in electrical conduction between the tow lines.
*
The terminal numbers to be connected with the wires may be interchanged.
Warning
The use of an electrode is prohibited when a flammable liquid such as solvent is pumped. Sparking of the electrode
in a solvent application may cause a fire. Pumping of flammable liquid must employ explosion-proof specifications
which may be obtained through consultation with Iwaki or your dealer.
2.4 Wiring with controller
A 5-port electromagnetic valve and controller of AC-1, FD type, SC type or FDC-1 type are required for the operation
of this pump. For wiring, refer to the instruction manual of each controller.
2.4.1 Wiring with AC-1 controller
