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Holding Key Type (sold separately)
• Use the A4EG-OP3 Holding Key when using the A4EG combining
with the door switch.
• Use the D4NS Safety-door Switch.
• Loose screws may result in malfunction. Tighten the screws at the
specified torques. Adhesive is recommended to prevent screws
from being loose.
The specified torque: 0.5 to 0.7 N·m (Mounting screw, 2pcs.)
• Do not impose excessive force on the tip of the Holding Key or do
not drop the switch body when the Holding Key is mounted on the
switch body. Otherwise the Holding Key may deform or break. Stop
using in case that deformation or breakage of the Holding Key
occurs.
• Use the provide Spring washers and Mounting screws when
mounting the Holding Key. Fit a tip of a slotted-screw driver on the
head of the Mounting screw as shown in the following figure when
tightening Mounting screws. The Mounting screws cannot be
released once tightened.
Holding Key
A4EG-OP3 (sold separately)
A4EG
Spring washer, 2 pcs.
(provided)
• As shown in figure 1 in Precautions for Safe Use, install the D4NS
so that its mounting surface is above the highest part of the A4EG.
• As shown in figure 1 in the Precautions for Safe Use, use the
Holding Key inserted vertically to the insert hole.
Using the A4EG-BE2R041 (Enabling Grip Switch
Equipped with an Emergency Stop Button)
If the A4EG is installed in a machine, do not use the A4EG alone as
an emergency stop switch or as an emergency shutoff switch as
specified by SEMI-S2.
SEMI-S2 specifies the installation of emergency shutoff switches at
specified intervals on equipment. The A4EG can be removed from the
equipment, and so may not satisfy the requirements of SEMI. Use the
A4EG in combination with emergency stop switches or emergency
shutoff switches that are installed at fixed positions.
Wiring
• Confirm that safety is satisfied on the operation of the equipment
to wire.
• Do not put the electric power when wiring. Otherwise electric shock
may occur.
• Use an adequate diameter of cable. The seal performance is
reduced when the diameter is smaller than the adequate diameter.
• Use the conforming sizes of lead wires to the apply voltage and
current.
Conforming cable size
Recommended multi-wire cable size: AWG20 to 18
Recommended cable diameter:
• Do not pull the lead wires with excessive force. Doing so may
disconnect them.
Mounting screw, 2 pcs.
(provided)
2
(0.5 to 0.75 mm
)
8.0 to 13 mm
(used with provided Conduit
Connector)
• Do not pull the cable when the Enabling
Switch Device is hung on the Bracket.
• Use crimp terminals with insulator tube for wiring.
Recommended crimp terminal (Ring tongue terminal, Nylon-
insulated): J.S.T. Mfg Co. FN1.25-3.7 (F Type)/
N1.25-3.7 (Straight Type)
t: 0.8 mm
dz dia.: 3.7 mm
D dia.4.0 mm
B: 5.5 mm
L: 15.7 mm
F: 4.0 mm
D dia.
I: 9.0 mm
• Cut and crimp the lead wires in length as shown in the following
table.
Otherwise, excess length may cause the cover to rise and not fit
properly.
Lead Wire Lengths
L1
L2
Length of lead wires
Terminal No.
L1/L2
(Length to the centers of crimp terminals)
• Do not let particles such as small piece of lead wire in the switch
body when wiring.
Terminal No. and Circuit Configuration
Model
Enable output
A4EG-C000041
Grip output
Enable output
A4EG-BE2R041
Emergency Stop
Pushbutton Switch output
Enable output
A4EG-BM2B041
Pushbutton Switch output
• Assemble all of the parts without leaving any parts as shown in the
following figure when mounting Conduit Connector.
Mount Rubber packing, Conduit part, Cable Seal part and Spiral
Nut part in order.
• Both of the switches is ON when pushing the two push buttons
simultaneously. Confirm that safety is satisfied on the operation of
the equipment to wire. (A4EG-BM2B041)
• Perform maintenance inspections periodically.
A4EG
Bracket
A4EG-OP2
(sold separately)
L
l
F
B
dz dia.
Terminal Arrangement
Terminal 2
Terminal 3
Terminal 1
Terminal 4
Terminal 5 Terminal 6 Terminal 7 Terminal 8
1-4
5-8
40±2 mm
25±2 mm
Circuit
Terminal No.
1-2, 3-4
5-6
1-2, 3-4
5-6, 7-8
1-2, 3-4
5-6, 7-8
Rubber packing
Cable seal part
Spiral nut part
Conduit part
13
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