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Guard Lock Safety-door Switch
D4JL
S
a
fe
ty D
o
o
r
Sw
it
c
h
e
s
P
recau
ti
on
s f
o
r
All Sa
fe
ty
Do
o
r
Switch
e
s
D4
NS
D4
GS-
N
D
4
BS
D4
G
L
D4
JL
D
4
NL
D4
BL
D4
NH
D
4
0
B
D4
NS-
SK0
1
D4
NS-
SK3
0
D4
J
L
-SK3
0
66
Application Examples
G9SA-321-T
@
(24 VAC/VDC) + D4JL-
@@@
A-
@@
(Mechanical Lock Models) Manual Reset
TH
SA
51
52
21
22
S2
OPEN
S5
41
42
11
12
S1
Stop signal
Door
51
52
21
22
S2
OPEN
S4
41
42
11
12
S1
KM2
KM1
Door
Lock
release
signal
A1 A2 T11
T12
T31
T32
13 23 33 43 53 61
1
2
3
4
5
6
JP
K3
3
4
2
5
K4
K1
K2
K1
K1
PE T21
T23
T22
A
B
14 24 34
KM1 KM2
KM1
KM2
M
44 54 62
K2
K2
6
K3
1
a
b
OffDelay
Timer
Control
Circuit
K4
a
b
Operation
instruction
Feedback loop
KM1
KM2
S3
Motor controller
S1:
Safety-door Switch with direct opening contact
S2:
Guard Lock Safety-door Switch
S3: Reset
switch
S4 and S5:
Lock release switches
KM1 and KM2: Magnetic contactors
M: 3-phase
motor
Application Example
Stopping a Robot on a Conveyor Line
D4NH
Safety-door Hinge Switches
D4JL
Guard Lock Safety-door Switches
Note: 1. This circuit conforms to EN954-1 Safety Category 3.
2. When the release button is pressed on rear release models, the solenoid contacts are
turned OFF.
3. With Trapped Key Models, the door will not lock when it is closed with the trapped key
removed.