Datasheet
D4SL-N / D4SL-NSK10-LK@
21
Application Example
D4SL-N Application Example
Application Overview
• If the guard is opened, it is detected with S2 and the power supply to the motor (M) is shut OFF.
•
When the guard is closed, the lock status can be detected and the power supply to the motor (M) remains shut OFF until limit switch S3 is pressed.
PL/Safety Category Applied models Stop category Reset method
Equivalent to PLe/4
D4SL-N@R@A-@ Compact
Safety Door Switch with Magnetic Lock (mechanical lock)
G9SA-301 (24 VAC/DC)
Safety Relay Unit
0 Manual
Feedback loop
Stop signal
Guard
Lock release signal
TH
SA
A1 A2
T11 T12
K1
K1
PE
T21 T23 T22
K2
K2
6
a
b
1
2
3
4
5
6
JP
13
T32T31
23 33 41
2
5
3
1
K1
K2
4
a
b
Control
Circuit
14 24 34 42
AB
KM1
KM2
M
KM1 KM2
9
1 2 3 4 5 6 7 8
10
S2
OPEN
S4
KM1
KM2
42
41
12
11
S1
KM1
KM2
S3
to PLC
to PLC
K1 and K2 (NC)
K1 and K2 (NO)
KM1 and KM2 (NC)
KM1 and KM2 (NO)
Guard can be opened
Reset switch S3
Stop signal
Lock release signal
S4
Limit switch S1
Guard Lock
Safety-door Switch
S2
Guard opens
Note: 1. The above circuit diagram is for Category 3.
2. Numbers inside the boxes are terminal numbers printed on the
product.
S1: Safety Limit Switch with direct opening mechanism
(D4B-N, D4N or D4F)
S2: D4SL-N
S3: Reset switch
S4: Lock release switch
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
Timing Chart