Datasheet

D4NL
15
Note: The above PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage conditions.
●Application Overview
• The power supply to the motor M is turned OFF immediately by the stop signal.
• The guard can be opened by turning OFF the lock signal.
• The S1 and S2 monitor the guard, and the power supply to the motor M is kept OFF while the guard is opened.
• The power supply to the motor M is turned ON again when the guard is closed and locked.
PL/safety category Model Stop category Reset
PLe/4 equivalent
Guard Lock Safety-door Switch
D4NL-@AFG-@, -@A@H-@, -@A@J-@ (Solenoid Lock Type)
Safety Relay Unit G9SA-301 (24 VAC/VDC)
0Auto
Timing Chart
Limit switch S1
S1: Safety Limit Switch
with direct opening mechanism
(D4B-N, D4N, D4F)
S2: Guard Lock Safety-door Switch
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
Guard Lock
Safety-door
Switch S2
Operation signal
Lock signal
K1 and K2
(NC)
K1 and K2
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
Guard opens
TH
SA
PLC
PLC
54
53
34
33
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
KM1
KM2
M
KM1 KM2
41
42
12
11
S2
S1
OPEN
12
11
Lock signal
Operation signal
Feedback loop
Operation
instruction
Motor controller
Note: The lock can be released at any time. Therefore, do not
use a model with a solenoid lock in applications where
the operator may be exposed to danger when the guard
opens. Use a model with a mechanical lock.