D4JL/D4JL-SK40
22
Application Examples
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.
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Application Overview
•
The stop signal is sent to the motor controller.
•
The power supply to the motor M is turned OFF after OFF-delay time.
•
The lock release signal enables the guard 1 and guard 2 to be opened.
•
The S1 and S2 monitor the guard 1, and the S3 and S4 monitor the guard 2. The power supply to the motor M is kept OFF while one of the guards is opened.
•
The power supply to the motor M is turned ON again when the reset switch S5 is pressed while both guards are closed and locked.
PL/safety category
Model
Stop category
Reset
PLd/3 equivalent
Guard Lock Safety-door Switch D4JL-
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A-
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(Mechanical Lock Type)
Safety Relay Unit G9SA-321-T
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(24 VAC/VDC)
1
Manual
TH
SA
51
52
21
22
S4
OPEN
S7
41
42
11
12
S3
Stop signal
Guard 2
51
52
21
22
S2
OPEN
S6
41
42
11
12
S1
KM2
KM1
Guard 1
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
Off Delay
Timer
Control
Circuit
K4
a
b
Stop
instruction
Feedback loop
KM1
KM2
S5
Motor controller
S1:
Safety-door Switch with direct opening contact
S2:
Guard Lock Safety-door Switch
S3:
Safety-door Switch with direct opening contact
S4:
Guard Lock Safety-door Switch
S5: Reset
switch
S6 and S7:
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.
When the release button is pressed on rear release models, the solenoid contacts are turned OFF.
2.
With Trapped Key Models, the door will not lock when it is closed with the trapped key removed.
