Filter
Top Products
A-72 Guard Lock Safety-door Switch D4BL
D4BL
Safety Door
Switches
■ Connection Example with OMRON’s G9SA Safety Relay Unit
G9SA-321-T@ (24 VAC/VDC) + D4BL-@A-@, @B-@ (Mechanical Lock Type) Circuit Diagram
(Manual Reset)
Timing Chart
Motor rotation
OFF-delay time
S1: Safety Limit Switch
with direct opening mechanism
(D4B-N, D4N, D4F)
S2: Guard Lock Safety-door Switch
S3: Reset switch
S4: Lock release switch
KM1 and KM2: Magnetic Contactor
M: 3-phase motor
Limit switch S1
Reset switch
S3
K1 and K2
(NC)
K1 and K2
(NO)
K3 and K4
(NC)
K3 and K4
(NO)
KM1 and KM2
(NC)
KM1 and KM2
(NO)
Operation
instruction
Lock release
signal
Lock release
switch S4
Stop signal
Guard opens
Guard can be opened
Guard Lock
Safety-door
Switch S2
TH
SA
S2
OPEN
S4
KM1
KM2
31
32
11
12
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
AB
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
Operation
instruction
Feedback loop
Stop signal
Guard
Lock release signal
KM1
KM2
S3
Motor controller
S1
Note: This example circuit is for Category 3.