12

Guard Lock Safety-door Switch

D4GL

Application Examples

■ G9SA-321-T@ (24 VAC/VDC) + D4GL-@@@A-@ (Mechanical Lock Type)

+ D4D-

@520N Circuit Diagram

OPEN

S4

KM1

KM2

Lock release signal

S2

Operation

instruction

Motor controller

Off delay

timer

Control

circuit

Timing Chart

Motor rotation

OFF-delay time

S1:

Safety Limit Switch

with direct opening mechanism

(D4D)

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

Stop signal

11

12

41

42

Feedback loop

Guard Lock

Safety-door

Switch S2

TH

SA