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G9SX-LM

Safety controllers

75

5

Safe

ty contr

o

llers

Application example

Safe limited speed

Guard

open

42

41

12

11

11

S1

+24V

12

E1

E2

Motor  Controller

OFF

AND

rotator (M1 interlocking with M1)

Lamp

NC

NC

KM2

KM1

KM1

KM2

M1

G9SX-LM224-F10

Control circuit

blue

brown

brown

black

black

+24V

+24V

A2

S14

D22

D21

D12

D11

X4

X3

X2

X1

S24

KM1

GND

KM2

ES1 ES2

L1

A1

T11

T42

T41

T33

T32

T62

T61

M2

M1

T31

Y2

T72

T71

T12 T21 T22

Y1

S7
Selector 
switch

S6
Enable
switch

S3
Stop
signal

S4
Reset
switch

Feedback loop

S2
Guard Safety-door
switch

S5
Lock release
switch

This example is corresponding to category 3 (EN954-1)

Normal Operating mode (M1:ON, M2:OFF) Timing chart

Maintenance mode (M1:OFF, M2:ON) Timing chart

Safety limit switch  S1

Safety limit switch  S1

Able to open the guard

High speed state

High speed state

Low speed state

Low speed state

Guard close

open

Guard open

close

Enable switch S6

Enable switch S6

Reset switch S4

Reset switch S4

KM1,KM2 N.C. contact

KM1,KM2 N.O. contact

(Signal for motor)

KM1,KM2 N.C. contact

KM1,KM2 N.O. contact

Lock release switch S5

Motor rotation

Motor rotation

Guard lock Safety-door  
switch S2

Guard lock Safety-door  
switch S2

Lock release signal 
(Safety speed detection) ES1

Lock release signal 
(Safety speed detection) ES1

Inverter operation 
(signal for motor)

Devices

S1 
S2
S3
S4
S5
S6

M1

KM1, KM2

:

Safety limit switch

:Guard lock Safety-door switch
:Stop signal
:Reset switch
:Lock release switch
:Enable switch

S7

:Selector switch

:3-phase motor

:Contactor

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