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The coil of relay 1 is excited when the emergency stop button

is pressed when the key switch is ON (previous section A),

and the relay switch turns to the lower position.

Since the excitation voltage to relay 2 collapses, the relay

switch is returned to the upper position. The power supply

circuit of the motor is formed, rotates, turns to the stop

position, and the engine stops.

The motor switch is switched to upper position, and it stops.

4 - 7

Emergency stop button ON

Component Key (Pages 4-6 and 4-7)

C Key switch

D Emergency stop button

E Fuse

F Controller

G Shut-down relay 1

H Shut-down relay 2

J Stop motor

K Switch

L Motor control - operating position

M Motor control - stop position

N To motor driver

P Emergency stop signal

Section C

Electrics

9803/6400

Section C

4 - 7

Issue 1

Engine Control

jcb JS220 Service Manual

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