LNS QUICK LOAD SERVO III MI - Page 37

CHAPTER 4: ELECTRICS 4-5
QUICK LOAD SERVO III MI
C60H
MULTI9
1.4. Description of the elements in the cabinet
1.4.1. Main disconnect switch QS1
In accordance with the requirements of the international IEC standards, when the main disconnect switch
is at 0off, it interrupts the input of the three phases in the control cabinet of the bar feed system.
1.4.2. Main circuit breaker QM1
Circuit breaker QM1 interrupts the 3 phases, which power the hydraulic motor.
If the motor requires excessive power, the circuit breaker
activates and push-button (C) STOP is released. For safety
reason, the power supply to the motor is immediately
interrupted. After having located and repaired the problem
causing this interruption, reset the circuit breaker by pressing
the push-button (F) START.
At the factory, the breaking current is set to 2.5 amperes.
1.4.3. Circuit breaker QF1 (4 Amps)
Circuit breaker QF1 protects the two phases, which power the
transformer.
Should the latter require excessive power (>4 Amps), the breaker
activates and lever (B) flips down.
The power supply to the transformer is immediately interrupted to
avoid material damages.
After having located and repaired the problem causing this
interruption, reset the lever (B) of the circuit breaker.
Designation Description
A Power in connecting terminal
B Setting the breaking current
C Release button
D Power out connecting terminal
E Test push-button
F Reset button
Designation Description
A Power in connecting terminal
B Lever on/off
C Power out connecting terminal
O I
2.5
Test
3
3.5
1L1
2T1
3L2
4T2
5L3
6T3
4
A
B
F
C
E
A
B
C