Bosch 4306 Service Manual download pdf (Page 31)

• DOK-POWER*-KDV*2.3****-ANW1-EN-E1,44 • 06.97

4. Control circuits

Figure 4.4: Control circuits without soft-start resistor with dynamic braking

Q10

L-

L+ L+

L+

Bb Bb

KDV/Bb1

+24V

+/- 10%

R2 R4

control

voltage

supply

Leistungsteil

Supply module

KDV 2

additional

drive

modules

Drive module

E-Stop

drive

module

end

position

OFF

Bb1 = supply module ready (drive system)

Bb = drive module ready

F1 = power supply fuses

F2 = electronics and blower fuses

K1 = mains contactor

K2 = dynamic brake contactor

K3 = decoupling Bb1

K4 = holding brake control

K10 = decouple thermal contact for power transformer

NC = error signal from the control

- open for fault drive (servo error)

- closed for E-Stop

Q10 = mains disconnect

RF = drive enable signal from controller

RK = dynamic brake resistor

S1 = E-stop

S2 = axis limit switch

S3 = safety doors

S4 = power off

S5 = power on, cancel dynamic braking

T1 = power transformer

Y1 = Take delay time of electrically released holding brake

of feed axes in account! Do not apply velocity

command until 100 ms after RF-ON.

NOTE! After K2 drops out, the contact must not be switched on for 0.5 seconds. Opening and closing of K2 due

to S2 or K2 being activated intermittently must absolutely be prevented, otherwise K2 may be damaged. After it is

switched off, contactor K2 must only re-energized by a defined command, for example, S5.

SSKDV2.3/1

Control circuit: • with dynamic brake

• controlled braking by the drive electronics in an E-stop

K10

X10/6

X10/7

K10

910

1) Only in the holding brakes of feed drives that are not controlled by the drive module.

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Bosch 4306 Service Manual Page 31

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