Technical data

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• DOK-DIAX02-DDC01******-PRJ1-EN-E1,44 • 01.97

3. Electrical Connections - Installation Guidelines

Fig. 3.18: DDC mains contactor with dynamic brake and safety door monitor

Q10

motor

power

connection

DC 24V

SSANSTNETZZWSCHT

• with DC bus dynamic brake

• if an E-stop relay is implemented

X8/15

X8/16

X8/17

K10

X8/18

X8/7

X8/8

NC control unit of DDC

3 x AC

(50-60Hz)

autotransformator

DST

3 x AC 230V

ZKS

OFF

X8/19

X8/20

K4 K1

X7/A

X7/B

ZKS

K10

Q10

S11

S12

ready

Control voltage

S11

S12

E-stop relay

K10

safety door

closed

Example: Depending on safety requirements at the machine,

additional monitoring capabilities or locking devices may be

necessary!

drive

enable

X8/9

X8/10

+24 V

machine NC control

machine E-stop

K10

= ready

= power supply fuse

= mains contactor in DDC

= auxiliary relay for switching K1

= E-stop relay

= error message of the NC controls

- open with faulty drive (servo error)

- closed with E-stop

= main switch

1) Drive enable signal

• drive enable input with analog interface

• E-stop input with DLC

2) Only applies to DLC single-axis positioning modules

If the NC control unit of the machine switches the E-stop input of the DLC off when the UD contact is open, then the message

"E-stop" is stored with each powering down. The NC control unit of the machine can, during the course of one program cycle and

prior to starting the program, clear the message "E-stop" with a CLEAR signal. Under some circumstances, error diagnoses can be

cancelled. It is not necessary to switch the E-stop input of the DLC off as part of a general powering down. As part of a general

powering down, the NC controls of the machine can, for example, suppress the evaluation of the UD contact. The NC control of the

machine cannot, however, start the program if the UD contact is closed.

= E-stop

= end positon of axis

= power off

= power on

= safety door monitoring