Technical data

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• DOK-DIAX02-DDC01******-PRJ1-EN-E1,44 • 01.97
3. Electrical Connections - Installation Guidelines
3.16. Control Inputs
Connector:X8/15-X8/16
Voltage: 24V DC
Current consumption: 150 mA
Input open closed
ZKS
Power OFF Power ON
Operating state DC bus dynamic braking DC bus dynamic braking
active not active
The mains contactor on a DDC cannot be turned on unless ZKS input is
closed. As an additional feature, when trouble occurs in the electronic system
of the drive, the drive can be braked to a stop by opening the ZKS input. This
causes the bus voltage to shorted internally in the DKC. The DC bus dynamic
brake is an additional machine protection.
Connector X8/17-X8/18
Voltage: 24V DC
Current consumption: 150 mA
DC bus dynamic brake
Only when the input is closed can the mains contactor be activated. If the Off
input is opened, e.g., with an E-stop, then the mains contactor on the DDC is
turned off immediately. However, the internal bus is not shorted.
Connector X8/19-X8/20
Voltage: 24V DC
Current consumption: 150 mA
If the ZKS and the OFF inputs are closed and the device is ready, closing the
ON input will perform a soft start for the power section in the DDC. The mains
contactor then goes to a self-holding state. The activating pulse must be
present for approximately 100 ms.
Input open closed
OFF
Operating state Power OFF Power ON
Input open closed or open and
ON self-holding closed
Operating state Power OFF Power ON
Power ON
Power OFF