RS 485 interface
The RS 485 interface is used for programming, parametrization and
diagnoses at start up and service.
It makes possible:
• the implementation of a serial bus with up to 31 participants connected
via a two-wire cable (half duplex mode).
• A transmission length of up to 500 m
• Transmission rates of 9600/19200 baud.
• The use of a centrally PC supported visualization unit.
Using an RS 485 makes possible the commissioning of several DKCs
with DriveTop without changing the interface cables.
The following options for working with RS485 are available
• RS232/RS485 converter between PC and drives
• RS485 plug-in card in PC
Once the ready to operate contact “Bb” closes, then the drive controller is
ready to receive power.
Contact “Bb” closes once power voltage is on and all monitoring functions
have signalled they are operational.
Contact “Bb” can be evaluated, e.g., in the control system so that it can
recognize, in the event a unit, in hardware terms, is defective, which drive
controller in the drive package has failed.
Circuit load: DC 24 V, 1 A (maximum = continuous)
Minimum load of contact: 10 mA
Supplementary information on starting lockouts is outlined in the
description “Starting lockout function in DDS drive controllers”
DOK-DIAX02-DDS*ANL*FKT-AWXX-EN-P.
AS+, AS-:
• control inputs for relay coils
• voltage: DC 20 …. 30 V
• power: 1.5 W
ASQ, ASQ:
Potential-free feedback contact which acknowledges the actuating of the
starting lockout to an external control.
Breaking capacity: DC 24 V, 1 A (maximum = continuous)
The actuation of the relay of the starting lockout in the drive controller is
confirmed by the closing of the potential-free feedback contact (output
ASQ – ASQ) to the external control.
To activate the starting lockout, apply a voltage of DC 20 to 30 volts
between AS+, AS-.
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