Specifications

• DOK-DIAX01-MAIN+2AD+1M-ANW1-EN-E1,44 • 07.97
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When installing the RAC into the control cabinet, ensure that the
housing makes a good electrical connection with the cabinet. Faults
could otherwise occur.
• Twisting the load conductors:
The motor connections from the RAC should either be twisted or a
four-core cable (3 x phase, 1 x earth) should be used.
• Connections to other KDA modules (RAC 2.2 only):
The power connections to additional KDA main drive modules should
be twisted and kept as short as possible.
The cross sections of conductors must be such that the permissible
current densities stipulated by the relevant specifications (VDE 0100 and
VDE 0113) are not exceeded at the maximum ambient temperatures and
the corresponding continuous motor and transformer currents.
Check that the conductors are securely attached to the terminals,
otherwise there is the risk of damage. The subminiature connector must
be screwed up!
The control voltage and monitor connections are made via a bus cable
the black core of which is underneath. An end connector is not required.
The shields of the command cable and motor feedback cable, the spindle
transmitter cable and temperature sensor leads must be connected at
the RAC.
Where a power transformer is required, ensure that the primary and
secondary sides of the transformer are not interchanged. Excessively
high supply voltage can damage the drive package!
1.5.3 Checks with Mains Supply Connected/Power Circuits
Disconnected
First, with the RAC switched off, disconnect the speed command from
the controller (X4) and remove the connections to the control inputs and
signal outputs (X2). Connect the command value box to interface X4 and
connect up the control inputs X2 as shown in Figure 14 of section 1.3.
RAC 2.2: set master switch to ON
RAC 3.1: apply 220 V control voltage to terminal X14
Check the following messages on the control panel:
• both the READY and FAULT LEDs remain off
• NO POWER appears in the display
Check operation of blower on the controller and the main drive motor.
A transformer is only required for the motor blower supply if the RAC 3.1
or RAC 4.1 is connected to three-phase mains supplies with rated
voltages exceeding 3 x 420 V, 50 Hz. There are terminals for the motor
blower on the RAC 2.2.
1. Commissioning INDRAMAT AC Main Spindle Drives
Cross sections of power
cables
Checking the terminals and
the connectors
Bus connecting cable to
additional KDA drive module
(RAC 2.2 only)
Power transformer
connections
Shielding
Blower operation
Control voltage ON