NORD Drivesystems BU0090 - Manual (Page 19)

2 Modules
BU 0090 GB 19
2.5 Description of connections to the AS interface module
SK TU1- / TU3-AS1
By means of the AS interface cable and the AS interface master the sensors and actuators are connected to
the automation device via the AS interface module. To connect an SK TU1 / TU3-AS1 module to an AS
interface network, special connecting accessories must be used. An AS interface cable with an M12 connector
and open cable ends is required in order to connect to the Phoenix terminals of the SK TU1 / TU3-AS1.
SK TU2-ASx
To connect the SK TU2-ASx module, M12 components (socket - plug) are used on both sides. Two individual
cables with a cable branch for the PWR connection and a second cable branch for the AUX connection can be
used, or by the use of a combined cable branch module both connections (AUX and
PWR) can be made by means of a cable to the PWR connector.
The wire colours and the assignment of pins for the M12 components is as follows:
Designation Connection Connector PWR
Pin Colour
Connector AUX
Pin Colour
AS-i (+) 1 brown - -
AS interface PWR
AS-i (-) 3 blue - -
AUX 24V 4 black 1 brown
AS interface AUX
AUX GND 2 white 3 blue
In both connectors pin 5 is not used. Pins 2 and 4 of the AUX connector are also not used.
2.5.1 Connection of the AS interface bus cable
The yellow unshielded AS interface cable (profile cable) is a
rubberised 2-core cable, which connects the AS interface
module to the AS interface network. This cable provides
both the power supply to the sensors and actuators as well
as the transfer of data between the AS interface master and
the connected slaves. When connecting to the terminals,
care must be taken that the wires are connected to the
correct colours in order to prevent incorrect polarity. A
separate AS interface cable should be used for each AS
interface conductor.
AS Interface connection PWR:
• AS-i (+) If the standard cable is used, this is the brown wire.
• AS-i (-) If the standard cable is used, this is the blue wire.
The AS interface bus cable is connected to the PWR AS-i (+) and PWR AS-i (-) terminals. For the AS interface
module SK TU1 / TU3-AS1, terminals 1 and 2 are on connector 2 (see Section 2.1.2 / 2.2.2).
On the AS interface module SK TU2-ASx, the wire to AS-i (+) must be wired to pin 1 of the PWR connector
and AS-i (-) to pin 3 (see Section 2.3.2).
AS - Interface Busleitung
rubberised
2-wire profile cable
AS-i (-)
AS-i (+)
insulation-piercing pins
AS interface bus cable