4 commissioning of the as interface, Commissioning of the as interface – NORD Drivesystems BU0200 User Manual
Page 164
5 Commissioning
BU 0200 GB-4411
Subject to technical alterations
163
Illustrations: AS interface connection variants on SK2xxE S 1
Terminal 84
AS +
Terminal 85
AS -
Option:
AS Interface
M12 flanged plug
Option:
Sensor/Actuator
M12 flanged plug
5.4.4
Commissioning of the AS Interface
Connection
Connection of the AS interface cable is made
via terminals 85/85 of the terminal block and
can optionally be made to an appropriately
labelled M12 flange plug contact (yellow)
Details of the connection terminals are
explained in Section 2.8.2.
Control voltage - frequency inverter supply
SK 220E / SK 230E
The yellow ASi cable supplies the AS interface with the necessary control voltage.
SK 225E/SK 235E
With the use of an AS interface, the FI control unit is supplied via the yellow AS-i cable. In this case, a
voltage of 24V is provided to terminal 44.
Connection of an additional voltage source to this terminal is not permitted and may cause damage to the
device!
If the AS interface ("yellow cable") is not used, the control voltage is supplied to the frequency inverter in the
usual way via terminals 44/40.
NOTE
For use of the yellow AS interface cable:
no voltage source may be connected to terminals 44/40,
the frequency inverter supply is via the yellow AS-i cable;
the supply voltage (24V) for the use of the digital inputs or other external peripherals
(e.g. activators) can be obtained from terminals 44/40. The total permissible current is
restricted to 60mA!
As the permissible load on terminal 44 is limited to 60mA if the AS interface is used, in case of higher
current requirements there is the possibility of including an additional mains unit (e.g. SK CU4-
…-24V) to
supply the additional peripherals. However, under no circumstances may the 24V from the mains unit be
connected to the frequency inverter (See also the following connection example).
If a total current load of 60mA is not exceeded, it is also permissible to supply initiators via terminal 44 of the
frequency inverter.