External Axes - ABB IRB 4400 Manual

Technical specification

3.9 External Axes

An external axis is an AC motor (IRB motor type or similar) controlled via a drive unit
mounted in the robot cabinet or in a separate enclosure according to Figure 30. See
Specification of Variants and Options.
Resolver
Resolver supply
Absolute position is accomplished by battery-backed resolver revolution counters in
the serial measurement board (SMB). The SMB is located close to the motor(s) as
shown in Figure 30, or inside the cabinet.
For more information on how to install an external axis, see the Product Manual -
Installation and Commissioning.
Alternatively, it is possible to communicate with external drive untis from other
vendors. See Product Specification RobotWare.
Not supplied on delivery
Not supplied
on delivery
46
SMB
SMB
SMB
SMB
alt.
Drive System 2 inside
user designed cabinet
(no ABB drives)
Figure 30 Outline diagram, external axes.
Product Specification IRB 4400 M98A/BaseWare OS 3.2
Connected directly to motor shaft
Transmitter type resolver
Voltage ratio 2:1 (rotor: stator)
5.0 V/4 kHz
Measurement System 2
Not supplied on delivery
Measurement
System 1
SMB