ABB MID 1000, Product Manual

Page: 47 / 102

3 Installation
3.1 Installing motor units
Attachment screws
The table shows tightening torques for the attachment screws of the motor units.
The values are valid for non-lubricated screws. All screws should be of quality 8.8.
Tightening torque [Nm] ±10% Screw Motor unit
4 M4 MU 80
10 M6 MU 100
24 M8 MU 200
24 M8 MU 250
24 M8 MU 300
47 M10 MU 400
Use washers with minimum hardness 200HV (190HB).
Prerequisites
CAUTION
Never overheat the motor. The winding temperature must not exceed 140° C.
Check that the temperature on the motor frame is lower than 100°C.
WARNING
If the motor unit is used in an arc welding station, the SMB box must always be
insulated from the weld circuit. See
Insulation in arc welding stations on page 64 .
Motor connection
Positive electric rotation R ->S ->T -> (U, V, W) results in positive mechanical
rotation defined as clockwise direction, seen from the drive shaft side. See
illustration below.
+
xx0400001171
Continues on next page
Product manual - Motor Units and Gear Units 47
3HAC040148-001 Revision: K
© Copyright 2011 -2018 ABB. All rights reserved.
3 Installation
3.1 Installing motor units