User's Manual

Table Of Contents
Electrical connection
T40B A3452-10.0 41
S Should differences in potential occur between the
machine rotor and stator because of unchecked leak
age, for example, this can usually be overcome by
connecting the rotor definitively to ground, e.g. with a
wire loop. The stator must be connected to the same
(ground) potential.
6.3 Connector pin assignment
The stator housing has two 7‐pin plugs, an 8‐pin plug and
a 16‐pin plug.
The supply voltage connections and shunt signal connec
tions of plugs 1 and 3 are each electrically intercon
nected, but are protected against compensating currents
by diodes. There is also a self‐resetting fuse (multifuse)
to protect the supply connections against overload by the
stator.
Note
Torque flanges are only intended for operation with a DC
supply voltage. They must not be connected to older
HBM amplifiers with square‐wave excitation. This could
destroy the connection board resistors or cause other
faults in the amplifiers.