Connector Pin Assignment - HBM T40B Mounting Instructions

T40B
 Do not route the measurement cables parallel to power lines and control cir­
cuits. If this is not possible, protect the measurement cable with steel conduits,
for example.
 Avoid stray fields from transformers, motors and contact switches.
 Do not ground the transducer, amplifier and indicator more than once.
 Connect all devices in the measuring chain to the same grounding con­
ductor.
 In the case of interference due to potential differences (compensating cur­
rents), the connection between supply voltage zero and housing ground
must be broken at the amplifier and a potential equalization line established
between the stator housing and the amplifier housing (copper conductor, at
2
least 10 mm wire crosssection).
 Should differences in potential occur between the machine rotor and stator
because of unchecked leakage, 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.

5.3 Connector pin assignment

The stator housing has two 7‐pin connectors, an 8‐pin connector and a 16‐pin
connector.
The supply voltage connections and shunt signal connections of connectors 1
and 3 are each electrically interconnected, but are protected against com­
pensating currents by diodes. There is also an automatically resetting fuse
(multifuse) to protect the supply connections against overload by the stator.
A3452-4.0 en/de
25
HBM