User's Manual

Shunt signal
50 A4429-1.0 HBM: public T40FH
8 Shunt signal
The T40FH torque flange delivers an electrical shunt sig
nal that can be activated from the amplifier for measuring
chains with HBM components. The transducer generates
a shunt signal of about 50% of the nominal (rated)
torque; the precise value is specified on the type plate.
After activation, adjust the amplifier output signal to the
shunt signal supplied by the connected transducer, to
adapt the amplifier to the transducer.
Information
The transducer should not be under load when the shunt
signal is being measured, as the shunt signal is mixed
additively.
Triggering the shunt signal
Applying a safety extra-low voltage of 5 … 30 V to pins 6
(+) and 7 (
) at connector 1 or 3, triggers the shunt sig
nal.
The nominal (rated) voltage for triggering the shunt signal
is 5V (triggering at U > 2.5V), but when voltages are less
than 0.7V, the transducer is in measuring mode. The
maximum permissible voltage is 30V, current consump
tion at nominal (rated) voltage is approx. 2 mA and at
maximum voltage, approx. 18 mA. The trigger voltage for
the shunt signal is electrically isolated from the supply
voltage and the measuring voltage.
Tip
The shunt signal can be triggered by the amplifier or via
the operating software in HBM system solutions.