AST BA 662, Руководство пользователя

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Manual BA 662
Technical changes reserved. 09/2016 Page 5 of 10
A.S.T. - Angewandte System Technik GmbH, Mess- und Regeltechnik
3.4. Connections
Installation recommendations

Use shielded cables.

Use the largest possible cable cross section (Error due to cable extension).

Lay the measuring lines separately from the power supply lines.

At the force transducers and the measuring amplifier, make as short as possible a
connection to earth, in particular in strong electromagnetic fields.

Additionally, lay an equipotential bonding parallel to the measuring line.

Keep away from stray fields of motors, transformers and contactors.

Connect force transducers, amplifier, mains unit, and indicator / processor unit with earth in
one place only.

Set the slide switch for the sensing line (6- or 4-wire) according to the sensor connection.
3.5. How to connect signal output
The Bridge Amplifier BA 662 provides different output signals, depending upon the setting of
the slide switches. (see 4.6)
NOTE Either the current output or the voltage output can be used, not both at the
same time.
TIP: o form the sum, current outputs of several BA662 can be connected in parallel. In
this case, 12V should not be exceeded at the standard output and the maximum load
(load resistance) be <12V /

I
Out
.Voltage outputs must not be connected in parallel.
3.6. Trigger input
The BA662 has an optically separate trigger input so that the zero-setting can be carried out by
means of a superior control. The overload limit is not affected by such a zeroing.
The function is started by a 24 VDC trigger impulse.
Note! The measuring amplifier is protected against reverse polarity .
Terminal connection Description
-Ex neg. Exitation voltage
Sensor with
6-wire
-Se neg. Sense signal
+Se pos. Sense signal
+Ex pos. Exitation voltage
+Si pos. Signal
-Si neg. Signal
NC not connected
SHI Shield
AG Ground for output signal
Outuput signal
V
out
Voltage output
I
out
Current output
NC not connected
24V Supply voltage
Power supply
0V Supply voltage ground
Tr+ Trigger 24V
electrically isolated input
Tr- Trigger 0V