HBK U9C, Mounting Instructions

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U9C
ELECTRICAL CONNECTION
8.2.2 Connecting the device
The device is connected via a M12 plug on the front of the inline amplifier. The assign­
ment is set out in the following table. The supply voltage must be within the specified
range (19 ... 30 V).
Pin Version VA 1
(voltage output)
Version VA 2
(current output)
KAB168
connection cable
wire assignment
1 Supply voltage 0 V (GND) white
2 Not in use brown
3 Control input zero setting green
4 Not in use yellow
5 Output signal
0 ... 10 V
Output signal
4 ... 20 mA
gray
6 Output signal
0 V
Not in use pink
7 Not in use blue
8 Voltage 19 ... +30 V red
The cable connecting the inline amplifier to the next link in the measurement chain must
not exceed 30 m in length.
8.2.3 Operating the inline amplifier/zeroing the measurement chain
The measurement starts as soon as the sensor is connected to a supply voltage and the
output of the amplifier is connected to the next link in the measurement chain.
If you apply a voltage > 10 V to the “Zero” input, a one-time zeroing is performed. After
this zeroing, the device continues to measure, even if you apply a voltage above 10 V to
the input.
To trigger a new zeroing operation, the input must first be set to 0 V and then be reset by
applying a voltage of over 10 V.
Notice
Please note that you can zero the measurement chain with any force applied. If an initial
load is already acting on the force transducer, it is essential to consider it, otherwise the
force transducer may be overloaded.
The zero point is not permanently stored in the device. If you have disconnected the mea­
surement chain from the supply voltage, we recommend zeroing again.