Power Supply For External Peripherals; Maximum Current Consumption For Wtx110-A - HBK WTX110 Bedienungsanleitung

4.9

Power supply for external peripherals

The WTX110-D provides a supply voltage for external devices. This is usually used to
supply digital load cells (section 4.4.1, "Internal power supply", page 21), but you can also
supply other devices with it. A 12 V power supply is available at terminals KL1
(connectors 1, 2) and KL3 (connectors 1, 2).
Terminal
KL 1
KL 3
When connecting external components with their own power supply, such as serial
interfaces, make sure that only safety extra-low voltages (SELV) are used there too.
Notice
It is essential that you adhere to the maximum current consumption specified below.
Otherwise the device may overheat!
4.9.1

Maximum current consumption for WTX110-A

ADM installed in slot ADM1 with up to 8 analog load cells at 350 ohms each:
Current consumption
of USB device
0 ... 100 mA
100 ... 300 mA
300 ... 500 mA
40
1
0 V
0 V
Current consumption 12 V for peripheral devices on KL1 and
2
+12 V
+12 V
KL3 (total)
400 mA max.
300 mA max.
200 mA max.
INSTALLATION AND ELECTRICAL CONNECTION
WTX110