7
t
pulse
can be connected with an external speed sensor. It can also be
used as a common switch input port. See Section 7.2 for details.
Figure 4.6 Schematic diagram of connection of high-speed pulse input port
4.4 Connection method of large screen display
ou
tp
ut
Communic
ation
current
loop
This instrument can be connected to one or two large-screen
displays. It should be noted that this interface is multiplexed
with the high-speed pulse input port (SPEED), and only one
function can be selected at the same time. The factory defaults
to high-speed pulse input. If you want to use this function, you
must first set the parameter F32. See Section 7.2 for details.
Figure 4.7 Schematic diagram of connection of large screen display
Note: Two large screens can also be connected in parallel, for example, the two
input lines of two large screens can be connected in parallel in the left figure.
4.5 Connection method of load cell
in
pu
t
weighing
cell
This instrument has two high-precision AD channels, which can be
connected to two weighing sensors at the same time and used as
a double scale. The output arch bridge voltage of the instrument
is DC5V, the excitation current is > 200mA, and it can be connected
to at most 12 350
Ω
weighing sensors, with the signal input range
of -20mV~+20mV, and the sensitivity of the connected sensors can
reach up to 4 mV/V. 6-wire connection or 4-wire connection is
optional. See the following table for the meaning of sensor
interface.
4.5.1 Label and function of load cell interface