8400 BaseLine D | Software Manual
I/O terminals
Analog input
112
L
Firmware 03.00 - DMS EN 5.0 - 07/2009
6.1
Analog input
The controller has an analog input which serves to detect voltage signals as e.g. an analog
speed setpoint selection or the signal of an external sensor (temperature, pressure, etc.).
The following areas can be parameterised:
0 ... 10 V,
= 0
0 ... + 5 V,
= 1, with external load resistor (250
Ω):
0 ... 20 mA
+ 1 ... + 5 V
= 2, with external load resistor (250
Ω):
4 ... 20 mA
Moreover, current signals in the 0/+4 ... +20 mA range, ("Life Zero" including open-circuit
monitoring) can be detected via a load resistor (250
Ω)
connected to the terminals.
Further possible parameter settings of the input signals of
– offset and
– gain
Diagnostics options:
– The monitored input can be queried with a status signal.
– Input and output values of the system block are displayed in the »Engineer« /
internal keypad.
Note!
To prevent undefined states, free input terminals of the controller must be
assigned as well, e.g. by applying 0 V (GND) to the terminal "X4/A1U".