Technical information

2 – CONTROL CARD
11
2.1.4 Configuring the Analog Input
The analog input can be configured for Voltage or Current loop. The input is shipped in the Current Loop configuration unless
specified in a custom configuration. Next to the analog input terminal block is JP3. When the jumper is installed, the input is a
current loop. When removed, it is a voltage input. The control card is shipped with the jumper JP3 installed.
The analog input accepts a true differential signal through the AIN+ and AIN- terminals.
Figure 3 – Wiring Example of a Differential Voltage Analog Input
AIN
PWR
AIN+
AIN-
SHLD
JP3
Differential
Voltage
Signal
+
JP3 removed for
a voltage source
If the analog input is to be connected to a potentiometer, it may be powered by the AIN PWR terminal and must be grounded to the
COM terminal on the analog output terminal block. The potentiometer may be 2.5k to 10k Ohms.
Figure 4 – Wiring Example of a Potentiometer on the Analog Input
AIN
PWR
AIN+
AIN-
SHLD
JP3
JP3 removed for
potentiometer on
Analog Input
2.5k to 10k
Pot
SHLD
COM
AOUT
NOTE: The analog output signal common also serves as the analog input signal common.
NOTE: The analog input is a low voltage input, maximum of 15VDC. The input will be damaged if control power (115VAC) or
line power is applied to the analog input.
2.1.5 Configuring the Analog Output
The analog output can be configured for Voltage or Current loop. The output is shipped in the Voltage configuration unless specified
in a custom configuration. Next to the analog output terminal block is JP1. When the jumper is installed, the output is Voltage.
When removed, it is a current loop output. The control card is shipped with the jumper installed.
NOTE: The analog output single common also serves as the analog input single common.