CD Automation srl CD3000E-3PH from 25A to 500A User’s Manual
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12.3 Analog Inputs
The CD3000E thyristor unit has 2 configurable analog inputs (0÷10V, 4÷20mA, ecc):
The primary input for the analog setpoint, the secondary input for the Current Profiler or Ext. Feed-Back.
12.3.1 Primary Input (Terminals 8 and 7)
The primary input is already configured in line with customer requirements that are defined in the Order
Code. The Order Code is written on the identification label.
However, if you wish to change the primary input (ex. from 0÷10V to 4÷20mA) proceed as follows:
Size S09 Size S11/S13/S14
Type Input features Jumper
0÷10V (default)
Impedance
40KΩ
Open
POT Impedance
10KΩ min
Open
4÷20mA
Impedance
500Ω
Close
Primary Input calibration procedure
When you change the hardware setting is necessary make the Input calibration procedure.
To make the Input calibration procedure follow these steps:
• Give the power supply.
• With Control Panel go in the Hardware menu (P000 = 5)
• Set the input signal to the min value (ex. 0V for 0÷10V or 4mA for 4÷20mA)
• Set the parameter P057 = 1
• Press ENTER key
• Set the input signal to the max value (ex.10V for 0÷10V or 20mA for 4÷20mA)
• Set the parameter P058 = 1
• Press ENTER key
The Input calibration procedure is done.
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