Adjustment Of Analog Input - Mitsubishi Electric 800 Series Instruction Manual

 Analog input display unit changing (Pr. 241)
• You can change the analog input display unit (%/V/mA) for analog input bias/gain calibration.
• The display units of C3 (Pr. 902) and C4 (Pr. 903) change as shown below.
Analog command
(terminal 40)
0 to 20mA input
3.5.3

Adjustment of analog input

 Filter of terminal 40 input
When giving the speed command from terminal 40 input, settings of Pr. 74 Input filter time constant is valid.
Refer to the inverter manual for details of Pr. 74 Input filter time constant.
 Calibration and adjustment of terminal 40
Pr. 242 Terminal 1 added compensation amount (terminal 2/terminal 40) becomes valid for terminal 40 and compensation
of terminal 40 input is made by terminal 1 input.
Pr. 849 Analog input offset adjustment becomes valid for terminal 40 and terminal 40 input is provided with offset.
Refer to the Instruction Manual (Detailed) of the inverter for details of Pr. 242 and Pr. 849.
Pr. 241 = "0 (initial value)"
0 to 20mA → displayed in 0 to 100%
(0.1%).
Pr. 241 = "1"
0 to 100% → displayed in 0 to 20mA
(0.01mA).
ANALOG CURRENT INPUT
3
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