Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 136)

136
Analog Inputs and Analog Outputs
Analog Input Characteristics
The table describes the characteristics of the analog inputs:
Characteristic Voltage input Current input
Number of maximum input channels 2
Input type Single-ended
Input range -10... 10 Vdc/0...10 Vdc 0...20 mA/4...20 mA
Input impedance 1 M Ω or more 250 ± 0.11% Ω
Sample duration time 10 ms per channel + 1 scan time
Total input system transfer time 20 ms + 1 scan time
Input tolerance Maximum deviation
at 25
° C (77° F)
without
electromagnetic
disturbance
± 1% of the full scale
Maximum deviation ± 2.5% of the full scale
Digital resolution 13 bits
Temperature drift ± 0.06% of the full scale
Common mode characteristics 80 db
Cross talk 60 db
Non-linearity ± 0.4% of full scale
Input value of LSB 5 mV 10 μΑ
Maximum allowed overload (no
damages) ± 30 Vdc (less than
5 minutes)
± 15 Vdc (No damage) ± 30 mA dc
Protection type Photo coupler between input and internal circuit
Cable Type Shielded
Length Must be less than 3 m for IEC61131-2
conformance. Maximum transmission distance is
10 m.
Terminal blocks Type: 3.5 mm (0.137 in.) pitch
Terminal blocks are removable
Isolation External input: Photo coupler isolation
Between channels: Non-isolated