Technical information

5 – PARAMETER DESCRIPTIONS
74
P49 Analog Input Offset I/O 11
LCD Display
I/O:Ain Offset
11 0 %
Range 0 – 99% (Default 0%)
Description The analog input can be offset so that a 0% reading can occur when a non-zero input signal is being
applied.
Example: Input level of 2V (4mA) => 0% input. In this case the Analog Input Offset parameter
should be set to 20% so that the 2v (4mA) input signal results in a 0% input reading.
NOTE: For a 4-20mA input, set the Analog Input Span to 80% and the Analog Input Offset to 20%.
NOTE: The measured input reading is clamped at 0% minimum.
See Also Analog Input Trip Level parameter on page 72
Analog Input Trip Time parameter on page 72
Analog Input Span parameter on page 73
Starter Type parameter on page 81
Section 2.1.4, Configuring the Analog Input, on page 11
Theory of Operation section 8.6, Phase Control, on page 131
Theory of Operation section 8.7, Current Follower, on page 133
P50 Analog Output Function I/O 12
LCD Display
I/O: Aout Fctn
12 0
Range 0 – 11, (Default 0/OFF)
Description The Analog Output Function parameter selects the function of the analog output. The available
analog output function selections and output scaling are shown below. The analog output is updated
every 25msec.
Options LED LCD
0 OFF OFF, Disabled (Default)
1 0 – 200% Curr Based on per cycle RMS values
2 0 – 800% Curr Based on per cycle RMS values
3 0 – 150% Volt Based on per cycle RMS values
4 0 – 150% OL Motor Thermal Overload
5 0 – 10 kW Based on filtered V and I values
6 0 – 100 kW Based on filtered V and I values
7 0 – 1 MW Based on filtered V and I values
8 0 – 10 MW Based on filtered V and I values
9 0 – 100% Ain The output value takes into account the inputs span and offset settings
10 0 – 100% Firing Output Voltage to Motor, based on SCR firing angle
11 Calibration Calibration, full (100%) output
See Also Analog Output Span parameter on page 75
Analog Output Offset parameter on page 75
Section 2.1.5, Configuring the Analog Output, on page 11
Theory of Operation section 8.6, Phase Control, on page 131
Theory of Operation section 8.7, Current Follower, on page 133