Menu 7: Analog I/O - Emerson Mentor MP Advanced User's Manual

Parameter
Menu 7
structure
5.8

Menu 7: Analog I/O

Hardware
The drive has three analog inputs (AI1 to AI3) and two analog outputs (AO1 and AO2). Each input has a similar parameter structure and each output
has a similar parameter structure. The nominal full scale level for inputs in voltage mode is 10V. This ensures that when the input is driven from a
voltage produced from the drive's own 10V supply, the input can reach full scale.
Terminal Input
5/6 AI1
7 AI2
8 AI3
Terminal Output
9 AO1
10 AO2
Update rate
The analog inputs are sampled every 4ms except where the destinations shown in the table below are chosen, the input is in voltage mode and other
conditions necessary for short cutting are met.
Input destination
Pr 1.36 - Analog reference
Pr 1.37 - Analog reference
Pr 3.22 - Hard speed reference
Pr 4.08 - Torque reference
Analog outputs are updated every 4ms except when one of the following is the source and high speed update mode is selected. In high speed mode
the output operates in voltage mode, is updated every 250μs, special scaling is used as described in the table and the user scaling is ignored.
Output source
Pr 3.02 – Speed
Pr 4.01 - Current magnitude
96
Keypad and
Parameter x.00
display
Input modes
Voltage only
0 to 6
0 to 9
Output modes
0 to 3
0 to 3
Sample rate
250μs
250μs
250μs
250μs
Al1, Al2 or Al3
Scaling
10.0V = SPEED_MAX
10.0V = Rated drive current / 0.45
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Parameter description Advanced parameter
format descriptions
Resolution
14 bit plus sign
10 bit plus sign
10 bit plus sign
Resolution
10 bit plus sign
10 bit plus sign
Serial comms
Performance
protocol
Mentor MP Advanced User Guide
Issue Number: 1