Parameter group 3: reference/ramps, Af-60 lp™ micro drive programming guide, 3-** reference/ramps – GE Industrial Solutions AF-60 LP Micro Drive User Manual

Page 26: 3-0* reference limits, 3-1* references

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4.4. Parameter Group 3: Reference/Ramps

4.4.1. 3-** Reference/Ramps

Parameters for reference handling, definition of limitations, and configuration of the frequency converter's reaction to changes

4.4.2. 3-0* Reference Limits

Parameters for setting the reference unit, limits and ranges.

3-00 Reference Range

Option:

Function:

Select the range of reference and feedback signals. Values can be both positive and negative, unless par. 1-00,

Configuration Mode, is set to Process Closed Loop [3]. In that case only positive values are allowed.

[0]

*

Min - Max

Reference setpoint ranges can have positive values only.

Select this if running in Process Closed Loop.

[1]

-Max - +Max

Ranges can have both positive and negative values.

3-02 Minimum Reference

Range:

Function:

0.00

*

[-4999 - 4999]

Enter value for minimum reference.

The sum of all internal and external references are clamped (limited) to the minimum reference value, par. 3-02.

3-03 Maximum Reference

Range:

Function:

Maximum Reference is adjustable in the range Minimum Reference - 4999.

50.00

*

[-4999 - 4999]

Enter value for Maximum Reference.

The sum of all internal and external references are clamped (limited) to the maximum reference value, par. 3-03.

4.4.3. 3-1* References

Parameters for setting up the reference sources. Select the preset references for the corresponding digital inputs in parameter group 5.1*, Digital Inputs.

3-10

*

Preset Reference

Option:

Function:

Each parameter set-up contains 8 preset references which are selectable via 3 digital inputs or bus.

[18]

Bit2

[17]

Bit1

[16]

Bit0

Preset reference no.

0

0

0

0

0

0

1

1

0

1

0

2

0

1

1

3

1

0

0

4

1

0

1

5

1

1

0

6

1

1

1

7

Table 4.1: Par. 5-1* selection [16], [17] and [18]

[0.00]

*

-100.00 - 100.00%

Enter the different preset references using array programming.

Normally, 100% = value set in par. 3-03, Maximum Reference.

However, there are exceptions if par. 3-00 is set to Min - Max, [0].

Example 1:

AF-60 LP™ Micro Drive Programming Guide

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