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Delta MMC120 User Manual

Page 85

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85

Command Value: Unused

This command restores a previously saved Integral Drive value. The Integral Drive value

that is restored is taken from a buffer internal to the motion controller that will set using

the

Save Integral Drive

command. The Integral Drive will be set to 0 if no previous

Save

Integral Drive

command was issued. The Save/Restore Integral Drive pair can be used to

unwind the integrator while in the middle of a move.
For example, suppose the integral drive is saved while the move is taking place. If during

the move, the axis gets stuck and the integrator winds up, then the integral drive can be

restored after the cause of the stall is fixed to avoid an overshoot.
For alternative ways to unwind the integrator, see the

Set Integral Drive

and

Set Integral

Drive to Null Drive

commands.

Save Null Drive Command

Character: S

Decimal: 83

Hexadecimal: 053

Command Value: Unused

The Save Null Drive command saves the current value of the null so it can be recalled

later with a

Restore Null Drive

command ('R').

Save Integral Drive Command

Character: s (lower case S)

Decimal: 115

Hexadecimal: 073

Command Value: Unused

This command saves the current value of the Integral Drive so it can be recalled later

with a

Restore Integral Drive

command ('r'). For details on the uses of these two

commands, see

Restore Integral Drive

.

Update FLASH Command

Character: U

Decimal: 85

Hexadecimal: 055

Command Value: Data to Save (1=Parameters and Profiles; 2=Event Steps)