Delta MMC120 User Manual

Page 82

Set Mode Command

Character: M

Decimal: 77

Hexadecimal: 04D

Command Value: New MODE value

This command sets the

MODE

to the value in the

COMMAND VALUE

field.

Set Null Drive Command

Character: N

Decimal: 78

Hexadecimal: 04E

Command Value: Millivolts of Drive

The 'N' command sets the

Null Drive

to the value in the

COMMAND VALUE

field.

Set Null Drive to Integral Drive Command

Character: n

Decimal: 110

Hexadecimal: 06E

Command Value: Unused

This command sets the

Null Drive

to the current Integral Drive value.

Why Bother?

It is important that the Null Drive be set because it is used in

open loop mode

and

hard

stops

. The ‘n’ command should only be issued when the axis is

in position

and its speed

is zero.

Open Loop Command

Character: O

Decimal: 79

Hexadecimal: 04F

Command Value: Millivolts of Drive