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Speed, Command value – Delta MMC120 User Manual

Page 105

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105

This parameter is the same as

ACCELERATION

except it specifies the deceleration

ramp length or deceleration rate.

SPEED

Default: 1000

Range: 0 to 65535

The SPEED parameter sets the constant speed to be achieved after acceleration. SPEED

is expressed in position units/second. If the

SCALE

is set so one position unit equals

0.001", a speed of 25 inches per second is expressed as 25000.

NOTE:When using Acceleration/Deceleration Mode 2, changing the SPEED without

changing the

ACCELERATION

and

DECELERATION

distances will change

the acceleration and deceleration rates.

NOTE:If the SPEED is set to zero, the axis will not move.

COMMAND VALUE

Range: Depends on Command

The COMMAND VALUE field is multipurpose. Usually it is used with the

'G' command

to specify the position where the axis is to move. When used this way, the value is

bounds-checked by the Motion Control Module using the

EXTEND LIMIT

and

RETRACT LIMIT

and is then used as the

COMMAND POSITION

value.

Here is the complete list of

commands

that use this field:

For this command:

COMMAND VALUE is:

COMMAND VALUE Range:

'A' (Change ACCEL)

Acceleration value

0 to 65535

'D' (Change DECEL)

Deceleration value

0 to 65535

'E' (Start Events)

Event number

0 to 255

'G' (Go to Position)

Requested Position

Valid 16-bit Position

'I' (Set Integral Drive)

Integral Drive value

-10000 to 10000

'J' (Go Relative)

Relative Position

-32768 to 32767

'M' (Set Mode)

Mode

0 to 0FFFFh

'N' (Set Null Drive)

New Null value

-2000 to 2000

'O' (Open Loop

Output)

Requested Millivolts of Drive -12000 to 12000

'V' (Set Speed)

Speed

0 to 65535