ATTACHMENT A: DETAILED COMMANDS

Read Speed/Status (81)

Command:

Read Speed/Status

Description:

This command tells the unit to respond with it’s current commanded speed, actual speed, load value, & status.

CMD = [81]

UID = [01] - [FF]

Message:

[DLE][STX][UID][CMD][DLE][ETX][CSM]

Response:

[DLE][STX][UID][ACK][CS4][CS3][CS2][CS1][AS4][AS3][AS2]

[AS1][LOD][ST2][ST1][DLE][ETX][CSM]

Definitions:

[CS4]..[CS1] - Commanded speed, unsigned long integer [AS4]..[AS1] - Actual speed, unsigned long integer

[LOD]

- Load percent

[ST2]..[ST1] - UNIT Status. ST1 is fault codes.

[ST2] - 7 6 5 4 3 2 1 0

Local/Remote (0,1) Master/slave (0,1) At Speed (1)

FWD Direction Set (1) Fault Detected (1) Drive Enabled (1) Microprocessor Zero Speed

[ST1] - 7 6 5 4 3 2 1 0

Bus not charged (1) IOC (1)

Stall (1)

Inverse Time OL (1)

Heatsink Thermal OT

Commutation Fault Over Volt

Under Volt

[ERR]- Reported error

[86]- Illegal command number.

Set Speed (82)

Command: Set Speed

Description:

This command tells the unit to set the new

commanded speed to the value but not to execute it until told to do so by #83.

CMD = [82]

UID = [01] - [FF]

Message:

[DLE][STX][UID][CMD][CS4][CS3]

[CS2][CS1][DLE][ETX][CSM]

Response:

If no errors

[DLE][STX][UID][ACK][DLE][ETX][CSM] else

[DLE][STX][UID][NAK][ERR][DLE][ETX][CSM]

Definitions:

[CS4]..[CS1] - Commanded speed, unsigned

long integer

 

[ERR]

- Reported Error.

[80]- Unit not in remote mode

[81]- Illegal speed value

[86] - Illegal command number

Execute Speed (83)

Command: Execute Speed

Description:

This command tells the unit to execute the new commanded speed set in 82.

CMD = [83]

UID = [00] - [FF]

Page 48

DFS-1 Manual

Revised 7/95

 

 

POWERTEC Ind. Corp.©

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PowerTec DFS-1 manual Dlestxuidcmddleetxcsm, DLESTXUIDCMDCS4CS3 CS2CS1DLEETXCSM, Dlestxuidnakerrdleetxcsm, Err