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Page 48
DFS-1 Manual Revised 7/95
POWERTEC Ind. Corp.©
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]