Delta MMC120 - Manual (Page 77)

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• Decrease the maximum SPEED value.
The command acceleration is invalid
This parameter error indicates that an invalid ACCELERATION was given for an Open
Loop command. The ACCELERATION must be less than 20000 millivolts per
millisecond in Acceleration Mode 1, and greater than zero in Acceleration Mode 3.
The command deceleration is invalid
This parameter error indicates that an invalid DECELERATION was given for an Open
Loop command. The DECELERATION must be less than 20000 millivolts per
millisecond in Deceleration Mode 1, and greater than zero in Deceleration Mode 3.
Both sync bits cannot be set in the "Mode" word
There are two Sync bits in the MODE word. Only one or neither can be set at a time.
This parameter error is generated if both are set.
One or more synced axes are uninitialized
This error indicates that at least one of the axes selected to participate in the synchronized
move has not been initialized. The axis that is not initialized will be marked with the
Parameter Error bit and will not have the Parameters Initialized bit set in the STATUS
word. To initialize the parameters on this axis, issue a Set Parameters command.
Incompatible sync mode words
This error indicates that the low eight bits of the mode words do not match between a set
of synchronized axes. These bits are required to match to ensure that the same type of
move is executed between all of the synchronized axes. Decide which MODE bits you
would like to use, and use the same mode bits for all synchronized axes. Because only
the low eight bits are required to match, the Graph Disable bit can be different between
synchronized axes.
"Event Step Edit" indices are invalid
The Programmable Controller sets the beginning and ending step numbers to edit with
the E0 and E1 Event Step Edit commands. When the E3 Event Step Edit command is
issued—which actually performs the step table modifications—the beginning and ending
step numbers are checked. Both must hold valid step numbers (between 0 and 255,
inclusive), and the ending step number must be greater than or equal to the starting step
number.