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PD57/60-1060 / TMCM-1060 TMCL™ Firmware Manual (V1.04 / 2011-AUG-29)
110
Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
Number
Axis parameter
Description
I
183
smartEnergy slow run current
Sets the motor current which is used below the threshold
speed. Please adjust the threshold speed with axis parameter
182.
SG
170
smartEnergy hysteresis
Sets the distance between the lower and the upper threshold
for stallGuard2™ reading. Above the upper threshold the motor
current becomes decreased.
SG
181
stop on stall
Below this speed motor will not be stopped. Above this speed
motor will stop in case stallGuard2™ load value reaches zero.
V
182
smartEnergy threshold speed
Above this speed coolStep™ becomes enabled.
T
214
power down delay
Standstill period before the current is changed down to standby
current. The standard value is 200 (value equates 2000msec).
For further information about the coolStep™ feature please refer to the TMC262 Datasheet.
8.5
Velocity calculation
The axis parameters listed below are related to the speed of the motor. The table is an excerpt of the
complete table of axis parameters in this chapter.
The unit of the velocity
<value>
is pulse per second (pps). For calculating the speed it is necessary to set the
microstep resolution of the driver (axis parameter 140) first. Further, the fullsteps of the motor must be
given (QSH5718 and QSH6018 have 200 fullsteps/rotation).
Now, calculate as follows:
Number Axis Parameter Description
Unit
2
target (next)
speed
The desired speed in velocity mode (see
ramp mode, no. 128). In position mode,
this parameter is set automatically: to the
maximum speed during acceleration, and
to zero during deceleration and rest.
-268.435.455…
+268.435.454
[pps]
4
maximum
positioning
speed
Maximum feasible positioning speed. Has
to be adapted to motor and application
0… +268.435.454
[pps]
181
stop on stall
Below this speed motor will not be
stopped. Above this speed motor will
stop in case stallGuard2™ load value
reaches zero.
0… +268.435.454
[pps]
182
smartEnergy
threshold speed
Above this speed coolStep™ will be
enabled.
0… +268.435.454
[pps]