![Trinamic PD57-1060 Firmware Manual Download Page 29](http://html1.mh-extra.com/html/trinamic/pd57-1060/pd57-1060_firmware-manual_1163104029.webp)
PD57/60-1060 / TMCM-1060 TMCL™ Firmware Manual (V1.04 / 2011-AUG-29)
29
Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
Number Axis Parameter
Description
Range [Unit]
162
chopper blank
time
Selects the comparator
blank time
. This time
needs to safely cover the switching event and
the duration of the ringing on the sense
resistor. For low current drivers, a setting of 1
or 2 is good. For higher current applications
like the TMCM-1060 a setting of 2 or 3 will be
required.
0… 3
163
chopper mode
Selection of the chopper mode:
0 – spread cycle
1 – classic const. off time
0/1
164
chopper
hysteresis
decrement
Hysteresis decrement setting. This setting
determines the slope of the hysteresis during
on time and during fast decay time.
0 – fast decrement
3 – very slow decrement
0… 3
165
chopper
hysteresis end
Hysteresis end setting. Sets the hysteresis end
value after a number of decrements.
Decrement interval time is controlled by axis
parameter 164.
-3… -1 negative hysteresis end setting
0 zero hysteresis end setting
1… 12 positive hysteresis end setting
-3… 12
166
chopper
hysteresis start
Hysteresis start setting. Please remark, that
this value is an offset to the hysteresis end
value.
0… 8
167
chopper off time The off time setting controls the minimum
chopper frequency. An off time within the
range of 5µs to 20µs will fit.
Off time setting for constant t
OFF
chopper:
N
CLK
= 12 + 32*t
OFF
(Minimum is 64 clocks)
Setting this parameter to zero completely
disables all driver transistors and the motor
can free-wheel.
0 / 2… 15
168
smartEnergy
current minimum
(SEIMIN)
Sets the lower motor current limit for
coolStep™ operation by scaling the CS
(Current Scale, see axis parameter 6) value.
minimum motor current:
0 – 1/2 of CS
1 – 1/4 of CS
0/1
169
smartEnergy
current down
step
Sets the number of stallGuard2™ readings
above the upper threshold necessary for each
current decrement of the motor current.
Number of stallGuard2™ measurements per
decrement:
Scaling: 0… 3: 32, 8, 2, 1
0: slow decrement
3: fast decrement
0… 3
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.
0… 15
Hysteresis:
(smartEnergy hysteresis value + 1) * 32