User manual
PDx-113-57/60-SE / TMCM-113-57/60-SE Firmware Manual (V1.10 / 2009-OCT-28) 28
Copyright © 2009, TRINAMIC Motion Control GmbH & Co. KG
Please use the TMCL-IDE axis parameter calculation tool for getting best values.
Example:
Set the absolute maximum current of motor to 200mA
Mnemonic: SAP 6, 0, 200
Binary:
Byte Index
0
1
2
3
4
5
6
7
8
Function
Target-
address
Instruction
Number
Type
Motor/
Bank
Operand
Byte3
Operand
Byte2
Operand
Byte1
Operand
Byte0
Checksum
Value (hex)
$01
$05
$06
$00
$00
$00
$00
$c8
$d5
Number
Axis Parameter
Description
Range
203
mixed decay threshold
If the actual velocity is above this threshold, mixed
decay will be used. This can also be set to –1 which
turns on mixed decay permanently also in the rising
part of the microstep wave. This can be used to fix
microstep errors.
0..2048
or -1
204
freewheeling
Time after which the power to the motor will be
cut when its velocity has reached zero
0..65535
0 = never
205
Stall Detection Threshold
Stall detection threshold. Only usable on modules
equipped with TMC246 or TMC249 motor drivers. Set
it to 0 for no stall detection or to a value between
1 (low threshold) and 7 (high threshold). The motor
will be stopped if the load value exceeds the stall
detection threshold. Switch off mixed decay to get
usable results.
0..7
209
Encoder Position
Position of motor axis within one rotation
0..255
210
encoder prescaler
Prescaler for the encoder (since firmware version
3.38). For more information refer to 9.2 please.
211
Fullstep Threshold
When exceeding this speed the driver will switch to
real full step mode. To disable this feature set this
parameter to zero or to a value greater than 2047.
Setting a full step threshold allows higher motor
torque of the motor at higher velocity. When
experimenting with this in a given application, try
to reduce the motor current in order to be able to
reach a higher motor velocity!
0..2048
214
power down delay
Standstill period before the current is changed
down to standby current. The standard value is
200msec.
from
10msec
on