TMCM-3214, TMCM-3215 Hardware Manual (V0.90 / 2016-JUN-27)
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6 Motor driver current
The stepper motor driver section of the TMCM-3214 + TMCM-3215 operates current controlled. The driver current
may be programmed in software with 236 effective scaling steps in hardware up-to 6.5A RMS / 9A peak max.
motor coil current.
Motor current measured for one phase with max. current settings (100% e.g. “SAP 179, 0, 0” and “SAP 6, 0, 235”)
and 256 microsteps:
CH1 (yellow): motor current [100mV / A]
Motor current
setting in
In TMCL axis parameter 6 (motor run current) and 7 (motor standby current) can be used
for motor current setting:
software (TMC)
SAP 6, 0, <value> // set run current
SAP 7, 0, <value> // set standby current
For <value>numbers between 0 (minimum) and 235 (maximum) are supported. Motor
current is scaled linearly up-to 6.5A RMS / 9A peak.
(read-out value with GAP instead of SAP. Please see separate TMCM-3214 / TMCM-3215
firmware / software manual for further information)
Range setting
in software
(TMCL)
TMCL axis parameter 179 (Vsense) will set the current range:
SAP 179, 0, <value> // = 0 high current range
//
up-to 6.5A RMS/9A peak
// = 1 low current range
//
up-to 3.7A RMS / 5.2A peak
For <value>either 0 (high current range) or 1 (low current range) is supported.
(read-out value with GAP instead of SAP.
Copyright © 2016, TRINAMIC Motion Control GmbH & Co. KG
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
