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TMCM-1181 参数 Datasheet PDF下载

TMCM-1181图片预览
型号: TMCM-1181
PDF下载: 下载PDF文件 查看货源
内容描述: [1-axis Stepper Controller / Driver up to 6.5 RMS / 24V DC USB, RS485]
分类和应用:
文件页数/大小: 18 页 / 530 K
品牌: TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
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TMCM-1181 V3.0 Hardware Manual (Rev. 0.90 / 2015-JUL-10)  
4
TRINAMICS UNIQUE FEATURES – EASY TO USE WITH TMCL  
stallGuard2™ stallGuard2 is a high-precision sensorless load measurement using the back EMF on the  
coils. It can be used for stall detection as well as other uses at loads below those which  
stall the motor. The stallGuard2 measurement value changes linearly over a wide range  
of load, velocity, and current settings. At maximum motor load, the value goes to zero or  
near to zero. This is the most energy-efficient point of operation for the motor.  
Load  
[Nm]  
stallGuard2  
Initial stallGuard2  
(SG) value: 100%  
Max. load  
stallGuard2 (SG) value: 0  
Maximum load reached.  
Motor close to stall.  
Motor stalls  
Figure 1.1 stallGuard2 load measurement SG as a function of load  
coolStep™  
coolStep is a load-adaptive automatic current scaling based on the load measurement via  
stallGuard2 adapting the required current to the load. Energy consumption can be  
reduced by as much as 75%. coolStep allows substantial energy savings, especially for  
motors which see varying loads or operate at a high duty cycle. Because a stepper motor  
application needs to work with a torque reserve of 30% to 50%, even a constant-load  
application allows significant energy savings because coolStep automatically enables  
torque reserve when required. Reducing power consumption keeps the system cooler,  
increases motor life, and allows reducing cost.  
0,9  
Efficiency with coolStep  
0,8  
0,7  
0,6  
0,5  
0,4  
0,3  
0,2  
0,1  
0
Efficiency with 50% torque reserve  
Efficiency  
0
50  
100  
150  
200  
250  
300  
350  
Velocity [RPM]  
Figure 1.2 Energy efficiency example with coolStep  
www.trinamic.com  
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