Thread: TB6560 auto current reduction
-
08-12-2011 #1
The datasheet for these chips does not make it clear. On these cheap boards there are 2 switches connected to the TQ1 and TQ2 pins of the stepper chip. The datasheet states that if these pins are driven high (5v) then the current to the motor is 20% of the value set by the resistor. What is not clear is whether this is automatic or always, ie if they are driven high is the current 100% when moving and 20% when not moving or do I have to drive these pins high when I stop sending pulses to the stepper?
-
08-12-2011 #2
Going by the block diagram it sets the current permanently, not just when stationary.
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Auto zero Z axis problems
By Jumbo in forum Probing, Digitizing & ScaningReplies: 26Last Post: 23-10-2016, 03:00 PM -
Screw Dive Size Reduction ??
By manofgresley in forum Gantry/Router Machines & BuildingReplies: 0Last Post: 04-09-2013, 05:34 PM -
Current Set Resistors.
By NzOldun in forum Motor Drivers & ControllersReplies: 1Last Post: 20-06-2011, 08:38 AM -
Motor size 23' and 2/1 reduction for Z axe on SX3 retrofit.
By A2P in forum Linear & Rotary MotionReplies: 0Last Post: 15-09-2010, 05:14 PM -
G540 Current set resistors
By blueseidboy in forum Motor Drivers & ControllersReplies: 3Last Post: 23-08-2010, 02:21 PM
Bookmarks