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Service manual
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Mini Dc
2.5 Current limitation TPRC (3ac)
MINI DC
CNC
2.6 Ausiliary power /-9,8V (4ac and 5ac)
MINI DC
Input and output signals
With an external potentiometer connected from GND and TPRC input, you have a limitation of output
current (from zero to max. size) drive's.
External potentiometer (47K-100kOhm)
1-10 TURNS
The speed loop remains active and uses the input reference /-VEL.
Connect between terminal and GND terminal TPRC a resistor 1/4W or 1/8W. (The figure is used a
potentiometer). With external resistance tends to zero ohms, the output current tends to zero. Increasing
the ohmic value of resistance, the value of current supplied increases. With 47K of the current is
limited to 50% on the Maximum size. The loop motor speed remains active.
In the terminals 5ac (+9.8V) and 6ac (-9.8V) are available auxiliary supplies to power the
potentiometer reference speed. In the attached drawing below is also added a switch that allows
the reversal of the rotation motor speed .
The current capacity of the output is max + /-4mA
9.8V can also be used to enable the converter
Potentiometer (5K-10KOhm)
