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www.microphase.eu
Service Manual
Classic
Current output limitation
With an external potentiometer connected from GND and REQ input, you have a limitation of output
current (from zero to max. size) drive's.
External potentiometer (470K-1M
Ohm) 3-10 TURNS
The speed loop remains active and uses the input reference /-VEL.
Connect between terminal and GND terminal REQ a resistor 1/4W or 1/8W. (The figure is used a
potentiometer connected to the rheostat). 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.
2.3
Signal common ground
(M1 signal terminal pin 3)
Signal Common Ground. Corrisponds to power supply’s negative GND input.
DRIVE
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