User manual

Stand: Februar 2011 Z 385 engl
2. General information / Operation
The series GS 24 S/xx-360 transistor speed controllers are inexpensive devices with
compact dimensions of 72 x 100 mm for the stepless speed control of any DC motors
at low voltages and motor currents of up to 10 A. The input voltage range is 20 to
36 V DC makes a battery operation possible, e.g. from an on-board electrical supply
system or through series SNT 24/xx mains adapters connected upstream. The
stepless speed adjustment can take place through either an internal/external
potentiometer (10kOhm) or through an external reference voltage 0....10 V DC (pre-
selection via jumper set-point). An internal potentiometer acts as an overload
protection by providing a continuously variable motor current limitation.
The possibility to change the rotating direction through a relay is available as an
option using an additional EPH 393 type circuit board. Rotation in the left or right
direction can be pre-selected during standstill via a 12 to 48 V DC control signal.
2.1. Characteristics
● The high pulse frequency of 18 kHz allows for a quiet operation.
● Form factor F < 1.05 guarantees reduced motor heating and high MD reserves.
● Adjustable rotation speed through 0..10 V interface or potentiometer (10kOhm)
(external or internal).
● Enable-input for output stage activation, internal/external (pre-selection
through jumper RF).
● Overload protection of motor or drive through stepless current limitation.