Stepper motor driver
LE4-40, LE12-140 Series
IEF Werner
The LE4-40 is a power output stage for 2 phase stepper motors. It operates on the bipolar constant current principle. This operating mode enables your stepper motor to operate quietly but with a highly efficient output stage.
Advantages:
Constant current control in chopper operation
Current adjustment via rotary switch
Short-circuit proof
Stand-by and fault display
Reversing controller
Reduction of current at standstill
Temperature monitoring
Switch-over to different step resolutions
(200, 400, 500, 800, 1000, 1600 Steps)
Opto-uncoupled Input signals
Potential-free Stand-by contact
LEDs for quickly error diagnosis
Reset or zero function
