Pulses output PLC FX1N to servo amplifier

[JAVI]

Hello everybody. I have a problem with pulses output of a PLC FX1N-60MT-ESS. With this PLC, I control a servo amplifier MR-J2S-A. When I work to superior frequencies to 30 kHZ, the sign of pulses of the PLC is distorted, showing a sign in an oscilloscope just as it is shown in the figure 1. The electronic circuit is the one that is shown in the figure 2. This sign like it will affect the operation of the servo?. Like I can improve the sign?. Thank your help and time. : Edited May 16, 2006 by JAVI

[larry818]

That's actually normal. Your servo should not mind.