Servos don't move in a continuous way just step by step

Hi,
we got the SSC-32 card 1 week ago. The card is fed up properly and the “on” led is switched on. We have a pan-tilt system to get moved by two fast servos (HITEC HS-645MG). The point is when we command for instance servo 0 to move by:
#0 P2200 T9000 , the servo only perform a movement in a time less than 1 second as a beat. The same thing for the other servo in pin3. We checked out servos were fed up with 5.5 volts with the voltmeter. Does anybody know what’s wrong?

Thanks in advance.

Are you sending that command as the first command? If so, it isn’t going to work. This is because the SSC-32 doesn’t know where the servos are on power up, so the first command ignores T and S commands. Try sending #0 P1500 or similar first, THEN try to use a T command.

Let me know if this helps.

We already did that first step. If we command for instance:

#0 P1500 and then #0 P2225 T9000 the 0 servo should start moving during 9 seconds until it reaches the new position as far as i know. However, the servo just moves one time and stops immediately. Do you know what’s going on?

Thanks.

Works for me with an SSC-32 hooked up to 1 servo, using Lynxterm. So the question is how are you issuing the commands?

Also what is your power supply? You say you measure 5.5V. Are you using the same power connected to VL? If so my strong guess is as soon as you issue the command, the servo starts, the voltage drops and the SSC-32 resets… Try a 6V battery or disconnect VS from VL and connect a 9v Battery…

Kurt

We tried both possibilities unsuccessfully.First VS1 was powered up with 6.0 Volts and secondly we removed out the jumper we powered up VL with 9 volts and VS1 with 6 volts independently, with the same results. However we noticed this time the movements were wider than the last time. Moreover, we checked there isn’t any peak of intensity of demand when we issue a command.It’s always consuming 45mA.Do you have any other idea??

How about you post up a nice photograph of the guy so we can see what’s going on?