Pacific Scientific 6415 Installation & Hardware Reference Manual page 72

Minimum ramp
50 milliseconds (This restriction only applies with digital
time for step
electronic damping circuit enabled.
rate (Accel/Decel)
Driver state
1. With digital electronic damping circuit enabled, at pulse
generator
transition delay
relative to input
step
2. With digital electronic damping circuit disabled, delay is less
RUN SPEED Control
(Analog Input)
Analog Input
± 10 Vdc
Range
Also controllable with internal or external potentiometers
Analog Input
20 KΩ (differential amp)
Impedance
High Frequency
Range
RUN SPEED
8 KHz to 500 KHz
Control
LOW SPEED
8 KHz to 370 KHz
Control
A - 4
frequencies less than 500 full steps/sec, delay is less than 500
µsec. At frequencies greater than 500 full steps/sec, delay is
less than 270° of the input pulse period.
than 10 µsec at all step frequencies.
6415 Installation and Hardware Reference Manual - Rev E