Applied Motion PDO5580 - Manual (Page 13)

-12-
Joystick Mode
In this mode, speed and direction are determined by the voltage applied to the WPR
(wiper) terminal. 2.5 volts is “stopped” (no speed). Increasing the WPR voltage
toward 5 volts results in forward motion: speed increases with voltage. Decreasing
the WPR voltage from 2.5 toward 0 results in reverse motion, with speed increasing
as voltage decreases. In joystick mode, the PDO 5580 operates at 12800 steps/rev.
The maximum speed is determined by two things: the state of the SPEED input and
the HI SPEED and LO SPEED trimpots. When the SPEED input is ON, the speed
range of the joystick can be adjusted with the LO SPEED pot, up to 5 rev/sec (300
rpm) When the SPEED input is OFF (or open), the joystick speed range is adjusted
with the HI SPEED pot, up to 25 rev/sec (1500 rpm). Turning the pots clockwise
increases the speed.
In joystick mode, limit switches can be connected to the PDO 5580 to prevent
motion outside of defined limits. The forward limit should be connected to the STEP
input and the reverse limit should be connected to the DIR input. When the forward
limit is ON, the motor will not move forward (that is, when the joystick voltage is
between 2.5 and 5 volts.) When the reverse limit is ON, the motor will not move
when the joystick is in the 0 to 2.5 volt range. If you don’t need limits, you can leave
the STEP and DIR inputs unconnected.
5k Ω
joystick
joystick "fire" button
fwd
rev
PDO 5580
SPEED+
DIR-
STEP-
SPEED-
CCW
WPR
CW
+
5-12
VDC
SUPPLY
-
DIR+
STEP+
rev limit switch
fwd limit switch
-13-
Oscillator Mode
In oscillator mode, the PDO 5580 uses the direction set by the DIR input. Off, or
open, gives clockwise motion, if the motor is wired according to pages 6 and 7.
Motor speed and the function of the STEP input can be determined from the follow-
ing table. In oscillator mode, the PDO 5580 operates at 12800 steps/rev.
Speed vs Input Voltage
Joystick Mode, SPEED input off (open)
HI SPEED pot at maximum
0 1 2 3 4 5
-25
-20
-15
-10
-5
0
5
10
15
20
25
volts volts
speed (rev/sec)
SPEED switches speed set when STEP when STEP
input 1 & 2 by goes ON goes OFF
ON accel to speed instant stop
ON accel to speed instant stop
OFF/open accel to speed decel to stop
OFF/open accel to speed decel to stop
ext speed
joystick
ext speed
joystick
ext speed
joystick
ext speed
joystick
LO SPEED
LO SPEED
HI SPEED
HI SPEED
WPR input
trimmed by