Applied Motion PDO5580 - Manual (Page 11)

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200
STEPS/REV
(FULL)
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
MICROSTEP RESOLUTION
Selecting Microstep Resolution
400
STEPS/REV
(HALF)
1000
STEPS/REV
(1/5)
2000
STEPS/REV
(1/10)
5000
STEPS/REV
(1/25)
10000
STEPS/REV
(1/50)
12800
STEPS/REV
(1/64)
18000
STEPS/REV
(.02
°
)
20000
STEPS/REV
(1/100)
21600
STEPS/REV
(1 arc min)
25000
STEPS/REV
(1/125)
25400
STEPS/REV
(1/127)
25600
STEPS/REV
(1/128)
36000
STEPS/REV
(.01
°
)
50000
STEPS/REV
(1/250)
50800
STEPS/REV
(1/254)
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-14-
There are two speed ranges in oscillator mode. One is the low speed range, which is
activated when the SPEED input is on. The low speed can be set from 0 to 5 rev/sec
(0 - 300 rpm) by adjusting the LO SPEED pot. Turning the pot clockwise increases
the speed.
The high speed setting is used when the SPEED input is off, or open. If switch #2 is
toward the words EXT SPEED, then the high speed is proportional to the voltage
applied to the WPR terminal, and is trimmed by the HI SPEED pot. You can connect
an external 1K - 5K pot to the WPR, CW and CCW terminals, or you can apply a 0 to
5 volt analog signal to the WPR terminal (ground your analog signal to the CCW
pin.) The high speed range is 0 - 25 rev/sec (0 - 1500 rpm.) You can reduce the
range by turning down the HI SPEED pot. For example, if you want the motor to go
750 rpm when the external pot is on maximum, turn the HI SPEED pot down about
half way.
When switch #2 is away from the EXT SPEED label, the high speed is set by the HI
SPEED pot and the WPR input does nothing.
Never apply more than 5 volts DC or less than 0 volts to the WPR pin.
In joystick and oscillator modes, the accel/decel rate is set by the
ACCEL pot.
The range is 1 to 250 rev/sec/sec. Turning the pot clockwise makes the motor start
and stop faster, but if you set it too high the motor may run out of torque and stall.
In nearly all cases, the accel/decel rate you set is respected by the PDO 5580. For
example, if you switch the SPEED input while the motor is moving, the drive will
change speeds smoothly. If you are operating in EXT SPEED mode and make a
sudden change in the voltage to the WPR terminal, the drive accelerates (or deceler-
ates) to the new speed smoothly, according to the accel pot setting.
The only time the drive makes an instant change is when the SPEED input is on and
the STEP input goes off. That is done so that you can stop instantly (and exactly)
from a low speed.