MX80S Series Product Manual
25
Parker Hannifin Corporation
EMN Automation
-
Parker
Irwin, Pennsylvania
Total mass = 0.46 kg (Payload mass = 250 grams + Carriage mass = 213 grams)
Application Speed = 100mm/sec w/10mm leadscrew
Available peak force for 3 stack stepper at .1 m/sec = 10 oz
-
in (See Chapter 2,
Force / Speed Curve
)
F=(Torque x 0.393 / Lead (inches)) x efficiency = (10 x 0.393/ (10/25.4)) x .78 = 7.78 lbs = 34.65 N
Maximum Obtainable Deceleration Rate
Thus: F = ma à a = F/m à a = 34.65N / 0.46kg à
75.3 m/sec
2
Maximum permitted is 20 m/sec
2
Now, calculate the
Deceleration Distance
for linear deceleration:
First
…
find the
Deceleration time
:
Ta = Max Velocity / Deceleration Rate
Ta = .10 m/sec / 20.0 m/sec
2
à 0.0050 seconds
Second
…
find the
Deceleration Distance
:
Distance = ((Max Velocity) * (Ta)) / 2
Distance = ((100 mm/sec) * (0.005)) / 2 à
0.25 mm
This means that both the positive and negative limit switch targets must be moved inward by 0.25 mm.
The limit deceleration rate should be set to 20.0 meters/sec
2
. Using the supplied limit flag sheet cut two 0.25
mm long strips from the appropriate white or black (depending on configuration) marked Limit/Home Adjustment
overlay decal and follow the procedure for changing the limits.
Adjusting the Limit Flag Procedure
The following procedure is to be used for adjusting the activation position of the end of travel limits on
the MX80S:
Step 1:
Remove power from the unit and allow time for stage base
and carriage to reach room temperature.
Step 3:
Gently slide the bracket from out from under the carriage.
Step 4a
:
To adjust limits to increase travel
: With a razor, cut and
remove the desired amount of protective sticker and magnet which
equals the amount of desired travel increase.
Step 2:
Remove the limit flag bracket from the MX80S by removing
the button head cap screws (BHCS) that secure the bracket to the
side of the carriage.
Содержание MX80S Series
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