Motion Control Units
Product Specifications
10
Comparison with Earlier MC Unit Model
The following table shows the points of difference between the CS1W-MC221/MC421 and C200H-MC221 MC Units.
Item
CS1W-MC221/MC421
C200H-MC221
Number of control axes
2 or 4 axes
2 axes only
Binary indications
All binary (present position, program
number, block number, M code, override,
error code)
BCD
Encoder response frequency
500 kp/s (before multiplication)
250 kp/s (before multiplication)
Encoder pulse ratio
1, 2, or 4 times
4 times only
Program capacity
2,000 blocks
800 blocks
Acceleration/deceleration time
0 to 100.000 s
0 to 9.999 s
Speed reference range
1 pps to 2,000 kp/s
1 pps to 1,000 kp/s
Start time
2-axis Units: 8 ms max.
4-axis Units: 12 ms max.
2-axis Units: 12 ms max.
Note: Two-axis MC Unit:
This function applies to the X axis when a 2-axis, 1-task configuration is used.
Four-axis MC Unit:
This function applies to the X axis when a 4-axis, 1-task configuration is used.
Optional inputs
Optional No. 0 to 15: Inputs from CPU Unit
Optional No. 16 to 19: General inputs 1 to 4
Optional No. 0 to 4: Inputs from CPU Unit
Optional No. 5 and 6: General inputs 1 and
2
General outputs, brake signal outputs
Four output signals are provided, and can
be selected.
No output signals are provided.
MPG signals
500 kp/s max. (before pulse ratio of 1, 2, or
4)
Y axis instead of MPG
Circular interpolation (G02, G03)
Multiturn circular interpolation can be set.
Within one turn only.
Helical circular interpolation
With 4-axis Units, 2-axis circular
interpolation on a plane + 1-axis feed
control is possible.
Not supported.
Traverse command (G32)
A 2-axis traverse operation is available,
with a traverse time of 4 ms max.
Not supported.
Unlimited Feed Mode
Unlimited feeding can be either specified or
not specified for an axis. (The software limit
is ignored.)
Cannot be specified.
Present position display for unlimited
feeding
When unlimited feeding is specified for an
axis, the software limit is ignored. The
present position refresh range can be set.
Not supported.
Interrupt feeding (G31)
Positioning is possible even without
any interrupt signal.
Speed control remains in effect when
there is no interrupt signal.
Override
The feed rate can be changed during
G00, G01, G02, G03, G26, G27, G30,
G31, and G32 operations (except for
pass operations).
The feed rate cannot be changed
during operation.
Backlash setting range
0 to 10,000 pulses
0 to 999 pulses
In-position setting range
0 to 10,000 pulses
0 to 999 pulses
Zone setting
Conditions for using zones:
Use only when origin is determined, or
regardless of whether or not origin is
determined.
The initial setting is for zones to be
used only when the origin is
established.
Use regardless of whether or not the
origin is established.
Origin search
Can be executed even when an
absolute encoder is used.
Parameter can be set to shorten origin
search time.
Either deceleration stop or
accumulated pulse stop can be
selected for when CW or CCW limit is
detected.
Cannot be executed when an absolute
encoder is used.
Not possible to select deceleration
stop or accumulated pulse stop for
when CW or CCW limit is detected.
Forced origin
Present position can be forcibly set to
0, and established as the origin. (In an
absolute encoder system, only the MC
Unit’s present position is set to 0.)
The present position is set to 0 by the
present position preset function.
