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6200 Installation Guide
End-of-Travel and Home Limit Inputs
N O T E S
• Motion will not occur on an axis until you do one of the following:
- Install end-of-travel (
CW
&
CCW
) limit switches.
- Disable the limits with the
LHØ
command (recommended only if load is not coupled).
- Change the active level of the limits with the
LHLVL
command.
• Refer to the
Basic Operation Setup chapter in the 6000 Series Programmer’s Guide for
in-depth discussions about using end-of-travel limits and homing.
CONNECTIONS & INTERNAL SCHEMATICS
Internal Schematic
CW & CCW connected to GND
(normally-closed switches).
Mount each switch such that the load forces it to open before it
reaches the physical travel limit (leave enough room for the load to
stop). When the load opens the switch, the axis stops at the decel
value set with the
LHAD
command. The motor will not be able to
move in that same direction until you execute a move in the opposite
direction and clear the limit by closing the switch (or you can disable
the limits with the
LHØ
command, but this is recommended only if the
motor is not coupled to the load). The active level (default is active
low) can be changed with the
LHLVL
command.
HOM connected to GND
(normally-open switch).
The home limit input is used during a homing move, which is initiated
with the
HOM
command. After initiating the homing move, the
controller waits for the home switch to close, indicating that the load
has reached the “home” reference position. The active level (default
is active low) can be changed with the
HOMLVL
command. You can
also use an encoder’s Z channel pulse, in conjunction with the home
switch, to determine the home position (this feature is enabled with
the
HOMZ1
command).
Chassis
Ground
ISO GND
All limit inputs share the
same circuit design.
LIM 1/2 Connector
SHLD
GND
2HOM
2CCW
2CW
GND
1HOM
1CCW
1CW
6.8 K
Ω
47 K
Ω
74HCTxx
+5VDC
9
1
PIN OUTS & SPECIFICATIONS
(LIM 1/2 Connector)
Pin Name
In/Out
Description
Specification for all limit inputs
1
2
3
4
5
6
7
8
9
SHLD
GND
2HOM
2CCW
2CW
GND
1HOM
1CCW
1CW
—
—
IN
IN
IN
—
IN
IN
IN
Chassis ground (earth).
Isolated ground.
Home limit input, axis 2.
Negative-direction end-of-travel limit input, axis 2.
Positive-direction end-of-travel limit input, axis 2.
Isolated ground.
Home limit input, axis 1.
Negative-direction end-of-travel limit input, axis 1.
Positive-direction end-of-travel limit input, axis 1.
• TTL compatible switching levels (Low
≤
0.4V, High
≥
2.4V).
Internal 6.8 K
Ω
pull-up resistor to +5V
.
Voltage range = 0-24V.
• Active level for HOM is set with
HOMLVL
(default is active low,
requires n.o. switch).
• Active level for CW & CCW is set with
LHLVL
(default is active
low, requires n.c. switch).
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Содержание Compumotor 6200
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