CENTENT MOTION CONTROLLER
FLT X, Y (pin 16, pin 3)
An active FLT input stops the step motor immediately. Its purpose is to act
as an emergency stop. When a Fault input is sensed, operation ceases
immediately. In IMMEDIATE MODE (M1), all pending instructions are
canceled. In OPERATE MODE (M3) the program is reset.
If the FLT input activates while the motor is running, the step pulses to the
motor drive are abruptly terminated. Since there is no deceleration, it is
likely that the motor will lose synchronization if the speed is sufficiently
high.
To clear the Fault condition, the FLT input must go inactive and a new
instruction issued. If the system employs a Home switch and motor
position relative to the Home switch is important, the next instruction
should be XH (or YH).
When a Fault is sensed a KILL command is issued on the 'B' serial port of
the CN0170. This signals the next CN0170 (in a daisy-chained system) to
stop. The command will be passed down the entire chain by the CN0170s,
ensuring all operation ceases. To route the KILL command back to the
host, connect Serial connector pin 14 to pin 16 and pin 13 to pin 19 on the
last CN0170 unit in the chain. In this configuration, all commands issued
to the CN0170s will echo back to the host.
BSY X, Y: (pin 15, pin 2)
The BSY input, when used in conjunction with the STB output,
synchronizes the CN0170 Motion Controller to an external process. See the
STB X, Y section for a complete description.
The BSY input, when active, prevents the execution of a pending HOME,
Point to Point, Linear Interpolation or Circular Interpolation instruction.
The BSY input is sampled every 3.9 milliseconds while it is active and a
move is pending. Once it goes inactive, the move begins and the BSY input
is ignored thereafter. The BSY input is ignored for all other motion
instructions.
IN 1,2: (pin 14, pin 1)
The IN inputs are user-defined inputs. The user may read the state of the
inputs via the user's computer, independent of the ongoing motion control
process. The IN inputs are considered on if the input is at a logical '0' or
grounded state. The indicator LED is illuminated for an 'on' input. The IN
inputs are considered off if the input is left open or driven with a 5 volt
signal. The indicator LED is unlit for the off state. The IN inputs are
sampled 256 times a second. Input states lasting less than 3.9
milliseconds may go unrecorded.
The IN 1 input may be designated as a GO instruction for the program
residing in the CN0170. See the SOFTWARE MANUAL, CN0170 TWO AXIS
MOTION CONTROLLER for details.
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Содержание CN0170
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