IAI America SCON-CA - Manual (Page 161)

Chapter 3 Operation
151
� Main Functions
Function Name Name
1 Dedicated home return signal When this function (signal) is used, home return (Note 1) can be
performed without using a complex sequence or an external
sensor, etc.
2 Brake control function Since the controller controls the brake, there is no need to
program a separate sequence.
The electromagnetic brake power is supplied to the controller
from a power supply different from the main power. Accordingly,
the electromagnetic brake can be released freely after the main
power has been cut OFF.
3 Torque limiting function The torque can be limited (a desired limit can be set by a
parameter) using an external signal. When the torque reaches
the specified level, a signal will be output. This function (signal)
permits pressing and press fitting operations.
4 Position-command primary filter
function
Soft start and stop can be achieved even when the actuator is
operated in the command-pulse input mode where acceleration
and deceleration are not considered.
5 Position detection feedback
function
Position detection data is output using differential pulse trains.
The current position can be read in real time (Note 2) from the host
controller.
Note 1 In the pulse train control mode, even the actuator of absolute specification needs home return
because it operates as that of incremental specification.
Note 2 Up to 2.5Mpps can be output in real time.
3.3.1 I/O Signal Controls
The input signals of this controller incorporate an input time constant to prevent malfunction
due to chattering, noise, etc. Make sure to input the signals continuously for 6ms or more.
(Note) Command pulse train inputs (PP•/PP, NP•/NP) do not have input time constants. Also, it
is necessary to input 16ms or more for CSTP Signal.
� �
Caution: To use I/O signals, be sure to tilt the operation mode setting switch on the front
panel of the controller to the “AUTO” position.
Identify
Does not identify
Input Signal
Input Signal
6ms