IAI America PCON-CA - Manual (Page 137)

Chapter 3 Operation
POWER CON
PCON-CA/CFA
129
3.3 Pulse Train Control Mode (for Pulse Train Type)
This controller can switch over the mode between positioner mode and pulse train control
mode with the parameters. In Pulse Train Mode, the actuator can be operated by the pulse train
output of the host controller (PLC) positioning control function. This operation mode is not to be
changed after the system is complete to be established or during an operation.
Caution: • In Pulse Train Control Mode, the operation is performed corresponding to the
input pulse.
Input Pulse Value Ÿ Moving distance
Input pulse frequency Ÿ Velocity
Change in Input Pulse Frequency Ÿ Velocity change and acceleration/deceleration
Do not use the actuator above the specifications for the commands of the
movement amount, acceleration and deceleration from the host controller (PLC).
Doing so may cause an abnormal noise or malfunction.
„ 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.
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.