Fuji Electric ALPHA5 Smart, User Manual

Page: 106 / 636

CHAPTER 2 WIRING
2-58
Description of I/O Signals
2
Positioning data selection: Sequence input signal (Reference value 77)
Positioning data operation and immediate value operation are switched over.
 Function
The positioning data can be switched at an arbitrary timing between the following: positioning
within 15 points with internal positioning data and positioning with immediate value data for
frequent positioning data change.
If the CONT signal is turned on, the positioning data is enabled.
if the CONT signal is turned off, the immediate value data is enabled.
The switching timing is always enabled.
The data is recognized at the rising edge of the START signal.
If the timing is simultaneous, the data after signal change is enabled.

Parameter setting
To assign positioning data selection to a sequence input terminal, enter the corresponding value
(“77”) to the input terminal function setting parameter.
Broadcast cancel: Sequence input signal (Reference value 78)
The command using the broadcasting method via Modbus-RTU communications is canceled.
 Function
The Modbus-RTU protocol can issue queries from the host controller, the master, to all the slave
stations at the same time. For example, if the servo has a five-axis structure (of A, B, C, D, and
E-axes), the servo at all the stations can be started with positioning simultaneously.
On the other hand, the Modbus-RTU protocol cannot perform the broadcast by allocating a group
station no. separately. For example, if the servo has a five-axis structure (of A, B, C, D, and
E-axes), the servo cannot be started with positioning simultaneously by selecting the A-axis and
the B-axis only.
Thus by using this function, the broadcast in a separate group station no. can be performed. The
broadcast enable/disable status can be switched using the broadcast cancel signal.
 Parameter setting
To assign broadcast cancel to a sequence input terminal, enter the corresponding value ("78") to
the input terminal function setting parameter.
Furthermore, if the broadcast cancel signal “78” is assigned to the parameter CONT always ON,
the broadcast function is kept disabled. (The query of broadcast is always canceled.)