
5-17
Continued
C.
Sending/Receiving Data
Data that can be sent and received are run/stop commands, frequency reference, fault reset, drive
status, and setting and reading of parameters.
n003
: Operation Method Selection
Factory setting: 0
Range: 0 to 2
Parameter n003 selects where the run/stop commands (sequence) will come from. To be able to
provide a run command over the Modbus serial communications link, set this to a data of “2.”
n004
: Reference Selection
Factory setting: 0
Range: 0 to 6
Parameter n004 selects where the frequency reference will come from. To be able to provide a
frequency reference over the Modbus serial communications link, set this to a data of “6.”
n050
thru n056 : Multi-function Inputs
Data 18: Serial communication/
(Term. S2-S6)
Digital Operator
Selects operation by serial communication or by external terminal. If the status of this command input
is changed while the drive is running, the selection is ignored until the next time the drive is stopped.
Open
: Run according to the setting of Operation Method Selection (n003) and
Reference Selection (n004).
Closed
: Run by frequency reference and run command from serial
communication.
EXAMPLE:
n003
setting is " 1 ", and n004 setting is " 2 ".
n056
= 18.
TERMINAL S6 Open:
Frequency reference from control circuit terminal FR
and run command from control circuit terminals S1, S2.
TERMINAL S6 Closed: Frequency reference and run command from serial
communication.
5.14 MODBUS CONTROL
Содержание GPD 315
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