Omron SYSDRIVE 3G3MV A2002, User Manual

Page: 201 / 348

7-7
·
Ten methods can be used to input the frequency reference in remote mode. Select the
ideal method according to the application.
n004
Frequency Reference Selec-
tion
Register 0104
Hex
Changes during
operation
No
Setting
range
0 to 8 Unit of
setting
1 Default setting 0
Set Values
Value Description
0 The FREQUENCY adjuster on the Digital Operator is enabled.
1 Frequency reference 1 (024) is enabled.
2 Frequency reference control terminal for 0- to 10-V voltage input is enabled.
3 Frequency reference control terminal for 4- to 20-mA current input is enabled.
4 Frequency reference control terminal for 0- to 20-mA current input is enabled.
5 Pulse train reference control terminal is enabled.
6 Frequency reference through communications is enabled.
7 Multi-function analog voltage for 0- to 10-V input is enabled.
Used only if two analog inputs are required in PID control.
8 Multi-function analog current for 4- to 20-mA) input is enabled.
Used only if two analog inputs are required in PID control.
9 Frequency reference through option (CompoBus/D communications) is
enabled.
Note 1. To input the frequency reference through RS-422/485 communications, set this
parameter to 6. Then the frequency reference only through RS-422/485 com-
munications will be enabled.
Note 2. The frequency reference can be input through RS-422/485 with multi-function
input settings as well. For details, refer to
7-1-4 Setting the Multi-function
Inputs .
7-1-4 Setting the Multi-function Inputs (n050 to n056)
·
In addition to the methods described above, the RUN command and frequency refer-
ence can be input through RS-422/485 communications by setting the value 18 in any
one of the parameters from n050 to n056 (multi-function input).
·
Subsequently, the following operations are selectable in remote mode.
When the function-set input terminal is OFF, the RUN command will be executed
according to the setting in n003 (RUN command selection) and the frequency refer-
ence will be executed according to the setting in n004 (frequency reference selec-
tion).
When the function-set input terminal is ON, the Inverter will operate according to the
RUN command and frequency reference through RS-422/485 communications.
Communications Chapter 7