Omron SYSDRIVE 3G3JV - Page 58

3-18
Param-
eter
No.
(Regis-
ter No.
(Hex))
MemoChanges
during
opera-
tion
Default
setting
Set-
ting
range
DescriptionName
n74
(014A)
(See
note 1.)
RS-422A/4
85 RTS
control
selection
Select whether or not to enable the RTS
(request-to-send) communications control
function.
0, 1 0 No
n75
(014B)
Low-speed
carrier fre-
quency re-
duction
selection
Used to select a function to reduce the carrier
frequency when Inverter is at low speed.
0: Function disabled
1: Function enabled
Note Normally set n75 to 0.
0.1 0 No
n76
(014C)
(See
note 1.)
Parameter
copy and
verify func-
tion
Selects the function to read, copy, and verify
the parameters between the memory of the
Inverter and that of the Digital Operator.
rdy: Ready to accept the next command.
rED: Reads the Inverter parameters.
Cpy: Copies the parameter to the Inverter.
vFY: Verifies the Inverter parameters.
vA: Checks the Inverter capacity display.
Sno: Checks the software number.
rdy to
Sno
rdy No
n77
(014D)
(See
note 1.)
Parameter
read pro-
hibit selec-
tion
Selects the copy-prohibit function.
Use this parameter to protect the data in the
EEPROM of the Digital Operator.
0: Read prohibited for Inverter parameters.
(Data cannot be written to EEPROM.)
1: Read possible for Inverter parameters.
(Data can be written to EEPROM.)
0, 1 0 No
n78
(014E)
Error log
Note “– – –” will be displayed if no error has
been recorded.
Note This parameter is monitored only.
Used to display the latest error recorded.
Display
--- --- ---
n79
(014F)
Software
number
Used to display the software number of the
Inverter for OMRON’s control reference use.
Note This parameter is monitored only.
--- --- ---
Note 1. The n68 to n74, n76, and n77 parameters cannot be written via RS422/485 communications.
They are read-only.
Note 2. Motor parameters depend on the Inverter capacity as shown in the following table.
List of Parameters Chapter 3