Table of Contents
Advertisement
CAUTION
The IP filtering function (Ethernet) (Pr.1442 to Pr.1448) is provided as a means to prevent unauthorized access, DoS attacks,
computer viruses, or other cyberattacks from external devices, but the function does not prevent such access completely. In
order to protect the inverter and the system against unauthorized access by external systems, take additional security
measures. We shall have no responsibility or liability for any problems involving inverter trouble and system trouble by DoS
attacks, unauthorized access, computer viruses, and other cyberattacks. The following are examples of measures to prevent
them.
- Install a firewall.
- Install a personal computer as a relay station, and control the relaying of transmission data using an application program.
- Install an external device as a relay station to control access rights. (For the details of external devices used to control access
rights, contact the distributors of the external devices.)
5.6.5
Frequency command with sign (Pr. 541)
By frequency command with sign, start command (forward rotation/reverse rotation) can be inversed to operate.
Make selection of sign for the frequency command from RWw0.
Pr.
541
Frequency command sign selection
Speed setting using
Pr.37 and Pr.144
setting
0
Not used
1
0
With
1
The setting is available only for the FR-A800 series.
Name
0
Pr.541
Sign
Not
0 to 59000
used
With
-32768 to 32767 (two's complement)
Not
0 to 65535
used
With
-32768 to 32767 (two's complement)
Initial value
Setting range
0, 1
Setting range
Actual frequency command
0 to 590.00 Hz
-327.68 to 327.67 Hz
It depends on Pr. 37, Pr. 144, Pr. 811
(in 1 or 0.1 increments)
INVERTER SETTING
5
.
53
Advertisement
Table of Contents
