Date Code 20010719 701 Motor Protection Relay
ASCII Serial Port Operation
Command Explanations
6.11
ACC & 2AC (Go to Access Level 1 or 2)
The ACC and 2AC commands provide entry to the multiple access levels.
Different commands are available at the different access levels as shown in Table 6.4
on page 6.8. Commands ACC and 2AC are explained together because they operate
similarly.
ACC moves from Access Level 2 to Access Level 1.
2AC moves from Access Level 1 to Access Level 2.
See PASSWORD (Level 2) on page 6.20 for more information on passwords.
The factory default password for Access Level 2 is 701.
The relay closes the ALARM b-contact for one second after a successful Level 2
access. If you make three incorrect password guesses, access is denied and the
ALARM contact closes for one second. Figure 6.4 shows an example 2AC command
execution.
=>2AC
Password: ? 701@@@
SEL-701 Date: 08/27/1999 Time: 11:01:59.467
MOTOR RELAY
Level 2
=>>
Figure 6.4 2AC Command Example.
ANALOG (Level 2)
Use the ANALOG p t command to test the relay analog current output. When you
use the ANALOG command, the relay ends normal analog current output and sends a
signal defined by the percentage value, p = 0%–100% for t minutes (t = 1–10 minutes).
For example, when the analog output signal type is 4–20 mA, the command ANA 75
5.5 instructs the relay to output 16 mA (75% of full scale) for 5.5 minutes or until any
character or space key is pressed to end the test. Figure 6.5 shows an example ANA
command execution.
=>>ANA 75 5.5
Outputing 16.00mA to Analog Output Port for 5.5 minutes.
Press any key to end test
Analog Output Port Test Completed.
=>>
Figure 6.5 ANA Command Example.
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