ABB RELION 620 Series Technical Manual page 825

1MAC504801-IB E
11.9.3
11.9.4
620 series ANSI
Technical Manual
Functionality
Time delay off (8 pcs) TOF can be used, for example, for a drop-off-delayed output related
to the input signal. The function contains eight independent timers. There is a settable
delay in the timer. Once the input is activated, the output is set immediately. When the
input is cleared, the output stays on until the time set with the Off delay time setting has
elapsed.
t t t +dt
0 1 1
GUID-D45492E6-5FBC-420C-B1BF-B3A1F65ADF96 V1 EN
Figure 415: Timer operation
Signals
Table 601: TOF Input signals
Name Type
IN1 BOOLEAN
IN2 BOOLEAN
IN3 BOOLEAN
IN4 BOOLEAN
IN5 BOOLEAN
IN6 BOOLEAN
IN7 BOOLEAN
IN8 BOOLEAN
Table 602: TOF Output signals
Name Type
Q1 BOOLEAN
Q2 BOOLEAN
Q3 BOOLEAN
Q4 BOOLEAN
Q5 BOOLEAN
Table continues on next page
t t t t t +dt
2 3 4 5 5
dt = Off delay time
Default Description
0=False Input 1 status
0=False Input 2 status
0=False Input 3 status
0=False Input 4 status
0=False Input 5 status
0=False Input 6 status
0=False Input 7 status
0=False Input 8 status
Description
Output 1 status
Output 2 status
Output 3 status
Output 4 status
Output 5 status
Section 11
Other functions
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