abc 2000 Series User Manual page 81

protection. If it is set to 1 , the AC drive does not respond to the
running command valid upon AC drive power-on (for example, an
input tennina! is ON before power-on). The AC drive responds only
after the running command is cancelled and becomes valid again.
In addition, the AC drive does not respond to the running command
valid upon fault reset of the AC drive. The run protection can be
disabled only after the running command Is cancelled.
In this way, this parameter is set to 1 , the motor can be protected
from responding to run commands upon power-on or fault reset in
unexpected conditions.
Frequency detection value
(FDT1)
PB.19
Setting Range
Frequency detection
PS.20
Setting Range j0.0%-100.0% (FDT1 level)
If the running frequency is higher than the value of frequency
detection the corresponding M01 terminal becomes ON. If the
running frequency is lower than value of PB.19, that the M01
tenninal outputs on is cancelled.
These two parameters are respectively used to set the detection
value of output frequency and hysteresis value upon cancellation
of the output. The value of PB.20 is a psrcentage of the hysteresis
frequency lo the frequency detection value (PS.1 9).The FDT
function is shown in the following figure.
FDTJ.evi;l
F:oo quen cy
(YO, relay)
detcctiou
reach ed Ll
signal
Figure 4-14
Def It au
frequency
Default
ON
level
FDT
FDThyminisis
-P8.l9'"P8.20
Time(t)
Time(t)