Sako SKI600, Manual

Page: 134 / 180

128
Fig. FA-3 Off Load Detection
Notice
With the setting of parameter FA.12 and
FA.13, when the output current of the
driver is higher than overload pre-alarm
level (FA.12), the driver will send pre-alarm
signal after delay time (FA.13), i.e. the
control panel will display "A-09".
Overload pre-alarm function is mainly used
for monitoring overload condition before
overload protection action. Overload pre-
alarm level defines the current threshold of
FA.12
Overload pre-alarm level
G tyep: 20％～ 200％ *VFD
rated current 160%
P tyep: 20％～ 200％ *VFD
rated current 120%
Depending
on model
This parameter defines the delay time from
the time when the output current of VFD is
higher than the overload pre-alarm level
(FA.12) to the time when overload pre-alarm
signal is sent.
FA.13
Overload pre-alarm delay
0.0 ～ 300s
10.0
For details see function description NO.51 of
F7.18 ～ F7.21.
FA.14
Temperature detection threshold
0.0℃～ 90.0℃
65.0℃
0: both invalid
1: invalid for input, valid for output
2: valid for input, invalid for output
3: both valid
Factory default I for VFD under 7.5kW,
factory default 3 for VFD above 11kW.
FA.15
Phase loss protection of input/output
0 ～ 3
Depending
on model
7BMJE
5JNF
0GG-PBE
%FUFDUJPO5JNF 0GG-PBE
%FUFDUJPO5JNF
0VUQVU
$VSSFOU
0GG-PBE
%FUFDUJPO
-FWFM
0GG-PBE
%FUFDUJPO
"DUJPO
4.2 Detailed Function Description
0: off load detection disabled
Off load detection level (FA.10) defines the
current threshold of off load action, and the
set value is the percentage relative to rated
current of the VFD.
Off load time (FA.10) defines the lasting time
that the driver output current is lower than
off load detection level (FA.11) continuously,
after which the off load signal is sent.
Off load status valid means that the
operating current of the driver is lower than
off load detection level and the lasting time
exceeds off load detection time.
FA.10
Off load detection time
0.1S ～ 60.0S
5.0
FA.11
Off load detection level
0.0 ～ 100.0%*rated
current of VFD
0.0%
overload pre-alarm action, and the set value is
the percentage relative to the rated current of
VFD.