Sako SKI600 - Page 105

099
0: speed command (output frequency,
-100.0% ～ 100.0%)
1: torque command (output torque,
-200.0% ～ 200.0%)
F6.15
External impulse input
corresponding physical quantity
0～1 0
These above function codes defined input range
of impulse input channel and the corresponding
physical quantity percentage.
Multi-function terminal X6 must be defined as
"impulse frequency input" function.
Impulse input filtering time constant are mainly
used for filtering process of impulse signal. The
principle is the same with analog input filtering
time constant.
F6.16
External impulse input lower limit
0.00 ～ 50.00kHz 0.00
F6.17
External impulse lower limit
corresponding physical quantity
setting
-200.0% ～ 200.0% 0.0%
F6.18
External impulse input upper limit
0.00 ～ 50.00kHz 20.00
F6.19
External impulse upper limit
corresponding physical quantity
setting
-200.0% ～ 200.0% 100.0%
F6.20
External impulse input 󽗉ltering time
0.00S ～ 10.00S 0.05
These above function codes determined the
corresponding relation of multi-function analog
output terminal AO, impulse output terminal DO
with each physical quantity. As showed in the
following table:
F6.21
AO1 multi-function analog output
terminal
0-13 0
F6.22
AO2 multi-function analog output
terminal
0-13 4
F6.23
DO multi-function impulse output
tenmnal
0-13 11
4.2 Detailed Function Description
Fb: zero frequency running threshold value
Fa: fb - zero frequency backlash
Fig. F6-1 zero-frequency function
schematic diagram
"*
$VSSFOU
*OQVU
*NBY
*NJO
'NJO

GB GC
'NBY0SJHJOBM
4FUUJOH'SFR
"DUVBM
4FU'SFR
0SJHJOBM
4FUUJOH'SFR
*C
*B
setting frequency is fa, the VFD will stop
output. This fb is defined as zero-frequency
running threshold value, determined by F6.13;
fb-fa is defined as zero-frequency hysteresis,
determined by F6. 14.
This function can achieve sleep function and
maintain an energy-saving operation, and
avoid frequent fluctuation around threshold
frequency through hysteresis width.