Preset speeds can be used to form an operation
pattern of up to eight steps. The desired pattern
is activated in the desired sequence by input sig-
nals at terminals X1, X2 and X3, as shown in
the diagram on page 31.
Each preset speed can be allotted any value
from zero to 400Hz:
Setting Ranges
0.00 to 99.99 in steps of 0.01 = 0Hz to 99.99Hz
100.0 to 400.0 in steps of 0.01 = 100Hz to
400Hz
The first frequency step is always the input
value of Function 01. This will normally, for
pattern operation, be the input at terminals 12 or
C1, although it could be set at the keypad if
Function 01 = 0.
All frequencies are subject to any limits
imposed by Functions 03, 36 and 37.
The accelerations and decelerations between
steps are set by Functions 06 and 07 (Acc./Dec.
1), but may alternatively be set by Functions 63
and 64 (Acc./Dec. 2), if Function 43 = 0. Refer
to Function 43, configuration of terminal X4.
Some applications operate more effectively if
abrupt beginnings and ends of accelerations and
decelerations are smoothed off to eliminate
shocks to loads. Jaguar VXS inverters offer lin-
ear acceleration and two versions of an S-ramp,
as shown in the diagram above.
0 = S-ramp inactive (factory-set default).
Acceleration and deceleration are linear.
1 = S-ramp active. Quick transition to or from
zero or maximum speed to linear rate of
change.
2 = S-ramp active. Slower transition to or from
zero or maximum speed to linear rate of
change.
The maximum gradient of either S-ramp is the
same as that of the linear acceleration/decelera-
tion, Functions 06 and 07 (and 63 or 64)*.
Acceleration and deceleration times set by
Functions 06 and 07 (and 63 or 64)* are
31
21 Preset speed 1
22 Preset speed 2
23 Preset speed 3
24 Preset speed 4
25 Preset speed 5
26 Preset speed 6
27 Preset speed 7
01
21
22
23
24
25
26
27
Func.
Frequency setting
I/P ref. Function 01
Preset speed 1
Preset speed 2
Preset speed 3
Preset speed 4
Preset speed 5
Preset speed 6
Preset speed 7
X1 X2 X3
= ON = OFF
FWD
X3
X2
X1
O/P
Hz
t
Func. 01
Keypad or
terminal I/P
Func.
21
Func.
22
Func.
24
Func.
26
Func.
23
Func.
25
Func.
27
ON ON
ON ON ON
ON ON
ON
28 = 0
28 = 1
28 = 2
% O/P
Hz
28 = 0
28 = 1
28 = 2
Function 06 or 63
Function 07 or 64
t
28 S-ramp accel./decel. selector
* Refer to Function 43, setting = 0
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