Delta VFD-L series User Manual page 35

M a x .
O u tp u t
P r.1 - 0 0
F re q .
6 0 H z
3 0 H z
0 H z
0 V
4 m A
Example 2:
In this example with the potentiometer set to 0V the Output Frequency is 10 Hz. The
mid-point of the potentiometer becomes 40 Hz. Once the Maximum Output Frequency is
reached any further increase of the potentiometer will not increase output frequency.
M a x .
P r.1 - 0 0
O u tp u t
F re q .
6 0 H z
1 0 H z
B i a s
A d j u s tm e n t
0 H z 0 V
4 m A
Example 3:
The example also shows the popular method. The whole scale of the potentiometer can be
used as desired. In addition to signals of 0 to 10V and 4 to 20mA, the popular voltage signals
also include signals of 0 to 5V, 20 to 4mA or that under 10V. Regarding the setting, please
refer to the following examples.
M a x .
P r.1 - 0 0
O u tp u t
F re q .
6 0 H z
1 0 H z
B i a s
A d j u s tm e n t
0 H z 0 V
4 m A
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
F a c to r y S e tti n g s
P r.1 - 0 0 = 6 0 H z - - M a x . o u tp u t F re q .
P r.4 - 0 0 = 0 H z - - P o te n tio m e te r b ia s fr e q .
P r.4 - 0 1 = 0 - - b i a s p o la r i ty
P r.4 - 0 2 = 1 0 0 % - - p o t. fr e q . g a in
P r.4 - 0 3 = 0 - - p o t. R E V m o tio n e n a b le
1 0 V
5 V
2 0 m A
1 2 m A
P a r a m e te r S e tt in g s
P r.1 - 0 0 = 6 0 H z - - M a x . o u tp u t F r e q .
P r.4 - 0 0 = 1 0 H z - - P o t e n t io m e te r b ia s fr e q .
P r.4 - 0 1 = 0 - - b i a s p o la r i ty
P r.4 - 0 2 = 1 0 0 % - - p o t. fr e q . g a in
P r.4 - 0 3 = 0 - - p o t. R E V m o tio n e n a b le
5 V 1 0 V
2 0 m A
1 2 m A
P a r a m e te r S e tti n g s
P r.1 - 0 0 = 6 0 H z - - M a x . o u tp u t F r e q .
P r.4 - 0 0 = 1 0 H z - - P o t e n ti o m e te r b i a s fr e q .
P r.4 - 0 1 = 0 - - b i a s p o la r i ty
P r.4 - 0 2 = 8 3 % - - p o t. fr e q . g a i n
P r.4 - 0 3 = 0 - - p o t. R E V m o tio n e n a b le
C a l c u la ti o n o f g a i n
P r.4 - 0 2 = ( 1 - P r.4 - 0 0
1 0 V
5 V
2 0 m A
1 2 m A
P o te n tio m e te r S c a le
1 0
0 V
P o te n tio m e te r S c a le
) x 1 0 0 %
P r.1 - 0 0
5-17
VFD-L Series
3 0
0
6 0
H z
1 0 V
0 V
4 0
6 0
It's 6 0 H z
w ith in th i s
H z
r a n g e .
1 0 V
3 5
6 0
1 0
H z
1 0 V
0 V
P o te n tio m e te r S c a le
5