VD520 Series Inverter User Manual Parameter Description
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11
Frequency setting
increase(UP)
By external terminal pre-set frequency to change frequency
up/down command. Setting frequency can be goes up/down
when frequency source setting for the digital setting.
12
Frequency setting
decrease(DOWN)
13
UP/DOWN setting
clear
When frequency preset is digital preset, the terminal can clear
terminal UP/DOWN or keypad UP/DOWN to change frequency,
to make given frequency back to F0-09 set value.
14
Switching frequency
source
Used for switch to select a different frequency source. Select
function code (F0-05) settings according to frequency source,
when set to switch between two frequency sources as frequency
source, the terminal is used to implement switch in the two kinds
of frequency source.
15
Frequency source A
switching with preset
frequency
The terminal is effective, the frequency source A replaced by
preset frequency (F0-09).
16
Frequency source B
switching with preset
frequency
The terminal is effective, the frequency source B replaced by
preset frequency (F0-09).
17
MS speed terminal 1
It can realize 16S speed through the combination of digital
status of these four terminals. Refer attached table 1 for the 16
MS speed function and other 16 commands.
18
MS speed terminal 2
19
MS speed terminal 3
20
MS speed terminal 4
21
Acceleration/decelerat
ion time selection
terminal 1
It can realize 4 kinds of acceleration/deceleration time selection
through the 4 states of two terminals.
22
Acceleration/decelerat
ion time selection
terminal 2
23
PULSE frequency
(Only effective for
HDI1)
HDI1 as the function of the pulse input terminals.
24
Control command
switch terminal 1
Used to switch between the keypad control and terminal control.
If command source selection for the keypad control, then switch
system for terminal control when terminal is effective; vice
versa.
25
Control command
switch terminal 2
Used to switch between the terminal control and communication
control. If command source selection for the terminal control,
then switch system for communication control when terminal is
effective; vice versa.
26
Immediate DC braking
This terminal is valid, and the inverter directly switchover to the
DC braking state.
27
Deceleration DC
braking
The terminal is valid, slow down to stop inverter and DC braking
starting frequency, and then switchover to DC braking state.
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