7 Detailed function description SV800/SV800A User Manual
158
Fig.7-5 Anti-Regeneration stall Function
Note: In IM.SVC mode , the function is effective by default in 10S when start.
No.
Name
Set range
Factory default
d2-14
Pre-excitation mode selection
0
～
1
1
In IM.SVC mode, the AC pre-excitation mode cannot be supported because there is no speed
sensor. The function used with the multi-function input terminal (H1-XX=28). For details, refer
to the multi-function input terminal description.
0: AC pre-excitation
Speed sensor needed for this mode.
1: DC pre-excitation
The schematic diagram of the pre-excitation mode is shown in
Fig.7-6
:
Fig. 7-6 Schematic diagram of pre-excitation mode
dc
Speed command
curve
DC Bus voltage
wave
n
min
V
Command
P0-00+10V
max
t
d2-06=0
Speed curve
n
Speed
0
Pre-excitation command
0
Pre-excitation command
Command
Command
n
t
t
r
i
t
t
t
t
r
d2-14=0
n
Current
Speed
d2-14=1
i
Summary of Contents for SV800 Series
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