
81901A “MSW_GPC-40/600A”_03-2021_ENG_page 109
3.28. Softstart
Softstart allows a gradual increase in power output. It can
be enabled in either phase control or zero crossing modes
(or pulse train modes) and acts by controlling the conduc-
tion angle.
Softstart is enabled via parameter
hd.5
.
The softstart ramp starts from a zero conduction angle and
reaches the angle set in parameter
PS.HI
within the time
period set in parameter
PS.tm
(0.1 to 60.0 seconds)
.
A linear softstart in power can be configured with parameter
hd.5
(+64), i.e., starting from zero, the power value corre-
sponding to the maximum conduction angle set in
PS.HI
is
reached starting from zero.
The softstart ends before the defined time if the power
reaches the corresponding required value set in manual
control.
During the ramp phase, control of the maximum peak cur-
rent can be enabled via the
hd.5
parameter; the peak value
can be set in parameter
PS.tA
.
This function is useful in the event of a short circuit on the
load or of loads with high temperature coefficients in order
to automatically adapt the start-up time to the load.
The softstart ramp is activated at the first startup after the
Power-On and after a software restart. It can be reactivated
by a software command by writing bit 108, or automatically
if there are OFF conditions for a time longer than that set in
PS.oF
(if =0 the function is as if it were disabled).
The switch-off ramp can also be enabled via parameter
hd.5
(+256). In this case, zero power is achieved within the
set time.
3.28.1.
Maximum phase of the phase softstart ramp
Address
Format
GPC-OP
menu
Acronym
Global /
M/E1/E2
GF_eXpress menu
Attribute
Retentive
Type
Unit of mea
-
surement
Default
Single-
node
Multi-
node
Description
1654
630
16 bit
09.01.04
PS.Hi
M
MainMenu
→
M
→
Power controls
→
PS.Hi_1
R/W
■
Float
%
100.0
2755
09.02.04
E1
MainMenu
→
E1
→
Power controls
→
PS.Hi_2
4803
09.03.04
E2
MainMenu
→
E2
→
Power controls
→
PS.Hi_3
The parameter sets the maximum phase of the phase softstart ramp.
min...max:
0.0
...
100.0
3.28.2.
Phase softstart ramp duration
Address
Format
GPC-OP
menu
Acronym
Global /
M/E1/E2
GF_eXpress menu
Attribute
Retentive
Type
Unit of mea
-
surement
Default
Single-
node
Multi-
node
Description
1729
705
16 bit
09.01.05
PS.tm
M
MainMenu
→
M
→
Power controls
→
PS.tm_1
R/W
■
Float
sec.
10.0
2753
09.02.05
E1
MainMenu
→
E1
→
Power controls
→
PS.tm_2
4801
09.03.05
E2
MainMenu
→
E2
→
Power controls
→
PS.tm_3
The parameter sets the duration of the phase softstart ramp.
min...max:
0.1
...
60.0
Содержание GPC
Страница 2: ......
Страница 6: ...81901 MSW_GPC 40 600A _03 2021_ENG_page 4 ...
Страница 8: ...81901 MSW_GPC 40 600A _03 2021_ENG_page 6 ...
Страница 10: ...81901 MSW_GPC 40 600A _03 2021_ENG_page 8 ...
Страница 12: ...81901 MSW_GPC 40 600A _03 2021_ENG_page 10 ...
Страница 155: ......