Control Mode - Westpow STR.B Series User Manual

Str ac motor smart soft starter 7.5kw-500kw/380v
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User Manual
User Manual
5.3
5.3 Main Circuit Wiring
Main Circuit Wiring
There are six main circuit terminals for A series product. R. S. T ( power
There are six main circuit terminals for A series product. R. S. T ( power
line) and U. V. W(motor line).See figure F-5
line) and U. V. W(motor line).See figure F-5
There are nine main circuit terminals for B series product. R. S. T(Power
There are nine main circuit terminals for B series product. R. S. T(Power
line) and U. V. W(motor line) and U1.V1.W1(bypass line). See figure F-6
line) and U. V. W(motor line) and U1.V1.W1(bypass line). See figure F-6
5.4 Control Circuit Terminals
5.4
Control Circuit Terminals
There are control circuit terminals on the main control board. This control
There are control circuit terminals on the main control board. This control
circuit terminal provides convenience for the user to realize remote con-
circuit terminal provides convenience for the user to realize remote con-
trol and external signal control. User can connect the corresponding
trol and external signal control. User can connect the corresponding
terminals according to the actual state. By setting the parameter, user can
terminals according to the actual state. By setting the parameter, user can
select keyboard mode or terminal mode to control starting and stopping.
select keyboard mode or terminal mode to control starting and stopping.
There are two terminal rows, X1(10 bit) and X2(6 bit). For detail see
There are two terminal rows, X1(10 bit) and X2(6 bit). For detail see
figure 5-2 below.
figure 5-2 below.
Output
Output
Soft stop
Soft stop
Free stop
Free stop
Reset
Reset
4-20ma
4-20ma
Jog
Jog
Common
Common
Start
Start
X1
X1
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Note: For detail see table 5-1
Note: For detail see table 5-1
OPERATION
10
MENU
Start
Start
Bypass
Bypass
Fault
Fault
completed
completed
X2
X2
9 9
10 10
01 01
02 02
03 03
04 04
05 05
06 06
Figure 5-2

Control mode

Control mode
6
6
This product has three start modes: Current Limit and Voltage Ramp and
This product has three start modes: Current Limit and Voltage Ramp and
Jogging. These start modes is independent. Only one of them can be
Jogging. These start modes is independent. Only one of them can be
chosen. Text below introduce that the different of them and which mode
chosen. Text below introduce that the different of them and which mode
should be selected.
should be selected.
6.1
6.1 Voltage Ramp
Voltage Ramp
The waveform of the voltage shows in Figure 6-1. U1 in figure is initial
The waveform of the voltage shows in Figure 6-1. U1 in figure is initial
output voltage. When starting, the output voltage is up to U1 immediately,
output voltage. When starting, the output voltage is up to U1 immediately,
and then ramps up gradually according to the parameter Start Time
and then ramps up gradually according to the parameter Start Time
setting in advance. Then the motor accelerates continuously. When the
setting in advance. Then the motor accelerates continuously. When the
output voltage reaches the rate value Ue, the motor reaches the rate speed.
output voltage reaches the rate value Ue, the motor reaches the rate speed.
Starting process finish. The Initial Voltage U1 and the Start Time t can be
Starting process finish. The Initial Voltage U1 and the Start Time t can be
set according to the load. The range of U1 is 5~75%Ue, and the range of it
set according to the load. The range of U1 is 5~75%Ue, and the range of it
is 1~200s.
is 1~200s.
This mode is used in the state with large inertia load, or in the state in
This mode is used in the state with large inertia load, or in the state in
which the current is not the important but the stability is important. Using
which the current is not the important but the stability is important. Using
th
th
mode, the mechanical stress and starting striking may decreased
mode, the mechanical stress and starting striking may decreased
greatly. The bigger the initial voltage is, the more the initial torque and
greatly. The bigger the initial voltage is, the more the initial torque and
starting striking is. The time of starting is related to the parameter of
starting striking is. The time of starting is related to the parameter of
tarting ime and load. It is unconcerned with current limited. For
tarting ime and load. It is unconcerned with current limited. For
detail see chapter 8 and chapter 9.
detail see chapter 8 and chapter 9.
Voltage Ramp start
Voltage Ramp start
Figure 6-1
User Manual
User Manual
t
t
OPERATION
11
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