18
★
= ROM default setting. Text in ( ) = display text. Figures in [ ] are used when communicating with the bus.
Programming
VLT
®
Series 2000
Group 1 -- Load and Motors
101 Speed Control (SPEED CONT)
Value:
Open loop (OPEN LOOP)
[0]
★
Slip comp. (SLIP COMP)
[1]
Closed loop (CLOSED LOOP)
[2]
Function:
You can choose among three different kinds of speed
control:
Open loop, Slip compensated and Closed loop.
Description:
Choose
Slip compensation for normal operation , where the
speed must be constant no matter what the load is. Choose
Open loop when the motors used are parrellel connected or
when synchronous motors are used.
Choose Closed loop when you want operation with process
feedback. For closed loop opereation you must choose the
feedback type in parameter 114 (current, voltage or pulses).
102 Setting of Current Limit (SET CUR.LI)
Value:
★
Pre-programmed value (VALUE SET)
[0]
Voltage signal (10VDC SIGNAL)
[1]
Current signal (20 mA SIGNAL)
[2]
Function:
You can choose to control the speed by means of the
current limit. This makes indirect torque control possible.
The current limit is set in parameter 209, or by means of a
current or voltage signal in parameter 412 or parameter
413.
Description:
Choose between controlling the current limit via parameter
209 or one of the analog inputs, terminal 53 0r 60.
10V/20
mA corresponds to 160% current (2030: 140%).
Do not select the same signal for PI control.
103 Motor Power (MOTOR POWE)
Value:
Under size
[0]
★
Nom. size
[1]
Over size
[2]
Function:
This parameter allows a choice of the kW value that best
matches the rated motor power.
The factory setting will be for the nominal kW equivalent of
the horsepower size on the drive nameplate.
103 (continued)
Description:
Check the rated motor power on the motor nameplate. If it
is not equal to the nominal horsepower rating on the drive
nameplate, select the most appropriate size (1 HP = 0.746
kW). Parameters 107, 108, 109, 110, 111 and 112 change
automatically when the value in parameter 103 is changed.
104 Motor Voltage (U
M,N
)(MOTOR VOLT)
Value:
Only 200-230 V units
200 V
[0]
208 V
[1]
★
220 V
[2]
230 V
[3]
240 V
[4]
Only 380-460 V units
380 V
[0]
★
400 V
[1]
415 V
[2]
440 V
[3]
460 V
[4]
Function:
The rated voltage that most closely matches the motor
nameplate voltage can be selected.
Description:
You can choose among different voltage values. The value
is selected on the basis of the data on the motor plate.
Parameters 107, 108, 109, 110, 111 and 112 change
automatically when the value in parameter 104 is changed.
105 Motor Frequency (f
N
)(MOTOR FREQ)
Value:
★
50 Hz (50 Hz)
[0]
60 Hz (60 Hz)
[1]
87 Hz (87 Hz)
[2]
100 Hz (100 Hz)
[3]
Function:
Choose the frequency that corresponds to the rated motor
frequency.
Description:
You can choose among 4 different frequency values. The
value is selected on the basis of the data on the type plate
of the motor.
The U/f ratio in parameter 111 is changed automatically.
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