Danfoss VLT Series Quick Manual page 21

Quick Guide
Parameter
6-21 Terminal 54 High Voltage
6-22 Terminal 54 Low Current
6-23 Terminal 54 High Current
6-24 Terminal 54 Low Ref./Feedb.
Value
6-25 Terminal 54 High Ref./Feedb.
Value
6-26 Terminal 54 Filter Time
Constant
20-81 PI Normal/ Inverse Control
20-83 PI Start Speed [Hz]
20-93 PI Proportional Gain
20-94 PI Integral Time
Table 1.18 Closed Loop Set-up Wizard
Motor Set-up
The Quick Menu Motor Set-up guides through the needed
motor parameters.
Parameter Range
0-03 Regional [0] Interna-
Settings tional
[1] US
0-06 GridType [0] -[132] see
start -up
wizard for
open loop
application
1-20 Motor 0.12-110 kW/
Power 0.16-150 hp
1-22 Motor 50.0-1000.0 V
Voltage
®
VLT HVAC Basic Drive Cascade Controller Quick Guide
Range
0-10 V
0-20 mA
0-20 mA
-4999-4999
-4999-4999
0-10 s
[0] Normal
[1] Inverse
0-200 Hz
0-10
0.1-999.0 s
Default Function
0
Size selected Select operating
mode for restart
upon
reconnection of
the drive to
mains voltage
after power
down.
Size related Enter motor
power from
nameplate data.
Size related Enter motor
voltage from
nameplate data.
®
MG18F402 - VLT is a registered Danfoss trademark
Default Function
10 V Enter the voltage that corresponds to the low
high reference value.
4 Enter the current that corresponds to the high
reference value.
20 Enter the current that corresponds to the high
reference value.
0 Enter the feedback value that corresponds to
the voltage or current set in 6-20 Terminal 54
Low Voltage/6-22 Terminal 54 Low Current.
50 Enter the feedback value that corresponds to
the voltage or current set in 6-21 Terminal 54
High Voltage/6-23 Terminal 54 High Current.
0.01 Enter the filter time constant.
0 Select [0] Normal to set the process control to
increase the output speed when the process
error is positive. Select [1] Inverse to reduce
the output speed.
0 Enter the motor speed to be attained as a
start signal for commencement of PI control.
0.01 Enter the process controller proportional gain.
Quick control is obtained at high amplifi-
cation. However if amplification is too great,
the process may become unstable.
999.0 s Enter the process controller integral time.
Obtain quick control through a short integral
time, though if the integral time is too short,
the process becomes unstable. An excessively
long integral time disables the integral action.
Parameter Range
1-23 Motor 20.0-400.0 Hz
Frequency
1-24 Motor 0.01-10000.00
Current A
1-25 Motor 100.0-9999.0
Nominal RPM
Speed
Default Function
Size related Enter motor
frequency from
nameplate data.
Size related Enter motor
current from
nameplate data.
Size related Enter motor
nominal speed
from nameplate
data.
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