Danfoss VLT series Quick Guide

Parameter Range Default Function
6-21 Terminal 54 High Voltage 0-10 V 10 V Enter the voltage that corresponds to the low
high reference value.
6-22 Terminal 54 Low Current 0-20 mA 4 Enter the current that corresponds to the high
reference value.
6-23 Terminal 54 High Current 0-20 mA 20 Enter the current that corresponds to the high
reference value.
6-24 Terminal 54 Low Ref./Feedb.
Value
-4999-4999 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.
6-25 Terminal 54 High Ref./Feedb.
Value
-4999-4999 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.
6-26 Terminal 54 Filter Time
Constant
0-10 s 0.01 Enter the filter time constant.
20-81 PI Normal/ Inverse Control [0] Normal
[1] Inverse
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.
20-83 PI Start Speed [Hz] 0-200 Hz 0 Enter the motor speed to be attained as a
start signal for commencement of PI control.
20-93 PI Proportional Gain 0-10 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.
20-94 PI Integral Time 0.1-999.0 s 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.
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 Default Function
0-03 Regional
Settings
[0] Interna-
tional
[1] US
0
0-06 GridType [0] -[132] see
start -up
wizard for
open loop
application
Size selected Select operating
mode for restart
upon
reconnection of
the drive to
mains voltage
after power
down.
1-20 Motor
Power
0.12-110 kW/
0.16-150 hp
Size related Enter motor
power from
nameplate data.
1-22 Motor
Voltage
50.0-1000.0 V Size related Enter motor
voltage from
nameplate data.
Parameter Range Default Function
1-23 Motor
Frequency
20.0-400.0 Hz Size related Enter motor
frequency from
nameplate data.
1-24 Motor
Current
0.01-10000.00
A
Size related Enter motor
current from
nameplate data.
1-25 Motor
Nominal
Speed
100.0-9999.0
RPM
Size related Enter motor
nominal speed
from nameplate
data.
Quick Guide
VLT
®
HVAC Basic Drive Cascade Controller Quick Guide
MG18F402 - VLT
®
is a registered Danfoss trademark 19
1 1

Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)