Danfoss VLT HVAC Drive User Manual

1-21 Motor Power [HP]
Value:
1.5-55 HP
Size related
Function:
Enter the nominal motor power (in HP) ac-
cording to the motor nameplate data. The
default value corresponds to the nominal rat-
ed output of the unit.
This parameter cannot be adjusted while the
motor is running.
1-22 Motor Voltage
Value:
10 - 1,000 V
Size related
Function:
Enter the nominal motor voltage according to
the motor nameplate data. The default value
corresponds to the nominal rated output of
the unit.
This parameter cannot be adjusted while the
motor is running.
1-23 Motor Frequency
Value:
20 - 1,000 Hz
Size related
Function:
Select the motor frequency value from the
motor nameplate data. For 87 Hz operation
with 230/400 V motors, set the nameplate da-
ta for 230 V/50 Hz. Adapt par. 4-13
Motor
Speed High Limit [RPM)
and par. 3-03 Maxi-
mum Reference
to the 87 Hz application.
This parameter cannot be adjusted while the
motor is running.
1-24 Motor Current
Value:
0.1-10,000 A
Size related
Function:
Enter the nominal motor current value from
the motor nameplate data. This data is used
for calculating motor torque, motor thermal
protection, etc.
This parameter cannot be adjusted while the
motor is running.
1-25 Motor Nominal Speed
Value:
100 - 60,000 RPM
Size related
Function:
Enter the nominal motor speed value from the
motor nameplate data. This data is used for
calculating automatic motor compensations.
This parameter cannot be adjusted while the
motor is running.
3-41 Ramp 1 Ramp-up Time
Value:
1 - 3,600 s
3 s
Function:
Enter the ramp-up time, i.e., the acceleration
time from 0 RPM to the rated motor speed
n
M,N
(par. 1-25). Choose a ramp-up time such
that the output current does not exceed the
current limit in par. 4-18 during ramping. En-
ter the ramp-up time, i.e., the acceleration
time from 0 RPM to the rated motor speed
n
M,N
(par. 1-25).
par .3 − 41 =
t acc × n norm par .1 − 25
Δ ref rpm
s
6. How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
66 MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
6

Danfoss VLT HVAC Drive Specifications

General

Type	VLT HVAC Drive
STO (Safe Torque Off)	Yes
Enclosure	IP20
Output Frequency	0-500 Hz
Brake Chopper	Built-in (depending on frame size)
EMC Filter	Built-in (depending on frame size)
Communication	Ethernet
Power Range	0.37 kW to 630 kW
Input Voltage	200-240V, 380-480V, 525-600V
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Ambient Temperature	-10°C to +50°C (with derating above +40°C)
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% (non-condensing)
Cooling Method	Air-cooled