Danfoss VLT HVAC Drive User Manual

Par. No. # Parameter description Default value 4 set-up Change during
operation
Conver-
sion index
Type
4-1* Motor Limits 4-10 Motor Speed Direction [2] Both directions All set-ups FALSE - Uint8 4-11 Motor Speed Low Limit [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
4-12 Motor Speed Low Limit [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
4-13 Motor Speed High Limit [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
4-14 Motor Speed High Limit [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
4-16 Torque Limit Motor Mode 110.0 % All set-ups TRUE -1 Uint16
4-17 Torque Limit Generator Mode 100.0 % All set-ups TRUE -1 Uint16
4-18 Current Limit ExpressionLimit All set-ups TRUE -1 Uint32
4-19
Max Output Frequency ExpressionLimit All set-ups FALSE -1 Uint16
4-5* Adj. Warnings 4-50 Warning Current Low 0.00 A All set-ups TRUE -2 Uint32 4-51 Warning Current High ImaxVLT (P1637) All set-ups TRUE -2 Uint32
4-52 Warning Speed Low 0 RPM All set-ups TRUE 67 Uint16
4-53 Warning Speed High outputSpeedHighLimit (P413) All set-ups TRUE 67 Uint16
4-54 Warning Reference Low -999999.999 N/A All set-ups TRUE -3 Int32
4-55 Warning Reference High 999999.999 N/A All set-ups TRUE -3 Int32
4-56 Warning Feedback Low -999999.999 ReferenceFeedbackUnit All set-ups TRUE -3 Int32
4-57 Warning Feedback High 999999.999 ReferenceFeedbackUnit All set-ups TRUE -3 Int32
4-58
Missing Motor Phase Function [1] On All set-ups TRUE - Uint8
4-6* Speed Bypass 4-60 Bypass Speed From [RPM] ExpressionLimit All set-ups TRUE 67 Uint16 4-61 Bypass Speed From [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
4-62 Bypass Speed To [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
4-63 Bypass Speed To [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
4-64 Semi-Auto Bypass Set-up [0] Off All set-ups FALSE - Uint8
6.2.5. 4-** Limits/Warnings
VLT
®
HVAC Drive Instruction Manual
6. How to program the adjustable frequency
drive
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark 105
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