Danfoss VLT HVAC User Manual

Par. No. # Parameter description Default value 4-set-up Change during
operation
Conver-
sion index
Type
22-8* Flow Compensation 22-80 Flow Compensation [0] Disabled All set-ups TRUE - Uint8 22-81 Square-linear Curve Approximation 100 % All set-ups TRUE 0 Uint8
22-82 Work Point Calculation [0] Disabled All set-ups TRUE - Uint8
22-83 Speed at No-Flow [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
22-84 Speed at No-Flow [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
22-85 Speed at Design Point [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
22-86 Speed at Design Point [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
22-87 Pressure at No-Flow Speed 0.000 N/A All set-ups TRUE -3 Int32
22-88 Pressure at Rated Speed 999999.999 N/A All set-ups TRUE -3 Int32
22-89 Flow at Design Point 0.000 N/A All set-ups TRUE -3 Int32
22-90 Flow at Rated Speed 0.000 N/A All set-ups TRUE -3 Int32
6. How to programme the frequency converter VLT
®
HVAC Drive Operating Instructions
114 MG.11.A4.02 - 09.10.06. VLT
®
is a registered Danfoss trademark
6

Danfoss VLT HVAC Specifications

General

Enclosure Rating	IP20, IP21, IP54, IP55, IP66
Storage Temperature Range	-25°C to +70°C
Output Voltage Range	0-100% of supply voltage
Communication Protocols	Modbus RTU, BACnet, Ethernet/IP, Profibus DP
Ambient Temperature Range	-10°C to +50°C (without derating)
Relative Humidity	5% to 95% non-condensing
Altitude	Up to 1000 m without derating
Cooling Method	Air cooled
Application	HVAC systems, Pumps, Fans, Compressors
Voltage Range	200-240 V, 380-500 V, 525-600 V
Frequency Range	0 Hz to 590 Hz