Danfoss VLT HVAC Drive User Manual

Par. No. # Parameter description Default value 4 set-up Change during
operation
Conver-
sion index
Type
22-0* Miscellaneous 22-00 External Interlock Delay 0 s All set-ups TRUE 0 Uint16 22-2* No-Flow Detection 22-20 Low Power Auto Set-up [0] Off All set-ups FALSE - Uint8 22-21 Low Power Detection [0] Disabled All set-ups TRUE - Uint8
22-22 Low Speed Detection [0] Disabled All set-ups TRUE - Uint8
22-23 No-Flow Function [0] Off All set-ups TRUE - Uint8
22-24 No-Flow Delay 10 s All set-ups TRUE 0 Uint16
22-26 Dry Pump Function [0] Off All set-ups TRUE - Uint8
22-27
Dry Pump Delay 10 s All set-ups TRUE 0 Uint16
22-3* No-Flow Power Tuning 22-30 No-Flow Power 0.00 kW All set-ups TRUE 1 Uint32 22-31 Power Correction Factor 100 % All set-ups TRUE 0 Uint16
22-32 Low Speed [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
22-33 Low Speed [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
22-34 Low Speed Power [kW] ExpressionLimit All set-ups TRUE 1 Uint32
22-35 Low Speed Power [HP] ExpressionLimit All set-ups TRUE -2 Uint32
22-36 High Speed [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
22-37 High Speed [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
22-38 High Speed Power [kW] ExpressionLimit All set-ups TRUE 1 Uint32
22-39 High Speed Power [HP] ExpressionLimit All set-ups TRUE -2 Uint32 22-4* Sleep Mode 22-40 Minimum Run Time 10 s All set-ups TRUE 0 Uint16 22-41 Minimum Sleep Time 10 s All set-ups TRUE 0 Uint16 22-42 Wake-up Speed [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
22-43 Wake-up Speed [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
22-44 Wake-up Ref./FB Difference 10 % All set-ups TRUE 0 Int8
22-45 Setpoint Boost 0 % All set-ups TRUE 0 Int8
22-46 Maximum Boost Time 60 s All set-ups TRUE 0 Uint16 22-5* End of Curve 22-50 End of Curve Function [0] Off All set-ups TRUE - Uint8 22-51 End of Curve Delay 10 s All set-ups TRUE 0 Uint16 22-6* Broken Belt Detection 22-60 Broken Belt Function [0] Off All set-ups TRUE - Uint8 22-61 Broken Belt Torque 10 % All set-ups TRUE 0 Uint8
22-62
Broken Belt Delay 10 s All set-ups TRUE 0 Uint16
22-7* Short Cycle Protection 22-75 Short Cycle Protection [0] Disabled All set-ups TRUE - Uint8 22-76 Interval between Starts start_to_start_min_on_time (P2277) All set-ups TRUE 0 Uint16
22-77 Minimum Run Time 0 s All set-ups TRUE 0 Uint16
6.2.19. 22-** Application Functions
6. How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
124 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