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Danfoss VLT HVAC Drive User Manual

Danfoss VLT HVAC Drive
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Par. No. # Parameter description Default value 4 set-up Change during
operation
Conver-
sion index
Type
3-0* Reference Limits
3-02 Minimum Reference ExpressionLimit All set-ups TRUE -3 Int32
3-03 Maximum Reference ExpressionLimit All set-ups TRUE -3 Int32
3-04
Reference Function [0] Sum All set-ups TRUE - Uint8
3-1* References
3-10 Preset Reference 0.00 % All set-ups TRUE -2 Int16
3-11 Jog Speed [Hz] ExpressionLimit All set-ups TRUE -1 Uint16
3-13 Reference Site [0] Linked to Hand / Auto All set-ups TRUE - Uint8
3-14 Preset Relative Reference 0.00 % All set-ups TRUE -2 Int32
3-15 Reference 1 Source [1] Analog input 53 All set-ups TRUE - Uint8
3-16 Reference 2 Source [20] Digital pot.meter All set-ups TRUE - Uint8
3-17 Reference 3 Source [0] No function All set-ups TRUE - Uint8
3-19 Jog Speed [RPM] ExpressionLimit All set-ups TRUE 67 Uint16
3-4* Ramp 1
3-41 Ramp 1 Ramp-up Time ExpressionLimit All set-ups TRUE -2 Uint32
3-42 Ramp 1 Ramp-down Time ExpressionLimit All set-ups TRUE -2 Uint32
3-5* Ramp 2
3-51 Ramp 2 Ramp-up Time ExpressionLimit All set-ups TRUE -2 Uint32
3-52 Ramp 2 Ramp-down Time ExpressionLimit All set-ups TRUE -2 Uint32
3-8* Other Ramps
3-80 Jog Ramp Time ExpressionLimit All set-ups TRUE -2 Uint32
3-81 Quick Stop Ramp Time ExpressionLimit 2 set-ups TRUE -2 Uint32
3-9* Digital Pot.Meter
3-90 Step Size 0.10 % All set-ups TRUE -2 Uint16
3-91 Ramp Time 1.00 s All set-ups TRUE -2 Uint32
3-92 Power Restore [0] Off All set-ups TRUE - Uint8
3-93 Maximum Limit 100 % All set-ups TRUE 0 Int16
3-94 Minimum Limit 0 % All set-ups TRUE 0 Int16
3-95 Ramp Delay 1.000 N/A All set-ups TRUE -3 TimD
6.2.4. 3-** Reference/Ramps
6. How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
104
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
6

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Danfoss VLT HVAC Drive Specifications

General IconGeneral
TypeVLT HVAC Drive
STO (Safe Torque Off)Yes
EnclosureIP20
Output Frequency0-500 Hz
Brake ChopperBuilt-in (depending on frame size)
EMC FilterBuilt-in (depending on frame size)
CommunicationEthernet
Power Range0.37 kW to 630 kW
Input Voltage200-240V, 380-480V, 525-600V
Protection FeaturesOverload, 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 Humidity5-95% (non-condensing)
Cooling MethodAir-cooled

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