Danfoss VLT HVAC Drive User Manual

Par. No. # Parameter description Default value 4 set-up Change during
operation
Conver-
sion index
Type
25-8* Status 25-80 Cascade Status 0 N/A All set-ups TRUE 0 VisStr[25] 25-81 Pump Status 0 N/A All set-ups TRUE 0 VisStr[25]
25-82 Lead Pump 0 N/A All set-ups TRUE 0 Uint8
25-83 Relay Status 0 N/A All set-ups TRUE 0 VisStr[4]
25-84 Pump ON Time 0 h All set-ups TRUE 74 Uint32
25-85 Relay ON Time 0 h All set-ups TRUE 74 Uint32
25-86
Reset Relay Counters [0] Do not reset All set-ups TRUE - Uint8
25-9* Service 25-90 Pump Interlock [0] Off All set-ups TRUE - Uint8 25-91 Manual Alternation 0 N/A All set-ups TRUE 0 Uint8
6. How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
128 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