Danfoss VLT User Manual

Par. No. # Parameter description Default value
(SR = Size related)
4 set-up Change during oper-
ation
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
VLT
®
HVAC Drive Instruction Manual
6 How to program the adjustable frequency
drive
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark 6-85
6

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)