Danfoss VLT HVAC Drive User Manual

4.1.18. How to Test Motor and Direction of Rotation.
Note that unintended motor start can occur; make sure no personnel or equipment
is in danger!
Please follow these steps to test the motor connection and direction of rotation. Start with no
power to the unit.
Illustration 4.19:
Step 1: First, remove the insulation on both ends
of a 1.97-2.76 in. [50 to 70 mm] piece of wire.
Illustration 4.20:
Step 2: Insert one end in terminal 27 using a
suitable terminal screwdriver. (Note: For units
with the Safe Stop function, the existing jumper
between terminal 12 and 37 should not be re-
moved for the unit to be able to run!)
Illustration 4.21:
Step 3: Insert the other end in terminal 12 or 13.
(Note: For units with the Safe Stop function, the
existing jumper between terminal 12 and 37
should not be removed for the unit to be able to
run!)
4. Electrical installation VLT
®
HVAC Drive Instruction Manual
42 MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
4

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