Danfoss VLT HVAC Drive User Manual

1. Use a clamp from the accessory bag
to connect the shield to the adjusta-
ble frequency drive decoupling plate
for control cables.
See section entitled
Grounding of Shielded/
Armored Control Cables
for the correct termi-
nation of control cables.
Illustration 4.29: Control cable clamp.
4.1.20. Switches S201, S202, and S801
Switches S201 (Al 53) and S202 (Al 54) are
used to select a current (0-20 mA) or a voltage
(0 to 10 V) configuration of the analog input
terminals 53 and 54 respectively.
Switch S801 (BUS TER.) can be used to enable
termination on the RS-485 port (terminals 68
and 69).
Please note that the switches may be covered
by an option, if so equipped.
Default setting:
S201 (AI 53) = OFF (voltage input)
S202 (AI 54) = OFF (voltage input)
S801 (Bus termination) = OFF
Illustration 4.30: Switches location.
4.2. Final optimization and test
4.2.1. Final optimization and test
To optimize motor shaft performance and optimize the adjustable frequency drive for the con-
nected motor and installation, please follow these steps: Ensure that adjustable frequency
driverand motor are connected and that power is applied to adjustable frequency drive.
NOTE
Before power-up, ensure that connected equipment is ready for use.
Step 1. Locate motor nameplate
4. Electrical installation VLT
®
HVAC Drive Instruction Manual
46 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