F Enclosure Panel Options - Danfoss VLT Automation Drive FC 300 Instruction Manual

3 How to Install

3.5 F Enclosure Panel Options

Space Heaters and Thermostat
Mounted on the cabinet interior of F enclosure adjustable frequency drives, space heaters controlled via an automatic thermostat help control humidity
inside the enclosure, extending the lifetime of drive components in damp environments.
Cabinet Light with Power Outlet
3 A light mounted on the cabinet interior of F enclosure adjustable frequency drives increases visibility during servicing and maintenance. The housing light
includes a power outlet for temporarily powering tools or other devices, available in two voltages:
• 230 V, 50 Hz, 2.5 A, CE/ENEC
• 120 V, 60 Hz, 5 A, UL/cUL
Transformer Tap Setup
If the cabinet light and outlet and/or the space heaters and thermostat are installed, transformer T1 requires its taps to be set to the proper input voltage.
A 380–500 V drive will initially be set to the 525 V tap and a 525–690 V drive will be set to the 690 V tap to insure no overvoltage of secondary equipment
occurs if the tap is not changed prior to power being applied. See the table below to set the proper tap at terminal T1 located in the rectifier cabinet. For
location in the drive, see illustration of rectifier in the
Input Voltage Range
380-440 V
441-490 V
491-550 V
551-625 V
626-660 V
661-690 V
NAMUR Terminals
NAMUR is an international association of automation technology users in process industries, primarily in the chemical and pharmaceutical industries, in
Germany. Selection of this option provides terminals organized and labeled to the specifications of the NAMUR standard for drive input and output
terminals.
RCM (Residual Current Monitor)
Designed for monitoring residual leakage current to ground on supply line power (TN and TT systems), the RCM requires an external measuring trans-
former (supplied and installed by customer). Two relays (N.O. or N.C.) allow separate setpoints for pre-warning (50% of alarm threshold) and alarm
conditions.
• Integrated into the drive's safe-stop circuit
• LED bar graph indicator of residual leakage current level
• Fault memory
• TEST / RESET button
Insulation Resistance Monitor (IRM)
Designed for monitoring insulation resistance between system conductors and ground in ungrounded supply line power or line power with connection to
ground through a high impedance (such as IT systems). Two individually adjustable relays (N.O. or N.C.) allow separate setpoints for pre-warning and
alarm conditions.
• Integrated into the drive's safe-stop circuit
• LC display of insulation resistance
• Fault Memory
• INFO, TEST, and RESET buttons
IEC Emergency Stop with Pilz Safety Relay
Includes a redundant 4-wire emergency-stop pushbutton mounted on the front of the enclosure and a Pilz relay that monitors it in conjunction with the
drive's safe-stop circuit and the line power contactor located in the options cabinet.
3-34
Power Connections
Tap to Select
400 V
460 V
525 V
575 V
660 V
690 V
MG.33.U2.22 - VLT
section.
® is a registered Danfoss trademark
VLT ® Automation Drive FC 300
Instruction Manual High Power