Danfoss VLT FC 100 Operating Instructions

3.3 Field Installation of Options
Space Heaters and Thermostat
Mounted on the cabinet interior of frame size F10-F14
frequency converters, space heaters controlled via
automatic thermostat help control humidity inside the
enclosure, extending the lifetime of frequency converter
components in damp environments. The thermostat
default settings turn on the heaters at 10°øC (50° F) and
turn them off at 15.6° C (60°øF).
Cabinet Light with Power Outlet
A light mounted on the cabinet interior of frame size F10-
F14 frequency converters increase visibility during servicing
and maintenance. The housing the 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 & Outlet and/or the Space Heaters &
Thermostat are installed Transformer T1 requires the taps
to be set to the proper input voltage. A 380-480/500 V
unit is initially set to the 525 V tap and a 525-690 V unit is
set to the 690 V tap to insure that no over-voltage of
secondary equipment occurs if the tap is not changed
before power is applied. See Table 3.2 to set the proper
tap at terminal T1 located in the rectifier cabinet. For
location in the frequency converter, see illustration of
rectifier in Illustration 3.21.
Input Voltage Range [V]
Tap to Select [V]
380-440 400
441-490 460
491-550 525
551-625 575
626-660 660
661-690 690
NAMUR Terminals
NAMUR is an international association of automation
technology users in the process industries, primarily
chemical and pharmaceutical industries in Germany.
Selection of this option provides terminals organized and
labeled to the specifications of the NAMUR standard for
frequency converter input and output terminals. This
requires MCB 112 PTC Thermistor Card and MCB 113
Extended Relay Card.
RCD (Residual Current Device)
Uses the core balance method to monitor ground fault
currents in grounded and high-resistance grounded
systems (TN and TT systems in IEC terminology). There is a
pre-warning (50% of main alarm set-point) and a main
alarm set-point. Associated with each set-point is an SPDT
alarm relay for external use. Requires an external “window-
type” current transformer (supplied and installed by
customer).
•
Integrated into the frequency converter’s safe-
stop circuit
•
IEC 60755 Type B device monitors AC, pulsed DC,
and pure DC ground fault currents
•
LED bar graph indicator of the ground fault
current level from 10–100% of the set-point
•
Fault memory
•
TEST/RESET button
Insulation Resistance Monitor (IRM)
Monitors the insulation resistance in ungrounded systems
(IT systems in IEC terminology) between the system phase
conductors and ground. There is an ohmic pre-warning
and a main alarm set-point for the insulation level.
Associated with each set-point is an SPDT alarm relay for
external use.
NOTE
Only one insulation resistance monitor can be connected
to each ungrounded (IT) system.
•
Integrated into the frequency converter’s safe-
stop circuit
•
LCD display of the ohmic value of the insulation
resistance
•
Fault Memory
•
[Info], [Test], and [Reset] keys
Manual Motor Starters
Provide 3-phase power for electric blowers often required
for larger motors. Power for the starters is provided from
the load side of any supplied contactor, circuit breaker, or
disconnect switch. Power is fused before each motor
starter, and is off when the incoming power to the
frequency converter is off. Up to two starters are allowed
(one if a 30 A, fuse-protected circuit is ordered). Integrated
into the frequency converter’s safe-stop circuit.
Unit features include:
•
Operation switch (on/off)
•
Short-circuit and overload protection with test
function
•
Manual reset function
30 Ampere, Fuse-Protected Terminals
•
3-phase power matching incoming mains voltage
for powering auxiliary customer equipment
•
Not available if two manual motor starters are
selected
•
Terminals are off when the incoming power to
the frequency converter is off
•
Power for the fused protected terminals is
provided from the load side of any supplied
circuit breaker or disconnect switch.
How to Install
VLT
®
Automation Drive FC 300 12-Pulse
Operating Instructions High Power
26 MG34Q202 - VLT
®
is a registered Danfoss trademark
3
3

Danfoss VLT FC 100 Specifications

General

Brand	Danfoss
Model	VLT FC 100
Category	DC Drives
Language	English