Electrical Installation; Transformer Selection; Power Connections 12-Pulse Drives - Danfoss vlt fc 300 Instruction Manual

VLT
How to Install
Instruction Manual High Power
30 Ampere, Fuse-protected Terminals
•
3-phase power matching incoming AC line
voltage for powering auxiliary customer
3 3 equipment
•
Not available if two manual motor starters are
selected
•
Terminals are off when the incoming power to
the adjustable frequency drive is off.
•
Power for the fused protected terminals is
provided from the load side of any supplied
circuit breaker or disconnect switch.
24 V DC Power Supply
•
5 A, 120 W, 24 V DC
•
Protected against output over-current, overload,
short circuits, and over-temperature
•
For powering customer-supplied accessory
devices such as sensors, PLC I/O, contactors,
temperature probes, LEDs and/or other electronic
hardware
•
Diagnostics include a dry DC-ok contact, a green
DC-ok LED, and a red overload LED
External Temperature Monitoring
Designed for monitoring temperatures of external system
components, such as the motor windings and/or bearings.
Includes eight universal input modules plus two dedicated
thermistor input modules. All ten modules are integrated
into the adjustable frequency drive's safe-stop circuit and
can be monitored via a serial communication bus network
(requires the purchase of a separate module/bus coupler).
Universal inputs (8)
Signal types:
•
RTD inputs (including Pt100), 3-wire or 4-wire
•
Thermocouple
•
Analog current or analog voltage
Additional features:
•
One universal output, configurable for analog
voltage or analog current
•
Two output relays (N.O.)
•
Dual-line LC display and LED diagnostics
•
Sensor lead wire break, short-circuit, and incorrect
polarity detection
•
Interface set-up software
3-20 MG34Q222 - VLT
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20872-Danfoss-131H4490-VLT-Automation-VT-Drive-VFD-FC302-460V-25-HP.aspx
®
Automation Drive FC 300 12-Pulse
Dedicated thermistor inputs (2)
Features:
•
Each module is capable of monitoring up to six
thermistors in a series
•
Fault diagnostics for wire breakage or short-
circuits of sensor leads
•
ATEX/UL/CSA certification
•
A third thermistor input can be provided by the
PTC thermistor option card MCB 112, if necessary.

3.3 Electrical Installation

3.3.1 Transformer Selection

The adjustable frequency drive must be used with a 12-
pulse isolation transformer.

3.3.2 Power Connections 12-Pulse Drives

Cabling and Fusing
NOTE!
Cables General
All cabling must comply with national and local
regulations on cable cross-sections and ambient
temperature. UL applications require 167° F [75°C] copper
conductors. 167° F [75°C] and 194° F [90°C] copper
conductors are thermally acceptable for the adjustable
frequency drive to use in non-UL applications.
The power cable connections are situated as in Figure 3.21.
Dimensioning of cable cross-section must be done in
accordance with the current ratings and local legislation.
See 5.1 General Specifications for details.
For protection of the adjustable frequency drive, the
recommended fuses must be used or the unit must be
with built-in fuses. Recommended fuses can be seen in
3.3.13 Fuses . Always ensure that proper fusing is done
according to local regulations.
® is a registered Danfoss trademark