1.4.1 Programming on Automatic Motor Adaptation ( AMA)9
1.4.2 Programming on Automatic Motor Tuning (AMT)10
2
2
3
4
9
1.5 Parameter Overview
1.6 Troubleshooting
1.6.1 Warnings and Alarms15
1.7 Specifications
1.8 General Technical Data
1.9 Special Conditions
1.9.1 Derating for Ambient Temperature21
1.9.2 Derating for Low Air Pressure21
1.9.3 Derating for Running at Low Speeds21
1.10 Options
Index
11
15
16
18
21
22
23
MG02B902 - Rev. 2013-11-191
Quick Guide
VLT® Micro Drive FC 51 Quick Guide
11
1 Quick Guide
1.1 Safety
WARNING
HIGH VOLTAGE
Frequency
connected to AC mains input power. Failure to perform
installation, start-up, and maintenance by qualified
personnel could result in death or serious injury.
converters contain high voltage when
Installation, start-up, and maintenance must be
•
performed by qualified personnel only.
WARNING
UNINTENDED START
the frequency converter is connected to AC mains,
When
the motor may start at any time, causing risk of death,
serious injury, equipment, or property damage. The
motor can start by means of an external switch, a serial
bus command, an input reference signal from the LCP or
LOP, or after a cleared fault condition.
1.Disconnect the frequency converter from mains
whenever personal safety considerations make
it necessary to avoid unintended motor start.
2.Press [Off/Reset] on the LCP, before
programming parameters.
3.The frequency converter, motor, and any driven
equipment must be in operational readiness
when the frequency converter is connected to
AC mains.
WARNING
DISCHARGE TIME
frequency converter contains DC-link capacitors,
The
which can remain charged even when the frequency
converter is not powered. Failure to wait the specified
time after power has been removed before performing
service or repair work, could result in death or serious
injury.
1.Stop motor.
2.Disconnect AC mains, permanent magnet type
motors, and remote DC-link power supplies,
including battery back-ups, UPS, and DC-link
connections to other frequency converters.
3.Wait for the capacitors to discharge fully, before
performing any service or repair work. The
duration of waiting time is specified in
Table 1.1.
Leakage
Follow national and local codes regarding protective
earthing of equipment with a leakage current > 3,5 mA.
frequency converter technology implies high frequency
switching at high power. This generates a leakage current
in the ground connection. A fault current in the frequency
converter at the output power terminals might contain a
DC component which can charge the filter capacitors and
cause a transient ground current. The earth leakage
current depends on various system configurations
including RFI filtering, screened motor cables, and
frequency converter power.
EN/IEC61800-5-1 (Power Drive System Product Standard)
requires special care if the leakage current exceeds 3,5 mA.
Earth grounding must be reinforced in one of the
following ways:
See EN 60364-5-54 § 543.7 for further information.
Using RCDs
Where residual current devices (RCDs), also known as earth
leakage circuit breakers (ELCBs), are used, comply with the
following:
Motor Thermal Protection
Motor overload protection is possible by setting parameter
1-90 Motor Thermal Protection to [4] ETR trip. For the North
American market: Implemented ETR function provide class
20 motor overload protection, in accordance with NEC.
Installation at High Altitudes
For altitudes above 2.000 m, contact Danfoss regarding
PELV.
SizeMinimum waiting time [min]
M1, M2 and M34
M4 and M515
Table 1.1 Discharge Time
Current (>3.5 mA)
Earth ground wire of at least 10 mm2.
•
Two separate ground wires both complying with
•
the dimensioning rules.
1.Use RCDs of type B only which are capable of
detecting AC and DC currents.
2.Use RCDs with an inrush delay to prevent faults
due to transient earth currents.
3.Dimension RCDs according to the system configuration and environmental considerations.
2MG02B902 - Rev. 2013-11-19
Quick Guide
VLT® Micro Drive FC 51 Quick Guide
1.1.1 Safety Instructions
sure the frequency converter is properly
Make
•
connected to earth.
Do not remove mains connections, motor
•
connections or other power connections while
the frequency converter is connected to power.
Protect users against supply voltage.
•
Protect the motor against overloading according
•
to national and local regulations.
The earth leakage current exceeds 3.5 mA.
•
The [Off/Reset] key is not a safety switch. It does
•
not disconnect the frequency converter from
mains.
1.2 Introduction
1.2.1 Available Literature
NOTICE
This quick guide contains the basic information
necessary
converter.
for installing and running the frequency
Table 1.3 Approvals
The
frequency converter complies with UL508C thermal
memory retention requirements. For more information,
refer to the section Motor Thermal Protection in the DesignGuide.
1.2.2 IT Mains
NOTICE
IT Mains
Installation
Max. supply voltage allowed when connected to mains:
440 V.
As an option, Danfoss offers recommended line filters for
improved
1.2.3 Avoid Unintended Start
on isolated mains source, i.e. IT mains.
harmonics performance.
11
If more information is needed, the literature below can be
downloaded
VLT Micro Drive FC 51 Design GuideMG02K
VLT Micro Drive FC 51 Quick GuideMG02B
VLT Micro Drive FC 51 Programming GuideMG02C
VLT Micro Drive FC 51 LCP Mounting InstructionMI02A
VLT Micro Drive FC 51 De-coupling Plate Mounting
Instruction
VLT Micro Drive FC 51 Remote Mounting Kit
Mounting
VLT Micro Drive FC 51 DIN Rail Kit Mounting
Instruction
VLT Micro Drive FC 51 IP21 Kit Mounting
Instruction
VLT Micro Drive FC 51 Nema1 Kit Mounting
Instruction
Line Filter MCC 107 Installation InstructionMI02U
Table 1.2 Available Literature
from:
TitleLiterature
no.
MI02B
MI02C
Instruction
MI02D
MI02E
MI02F
While the frequency converter is connected to mains, the
motor
can be started/stopped using digital commands, bus
commands, references or via the LCP or LOP.
Disconnect the frequency converter from mains
•
whenever personal safety considerations make it
necessary to avoid unintended start of any
motors.
To avoid unintended start, always press [Off/
•
Reset] before changing parameters.
Equipment containing electrical components
not be disposed of together with domestic
must
waste.
It must be separately collected with electrical
and electronic waste according to local and
currently valid legislation.
MG02B902 - Rev. 2013-11-193
Quick Guide
VLT® Micro Drive FC 51 Quick Guide
11
1.3 Installation
1.3.1 Before Commencing Repair Work
1.Disconnect the FC 51 from mains (and external
supply, if present.)
DC
2.Wait for 4 min (M1, M2 and M3) and 15 min (M4
and M5) for discharge of the DC-link. See
Table 1.1.
3.Disconnect DC bus terminals and brake terminals
(if present).
4.Remove motor cable.
1.3.2 Side-by-Side Installation
The frequency converter can be mounted side-by-side for
IP20 rating units and requires 100 mm clearance above
and below for cooling. Refer to chapter 1.7 Specifications
for details on environmental ratings of the frequency
converter.
4MG02B902 - Rev. 2013-11-19
B
a A
a A
a A
a A
a A
C
C
CCC
b
B
b
B
b
B
b
B
b
Ø 7mm
M5
M4
M3
M2
M1
Ø 7mmØ 5.5mmØ 4.5mm
130BB321.11
Ø 4.5mm
Quick Guide
VLT® Micro Drive FC 51 Quick Guide
1.3.3 Mechanical Dimensions
A template for drilling can be found on the flap of the packaging.
protect the installation against electrical and fire hazard,
To
all branch circuits in an installation, switch gear, machines
etc., must be short-circuited and overcurrent protected
according to national/international regulations.
Short circuit protection
Danfoss recommends using the fuses mentioned in the
following tables to protect service personnel or other
equipment in case of an internal failure in the unit or
short-circuit on DC-link. The frequency converter provides
full short circuit protection in case of a short-circuit on the
motor or brake output.
Overcurrent protection
Provide overload protection to avoid overheating of the
cables in the installation. Overcurrent protection must
always be carried out according to national regulations.
Fuses must be designed for protection in a circuit capable
of supplying a maximum of 100,000 A
(symmetrical),
rms
480 V maximum.
Non UL compliance
If UL/cUL is not to be complied with, Danfoss recommends
using the fuses mentioned in Table 1.5, which ensures
compliance with EN50178/IEC61800-5-1:
In case of malfunction, not following the fuse recommendation may result in damage to the frequency converter
and the installation.
The frequency converter is designed to operate all
standard
The frequency converter is designed to accept mains/
motor cables with a maximum cross-section of 4 mm2/10
AWG (M1, M2 and M3) and maximum cross-section 16
mm2/6 AWG (M4 and M5).
3-phased asynchronous motors.
Use a shielded/armoured motor cable to comply
•
with EMC emission specifications, and connect
this cable to both the decoupling plate and the
motor metal.
Keep motor cable as short as possible to reduce
•
the noise level and leakage currents.
For further details on mounting of the
•
decoupling plate, see VLT Micro FC 51 Decoupling
Mounting Plate Instructions.
Also see EMC-Correct Installation in the Design
•
Guide.
1.Mount the ground wires to PE terminal.
2.Connect motor to terminals U, V and W.
3.Mount mains supply to terminals L1/L, L2 and
L3/N (3-phase) or L1/L and L3/N (single-phase)
and tighten.
Illustration 1.3 Removing Terminal Cover
Switch 1
Switch 2
Switch 3No function
Switch 4
*=default setting
Table 1.6 Settings for S200 Switches 1-4
*Off=PNP terminals 29
On=NPN terminals 29
*Off=PNP terminal 18, 19, 27 and 33
On=NPN terminal 18, 19, 27 and 33
*Off=Terminal 53 0-10 V
On=Terminal 53 0/4-20 mA
11
Illustration 1.2 Mounting of Ground Cable, Mains and Motor
Wires
1.3.5 Control Terminals
All control cable terminals are located underneath the
terminal cover in front of the frequency converter. Remove
the terminal cover using a screwdriver.
NOTICE
See back of terminal cover for outlines of control
terminals
Do not operate switches with power on the frequency
converter.
6-19 Terminal 53 Mode must be set according to Switch 4
position.
and switches.
MG02B902 - Rev. 2013-11-197
Illustration 1.4 S200 Switches 1-4
Illustration 1.5
converter. Applying Start (terminal 18) and an analog
reference (terminal 53 or 60) make the frequency converter
run.
shows all control terminals of the frequency
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