Danfoss VLT Midi Drive FC 280 User manual

MAKING MODERN LIVING POSSIBLE
Operating Instructions
VLT®Midi Drive FC 280
vlt-drives.danfoss.com

Contents
1 Introduction 3
1.1 Purpose of the Manual 3
1.2 Additional Resources 3
1.3 Document and Software Version 3
1.4 Product Overview 3
1.5 Approvals and Certications 4
1.6 Disposal 4
2 Safety 5
2.1 Safety Symbols 5
2.2 Qualied Personnel 5
2.3 Safety Precautions 5
3 Mechanical Installation 7
3.1 Unpacking 7
3.2 Installation Environment 7
3.3 Mounting 7
4 Electrical Installation 10
4.1 Safety Instructions 10
4.2 EMC-compliant Installation 10
4.3 Grounding 10
4.4 Wiring Schematic 12
4.5 Access 14
4.6 Motor Connection 14
4.7 AC Mains Connection 15
4.8 Control Wiring 16
4.9 Installation Checklist 19
5 Commissioning 20
5.1 Safety Instructions 20
5.2 Applying Power 20
5.3 Local Control Panel Operation 20
5.4 Basic Programming 28
5.5 Checking Motor Rotation 30
5.6 Checking Encoder Rotation 30
5.7 Local-control Test 30
5.8 System Start-up 31
5.9 STO Commissioning 31
6 Safe Torque O (STO) 32
Contents Operating Instructions
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6.1 Safety Precautions for STO 33
6.2 Safe Torque O Installation 33
6.3 STO Commissioning 34
6.4 Maintenance and Service for STO 35
6.5 STO Technical Data 37
7 Application Examples 38
8 Maintenance, Diagnostics, and Troubleshooting 41
8.1 Maintenance and Service 41
8.2 Warning and Alarm Types 41
8.3 Warning and Alarm Display 41
8.4 List of Warnings and Alarms 43
8.5 Troubleshooting 45
9 Specications 47
9.1 Electrical Data 47
9.2 Mains Supply (3-phase) 48
9.3 Motor Output and Motor Data 48
9.4 Ambient Conditions 48
9.5 Cable Specications 49
9.6 Control Input/Output and Control Data 49
9.7 Connection Tightening Torques 52
9.8 Fuses and Circuit Breakers 52
9.9 Enclosure Sizes, Power Ratings, and Dimensions 53
10 Appendix 54
10.1 Symbols, Abbreviations, and Conventions 54
10.2 Parameter Menu Structure 54
Index 60
Contents VLT®Midi Drive FC 280
2 Danfoss A/S © 11/2015 All rights reserved. MG07A102

1 Introduction
1.1 Purpose of the Manual
These operating instructions provide information for safe
installation and commissioning of the VLT®Midi Drive FC
280 frequency converter.
The operating instructions are intended for use by
qualied personnel.
To use the frequency converter safely and professionally,
read and follow the operating instructions. Pay particular
attention to the safety instructions and general warnings.
Always keep these operating instructions with the
frequency converter.
VLT®is a registered trademark.
1.2 Additional Resources
Resources available to understand advanced frequency
converter functions and programming:
•VLT® Midi Drive FC 280 Design Guide.
•VLT® Midi Drive FC 280 Programming Guide.
Supplementary publications and manuals are available
from Danfoss. See vlt-drives.danfoss.com/Support/Technical-
Documentation/ for listings.
1.3 Document and Software Version
This manual is regularly reviewed and updated. All
suggestions for improvement are welcome. Table 1.1 shows
the document version and the corresponding software
version.
Edition Remarks Software version
MG07A1 The rst edition of this manual 1.0
Table 1.1 Document and Software Version
1.4 Product Overview
1.4.1 Intended Use
The frequency converter is an electronic motor controller
intended for:
•Regulation of motor speed in response to system
feedback or to remote commands from external
controllers. A power drive system consists of the
frequency converter, the motor, and equipment
driven by the motor.
•System and motor status surveillance.
The frequency converter can also be used for motor
protection.
Depending on conguration, the frequency converter can
be used in standalone applications or form part of a larger
appliance or installation.
The frequency converter is allowed for use in residential,
industrial, and commercial environments in accordance
with local laws and standards.
NOTICE
In a residential environment this product can cause radio
interference, in which case supplementary mitigation
measures can be required.
Foreseeable misuse
Do not use the frequency converter in applications which
are non-compliant with specied operating conditions and
environments. Ensure compliance with the conditions
specied in chapter 9 Specications.
1.4.2 Block Diagram of the Frequency
Converter
Illustration 1.1 is a block diagram of the internal
components of the frequency converter. See Table 1.2 for
their functions.
M
7
63
4
5
21
8
130BE200.11
Illustration 1.1 Frequency Converter Block Diagram
Area Component Functions
1 Mains input •AC mains power supply to the
frequency converter.
2Rectier
•The rectier bridge converts
the AC input to DC current to
supply inverter power.
3 DC bus •Intermediate DC-bus circuit
handles the DC current.
Introduction Operating Instructions
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11

Area Component Functions
4 DC reactor
•Filters the intermediate DC
circuit current.
•Provides line transient
protection.
•Reduces the root mean square
(RMS) current.
•Raises the power factor
reected back to the line.
•Reduces harmonics on the AC
input.
5 Capacitor bank
•Stores the DC power.
•Provides ride-through
protection for short power
losses.
6 Inverter
•Converts the DC into a
controlled PWM AC waveform
for a controlled variable
output to the motor.
7 Output to motor •Regulated 3-phase output
power to the motor.
8 Control circuitry
•Input power, internal
processing, output, and motor
current are monitored to
provide ecient operation
and control.
•User interface and external
commands are monitored and
performed.
•Status output and control can
be provided.
Table 1.2 Legend to Illustration 1.1
1.4.3 Enclosure Sizes and Power Ratings
For enclosure sizes and power ratings of the frequency
converters, refer to chapter 9.9 Enclosure Sizes, Power
Ratings, and Dimensions.
1.4.4 Safe Torque O (STO)
The VLT®Midi Drive FC 280 frequency converter supports
Safe Torque O (STO). See chapter 9.9 Enclosure Sizes, Power
Ratings, and Dimensions for details about the installation,
commissioning, maintenance, and technical data of STO.
1.5 Approvals and Certications
For compliance with the European Agreement concerning
International Carriage of Dangerous Goods by Inland
Waterways (ADN), refer to ADN-compliant Installation in the
VLT
®
Midi Drive FC 280 Design Guide.
Applied standards and compliance for STO
Use of STO on terminals 37 and 38 requires that the user
satises all provisions for safety including relevant laws,
regulations, and guidelines. The integrated STO function
complies with the following standards:
•IEC/EN 61508: 2010 SIL 2
•IEC/EN 61800-5-2: 2007 SIL2
•IEC/EN 62061: 2012 SILCL of SIL2
•EN ISO 13849-1: 2008 Category 3 PL d
1.6 Disposal
Do not dispose of equipment containing
electrical components together with
domestic waste.
Collect it separately in accordance with
local and currently valid legislation.
Introduction VLT®Midi Drive FC 280
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2 Safety
2.1 Safety Symbols
The following symbols are used in this document:
WARNING
Indicates a potentially hazardous situation that could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that could
result in minor or moderate injury. It can also be used to
alert against unsafe practices.
NOTICE
Indicates important information, including situations that
can result in damage to equipment or property.
2.2 Qualied Personnel
Correct and reliable transport, storage, installation,
operation, and maintenance are required for the trouble-
free and safe operation of the frequency converter. Only
qualied personnel are allowed to install or operate this
equipment.
Qualied personnel are dened as trained sta, who are
authorized to install, commission, and maintain equipment,
systems, and circuits in accordance with pertinent laws and
regulations. Also, the personnel must be familiar with the
instructions and safety measures described in this guide.
2.3 Safety Precautions
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualied personnel can result in death or serious
injury.
•Only qualied personnel must perform instal-
lation, start-up, and maintenance.
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor may start at any
time. Unintended start during programming, service, or
repair work can result in death, serious injury, or
property damage. The motor can start with an external
switch, a eldbus command, an input reference signal
from the LCP, via remote operation using MCT 10 Set-up
Software, or after a cleared fault condition.
To prevent unintended motor start:
•Disconnect the frequency converter from the
mains.
•Press [O/Reset] on the LCP before
programming parameters.
•Completely wire and assemble the frequency
converter, motor, and any driven equipment
before connecting the frequency converter to
AC mains, DC supply, or load sharing.
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors,
which can remain charged even when the frequency
converter is not powered. High voltage can be present
even when the warning LED indicator lights are o.
Failure to wait the specied time after power has been
removed before performing service or repair work can
result in death or serious injury.
•Stop the motor.
•Disconnect AC mains and remote DC-link
supplies, including battery back-ups, UPS, and
DC-link connections to other frequency
converters.
•Disconnect or lock PM motor.
•Wait for the capacitors to discharge fully. The
minimum waiting time is specied in Table 2.1.
•Before performing any service or repair work,
use an appropriate voltage measuring device to
make sure that the capacitors are fully
discharged.
Safety Operating Instructions
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Voltage [V] Power range
[kW (hp)]
Minimum waiting time
(minutes)
200–240 0.37–3.7 (0.5–5) 4
380–480 0.37–7.5 (0.5–10) 4
11–22 (15–30) 15
Table 2.1 Discharge Time
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly can result in death or
serious injury.
•Ensure the correct grounding of the equipment
by a certied electrical installer.
WARNING
EQUIPMENT HAZARD
Contact with rotating shafts and electrical equipment
can result in death or serious injury.
•Ensure that only trained and qualied personnel
perform installation, start-up, and maintenance.
•Ensure that electrical work conforms to national
and local electrical codes.
•Follow the procedures in this guide.
CAUTION
INTERNAL FAILURE HAZARD
An internal failure in the frequency converter can result
in serious injury when the frequency converter is not
properly closed.
•Ensure that all safety covers are in place and
securely fastened before applying power.
Safety VLT®Midi Drive FC 280
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3 Mechanical Installation
3.1 Unpacking
3.1.1 Items Supplied
Items supplied may vary according to product congu-
ration.
•Make sure the items supplied and the information
on the nameplate correspond to the order conr-
mation.
•Check the packaging and the frequency converter
visually for damage caused by inappropriate
handling during shipment. File any claim for
damage with the carrier. Retain damaged parts
for clarication.
130BE616.11
CAUTION:
WARNING:
SEE MANUAL
STORED CHARGE DO NOT TOUCH UNTILL 4 MIN. AFTER
DISCONNECTION
RISK OF ELECTRIC SHOCK-DUAL SUPPLY DISCONNECT MAINS
AND LOADSHARING BEFORE SERVICE
1
7
10
9
8
2
3
4
6
12
5
11
1 Type code
2 Order number
3 Power rating
4Input voltage, frequency, and current (at low/high
voltages)
5Output voltage, frequency, and current (at low/high
voltages)
6 Enclosure type and IP rating
7 Disposal
8 CE mark
9 Serial number
10 Functional safety
11 Rated ambient temperature
12 Discharge time (Warning)
Illustration 3.1 Product Nameplate (Example)
NOTICE
Do not remove the nameplate from the frequency
converter (loss of warranty).
3.1.2 Storage
Ensure that requirements for storage are fullled. Refer to
chapter 9.4 Ambient Conditions for further details.
3.2 Installation Environment
NOTICE
In environments with airborne liquids, particles, or
corrosive gases, ensure that the IP/Type rating of the
equipment matches the installation environment. Failure
to meet requirements for ambient conditions can reduce
lifetime of the frequency converter. Ensure that
requirements for air humidity, temperature, and altitude
are met.
Vibration and shock
The frequency converter complies with requirements for
units mounted on the walls and oors of production
premises, as well as in panels bolted to walls or oors.
For detailed ambient conditions specications, refer to
chapter 9.4 Ambient Conditions.
3.3 Mounting
NOTICE
Improper mounting can result in overheating and
reduced performance.
Cooling
•Ensure 100 mm of top and bottom clearance for
air cooling.
Lifting
•To determine a safe lifting method, check the
weight of the unit, see chapter 9.9 Enclosure Sizes,
Power Ratings, and Dimensions.
•Ensure that the lifting device is suitable for the
task.
•If necessary, plan for a hoist, crane, or forklift with
the appropriate rating to move the unit.
•For lifting, use hoist rings on the unit, when
provided.
Mechanical Installation Operating Instructions
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Mounting
To adapt to the mounting holes of FC 280, contact the
local Danfoss supplier to order a separate backplate.
To mount the frequency converter:
1. Ensure that the strength of the mounting location
supports the unit weight. The frequency
converter allows side-by-side installation.
2. Locate the unit as close to the motor as possible.
Keep the motor cables as short as possible.
3. Mount the unit vertically to a solid at surface or
to the optional backplate to provide cooling
airow.
4. When provided, use the slotted mounting holes
on the unit for wall mounting.
C
a
b
130BA648.12
f
e
B
A
a
d
e
b
c
Illustration 3.2 Top and Bottom Mounting Holes (See
chapter 9.9 Enclosure Sizes, Power Ratings, and Dimensions)
3.3.1 Side-by-side Installation
Side-by-side installation
All FC 280 units can be installed side-by-side in vertical or
horizontal position. The units do not require extra
ventilation on the side.
130BE615.10
Illustration 3.3 Side-by-side Installation
CAUTION
RISK OF OVERHEATING
If IP21 solution is used, mounting the units side-by-side
could lead to overheating and unit damages.
•Avoid mounting the units side-by-side if IP21
solution is used.
3.3.2 Bus Decoupling Kit
The bus decoupling kit ensures mechanical xation and
electrical screening of cables for the following control
cassette variants:
•Control cassette with PROFIBUS.
•Control cassette with PROFINET.
•Control cassette with CANopen.
•Control cassette with Ethernet.
Each bus decoupling kit contains 1 horizontal decoupling
plate and 1 vertical decoupling plate. Mounting the
vertical decoupling plate is optional. The vertical
decoupling plate provides better mechanical support for
PROFINET and Ethernet connectors and cables.
Mechanical Installation VLT®Midi Drive FC 280
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3.3.3 Mounting
To mount the bus decoupling kit:
1. Place the horizontal decoupling plate on the
control cassette that is mounted on the
frequency converter, and fasten the plate using 2
screws, as shown in Illustration 3.4. Tightening
torque 0.7–1.0 Nm.
2. Optional: Mount the vertical decoupling plate as
follows:
2a Remove the 2 mechanical springs and 2
metal clamps from the horizontal plate.
2b Mount the mechanical springs and
metal clamps on the vertical plate.
2c Fasten the plate with 2 screws, as shown
in Illustration 3.5. Tightening torque 0.7–
1.0 Nm.
NOTICE
If the IP21 top cover is used, do not mount the vertical
decoupling plate, because its height aects the proper
installation of the IP21 top cover.
1
2
3
130BE480.10
1 Mechanical springs
2 Metal clamps
3 Screws
Illustration 3.4 Fasten the Horizontal Decoupling Plate with
Screws
130BE481.10
1
2
1 Vertical decoupling plate
2 Screws
Illustration 3.5 Fasten the Vertical Decoupling Plate with
Screws
Both Illustration 3.4 and Illustration 3.5 show PROFINET
sockets. The actual sockets are based on the type of the
control cassette mounted on the frequency converter.
3. Push the PROFIBUS/PROFINET/CANopen/Ethernet
cable connectors into the sockets in the control
cassette.
4. 4a Place the PROFIBUS/CANopen cables
between the spring-loaded metal
clamps to establish mechanical xation
and electrical contact between the
screened sections of the cables and the
clamps.
4b Place the PROFINET/Ethernet cables
between the spring-loaded metal
clamps to establish mechanical xation
between the cables and the clamps.
Mechanical Installation Operating Instructions
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33

4 Electrical Installation
4.1 Safety Instructions
See chapter 2 Safety for general safety instructions.
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables of dierent
frequency converters that run together can charge
equipment capacitors even with the equipment turned
o and locked out. Failure to run output motor cables
separately or use screened cables could result in death
or serious injury.
•Run output motor cables separately.
•Use screened cables.
•Lock out all the frequency converters simulta-
neously.
WARNING
SHOCK HAZARD
The frequency converter can cause a DC current in the
PE conductor and hence result in death or serious injury.
•When a residual current-operated protective
device (RCD) is used for protection against
electrical shock, only an RCD of Type B is
permitted on the supply side.
Failure to follow the recommendation means that the
RCD cannot provide the intended protection.
Overcurrent protection
•Extra protective equipment such as short-circuit
protection or motor thermal protection between
frequency converter and motor is required for
applications with multiple motors.
•Input fusing is required to provide short-circuit
and overcurrent protection. If fuses are not
factory-supplied, the installer must provide them.
See maximum fuse ratings in chapter 9.8 Fuses
and Circuit Breakers.
Wire type and ratings
•All wiring must comply with local and national
regulations regarding cross-section and ambient
temperature requirements.
•Power connection wire recommendation:
minimum 75 °C rated copper wire.
See chapter 9.5 Cable Specications for recommended wire
sizes and types.
4.2 EMC-compliant Installation
To obtain an EMC-compliant installation, follow the
instructions provided in chapter 4.3 Grounding,
chapter 4.4 Wiring Schematic, chapter 4.6 Motor Connection,
and chapter 4.8 Control Wiring.
4.3 Grounding
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly could result in death or
serious injury.
•Ensure the correct grounding of the equipment
by a certied electrical installer.
For electrical safety
•Ground the frequency converter in accordance
with applicable standards and directives.
•Use a dedicated ground wire for input power,
motor power, and control wiring.
•Do not ground one frequency converter to
another in a daisy chain fashion (see
Illustration 4.1).
•Keep the ground wire connections as short as
possible.
•Follow motor manufacturer wiring requirements.
•Minimum cable cross-section: 10 mm2(7 AWG)
(or 2 rated ground wires terminated separately).
Electrical Installation VLT®Midi Drive FC 280
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130BC500.10
FC 1
FC 1
FC 2
FC 2
FC 3
FC 3
PE
PE
Illustration 4.1 Grounding Principle
For EMC-compliant installation
•Establish electrical contact between the cable
screen and the frequency converter enclosure by
using metal cable glands or by using the clamps
provided on the equipment (see chapter 4.6 Motor
Connection).
•Use high-strand wire to reduce electrical
interference.
•Do not use pigtails.
NOTICE
POTENTIAL EQUALISATION
Risk of electrical interference, when the ground potential
between the frequency converter and the control system
is dierent. Install equalizing cables between the system
components. Recommended cable cross-section: 16 mm2
(5 AWG).
Electrical Installation Operating Instructions
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4.4 Wiring Schematic
This section describes how to wire the frequency converter.
130BE202.11
3-phase
power
input
Switch Mode
Power Supply
Motor
Analog Output
Interface
(PNP) = Source
(NPN) = Sink
ON=Terminated
OFF=Open
Brake
resistor
91 (L1)
92 (L2)
93 (L3)
PE
50 (+10 V OUT)
53 (A IN) **
54 (A IN)
55 (COM A IN)
0/4-20 mA
12 (+24 V OUT)
13 (+24 V OUT)
18 (D IN)
10 V DC
15 mA 100 mA
+ - + -
(U) 96
(V) 97
(W) 98
(PE) 99
(A OUT) 42
(P RS485) 68
(N RS485) 69
(COM RS485) 61
0V
5V
S801
0/4-20 mA
RS485
RS485
03
+10 V DC
0-10 V DC
24 V DC
02
01
24 V (NPN)
0 V (PNP)
0 V (PNP)
24 V (NPN)
19 (D IN)
24 V (NPN)
0 V (PNP)
27 (D IN/OUT)
24 V
0 V
0 V (PNP)
24 V (NPN)
29 (D IN)
24 V (NPN)
0 V (PNP)
0 V (PNP)
24 V (NPN)
33 (D IN)
32 (D IN)
38 (D IN)
37 (D IN)****
95
P 5-00
21
ON
(+DC/R+) 89
(-BR) 81
0-10 V DC
(-DC) 88
RFI
0 V
250 V AC, 3 A
Relay 1
*
***
Illustration 4.2 Basic Wiring Schematic Drawing
A=Analog, D=Digital
* Built-in brake chopper is only available on 3-phase units.
** Terminal 53 can also be used as digital input.
*** Switch S801 (bus terminal) can be used to enable termination on the RS485 port (terminals 68 and 69).
**** Refer to chapter 6 Safe Torque O (STO) for the correct STO wiring.
Electrical Installation VLT®Midi Drive FC 280
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130BD391.11
1
2
3
4
5
6
78
910
Reset Auto
On
Hand
On
OK
Back
Menu
Status Quick
Menu
Main
Menu
PE
U
V
W
L1
L2
L3
PE
1 PLC 6 Minimum 200 mm (7.9 in) between control cables, motor and mains.
2 Frequency converter 7 Motor, 3-phase and PE
3 Output contactor (generally not recommended) 8 Mains, single-phase, 3-phase and reinforced PE
4 Grounding rail (PE) 9 Control wiring
5 Cable shielding (stripped) 10 Equalizing minimum 16 mm2(6 AWG)
Illustration 4.3 Typical Electrical Connection
Electrical Installation Operating Instructions
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4.5 Access
•Remove the cover plate with a screwdriver. See
Illustration 4.4.
130BC504.11
Illustration 4.4 Control Wiring Access
4.6 Motor Connection
4.6.1 Motor Connection
WARNING
INDUCED VOLTAGE
Induced voltage from output motor cables that run
together can charge equipment capacitors, even when
the equipment is turned o and locked out. Failure to
run output motor cables separately or use screened
cables could result in death or serious injury.
•Run output motor cables separately.
•Use screened cables.
•Comply with local and national electrical codes
for cable sizes. For maximum cable sizes, see
chapter 9.1 Electrical Data.
•Follow motor manufacturer wiring requirements.
•Motor wiring knockouts or access panels are
provided at the base of IP21 (NEMA1/12) units.
•Do not wire a starting or pole-changing device
(for example, Dahlander motor or slip ring
induction motor) between the frequency
converter and the motor.
Procedure
1. Strip a section of the outer cable insulation.
2. Position the stripped cable under the cable clamp
to establish mechanical xation and electrical
contact between the cable screen and ground.
3. Connect the ground cable to the nearest
grounding terminal in accordance with the
grounding instructions provided in
chapter 4.3 Grounding. See Illustration 4.5.
4. Connect the 3-phase motor wiring to terminals
96 (U), 97 (V), and 98 (W), as shown in
Illustration 4.5.
5. Tighten the terminals in accordance with the
information provided in chapter 9.7 Connection
Tightening Torques.
130BD531.10
U
VW
96
97
98
Illustration 4.5 Motor Connection
The mains, motor, and grounding connection for single-
phase and 3-phase frequency converters are shown in
Illustration 4.6 and Illustration 4.7 respectively. Actual
congurations vary with unit types and optional
equipment.
Electrical Installation VLT®Midi Drive FC 280
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130BE232.10
Illustration 4.6 Mains, Motor, and Grounding Connection for
Single-phase Units
130BE231.10
Illustration 4.7 Mains, Motor, and Grounding Connection for 3-
phase Units
4.7 AC Mains Connection
4.7.1 AC Mains Connection
•Size the wiring based on the input current of the
frequency converter. For maximum wire sizes, see
chapter 9.1 Electrical Data.
•Comply with local and national electrical codes
for cable sizes.
Procedure
1. Connect the AC input power cables to terminals
N and L for single-phase units (see
Illustration 4.6), or to terminals L1, L2, and L3 for
3-phase units (see Illustration 4.7).
2. Depending on the conguration of the
equipment, connect the input power to the
mains input terminals or the input disconnect.
3. Ground the cable in accordance with the
grounding instructions in chapter 4.3 Grounding.
4. When supplied from an isolated mains source (IT
mains or oating delta) or TT/TN-S mains with a
grounded leg (grounded delta), ensure that the
RFI lter screw is removed, to avoid damage to
the intermediate circuit and reduce ground
capacity currents in accordance with IEC 61800-3.
Electrical Installation Operating Instructions
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4.8 Control Wiring
4.8.1 Control Terminal Types
Illustration 4.8 shows the removable frequency converter
connectors. Terminal functions and default settings are
summarized in Table 4.1 and Table 4.2.
130BE212.10
1 2
3
Illustration 4.8 Control Terminal Locations
130BE214.10
37 38 12 13 18 19 27 29 32 33 61
42 53 54 50 55
68 69
1
3
2
Illustration 4.9 Terminal Numbers
See chapter 9.6 Control Input/Output and Control Data for
terminal ratings details.
Terminal Parameter Default
setting Description
Digital I/O, Pulse I/O, Encoder
12, 13 – +24 V DC
24 V DC supply
voltage.
Maximum
output current is
100 mA for all
24 V loads.
18
Parameter 5-10 Ter
minal 18 Digital
Input
[8] Start
Digital inputs.
19
Parameter 5-11 Ter
minal 19 Digital
Input
[10]
Reversing
Terminal Parameter Default
setting Description
27
Parameter 5-12 Ter
minal 27 Digital
Input
parameter 5-30 Ter
minal 27 Digital
Output
DI [2] Coast
inverse
DO [0] No
operation
Selectable for
either digital
input, digital
output, or pulse
output. The
default setting is
digital input.
29
Parameter 5-13 Ter
minal 29 Digital
Input
[14] Jog Digital input.
32
Parameter 5-14 Ter
minal 32 Digital
Input
[0] No
operation
Digital input, 24
V encoder.
Terminal 33 can
be used for
pulse input.
33
Parameter 5-15 Ter
minal 33 Digital
Input
[16] Preset ref
bit 0
37, 38 – STO Functional safety
inputs.
Analog inputs/outputs
42
Parameter 6-91 Ter
minal 42 Analog
Output
[0] No
operation
Programmable
analog output.
The analog
signal is 0–20
mA or 4–20 mA
at a maximum
of 500 Ω. Can
also be
congured as
digital outputs.
50 – +10 V DC
10 V DC analog
supply voltage.
15 mA
maximum
commonly used
for potenti-
ometer or
thermistor.
53 6-1* parameter
group –
Analog input.
Only voltage
mode is
supported. It can
also be used as
digital input.
54 6-2* parameter
group –
Analog input.
Selectable
between voltage
or current mode.
55 –
–
Common for
analog input.
Table 4.1 Terminal Descriptions - Digital Inputs/Outpus,
Analog Input/Outputs
Electrical Installation VLT®Midi Drive FC 280
16 Danfoss A/S © 11/2015 All rights reserved. MG07A102
44

Terminal Parameter Default
setting Description
Serial communication
61 – –
Integrated RC-
lter for cable
screen. ONLY for
connecting the
screen when
experiencing
EMC problems.
68 (+) 8-3* parameter
group –
RS485 interface.
A control card
switch is
provided for
termination
resistance.
69 (-) 8-3* parameter
group –
Relays
01, 02, 03 5-40 [9] Alarm
Form C relay
output. These
relays are in
various locations
depending upon
the frequency
converter cong-
uration and size.
Usable for AC or
DC voltage and
resistive or
inductive loads.
Table 4.2 Terminal Descriptions - Serial Communication
4.8.2 Wiring to Control Terminals
Control terminal connectors can be unplugged from the
frequency converter for ease of installation, as shown in
Illustration 4.8.
For details about STO wiring, refer to chapter 6 Safe Torque
O (STO).
NOTICE
Keep control cables as short as possible and separate
them from high power cables to minimize interference.
1. Loosen the screws for the terminals.
2. Insert sleeved control cables into the slots.
3. Fasten the screws for the terminals.
4. Ensure that the contact is rmly established and
not loose. Loose control wiring can be the source
of equipment faults or less than optimal
operation.
See chapter 9.5 Cable Specications for control terminal
cable sizes and chapter 7 Application Examples for typical
control cable connections.
4.8.3 Enabling Motor Operation
(Terminal 27)
A jumper wire is required between terminal 12 (or 13) and
terminal 27 for the frequency converter to operate when
using factory default programming values.
•Digital input terminal 27 is designed to receive 24
V DC external interlock command.
•When no interlock device is used, wire a jumper
between control terminal 12 (recommended) or
13 to terminal 27. The jumper provides an
internal 24 V signal on terminal 27.
•Only for GLCP: When the status line at the
bottom of the LCP reads AUTO REMOTE COAST, it
indicates that the unit is ready to operate but is
missing an input signal on terminal 27.
NOTICE
UNABLE TO START
The frequency converter cannot operate without a signal
on terminal 27, unless terminal 27 is reprogrammed.
4.8.4 Mechanical Brake Control
In hoisting/lowering applications, it is necessary to
control an electro-mechanical brake.
•Control the brake using any relay output or
digital output (terminal 27).
•Keep the output closed (voltage-free) as long as
the frequency converter is unable to keep the
motor at standstill, for example due to the load
being too heavy.
•Select [32] Mechanical brake control in parameter
group 5-4* Relays for applications with an electro-
mechanical brake.
•The brake is released when the motor current
exceeds the preset value in
parameter 2-20 Release Brake Current.
•The brake is engaged when the output frequency
is less than the frequency set in
parameter 2-22 Activate Brake Speed [Hz], and only
if the frequency converter carries out a stop
command.
If the frequency converter is in alarm mode or in an
overvoltage situation, the mechanical brake immediately
closes.
The frequency converter is not a safety device. It is the
responsibility of the system designer to integrate safety
devices according to relevant national crane/lift
regulations.
Electrical Installation Operating Instructions
MG07A102 Danfoss A/S © 11/2015 All rights reserved. 17
44

130BE201.11
L1(N) L2(L) L3
U V W
02 01
A1
A2
Frequency converter Output
relay
Command circuit
220 V AC
Mechanical
brake
ShaftMotor
Freewheeling
diode
Brake power circuit
380 V AC
Output
contactor
input
Illustration 4.10 Connecting the Mechanical Brake to the
Frequency Converter
4.8.5 RS485 Serial Communication
Connect RS485 serial communication wiring to terminals
(+)68 and (-)69.
•Screened serial communication cable is
recommended.
•See chapter 4.3 Grounding for proper grounding.
61
68
69
+
130BB489.10
RS-485
Illustration 4.11 Serial Communication Wiring Diagram
For basic serial communication set-up, select the following:
1. Protocol type in parameter 8-30 Protocol.
2. Frequency converter address in
parameter 8-31 Address.
3. Baud rate in parameter 8-32 Baud Rate.
•Two communication protocols are internal to the
frequency converter. Follow motor manufacturer
wiring requirements.
-Danfoss FC
-Modbus RTU
•Functions can be programmed remotely using
the protocol software and RS485 connection, or
in parameter group 8-** Communications and
Options .
•Selecting a specic communication protocol
changes various default parameter settings to
match the specications of the protocol, and
makes extra protocol-specic parameters
available.
Electrical Installation VLT®Midi Drive FC 280
18 Danfoss A/S © 11/2015 All rights reserved. MG07A102
44