WEG CFW-11 Series Instructions for use

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Crane Horizontal Motion
CFW-11
Application Manual
Language: English
Document: 10001257504 / 01

Crane Horizontal Motion Application Manual
Series: CFW-11
Language: English
Document Number: 10001257504 / 01
Publication Date: 04/2017

Contents
Crane Horizontal Motion | 4
CONTENTS
ABOUT THE MANUAL.................................................................................. 6
ABBREVIATIONS AND DEFINITIONS ......................................................................................................... 6
NUMERICAL REPRESENTATION ............................................................................................................... 6
QUICK PARAMETER REFERENCE, FAULTS AND ALARMS .....................7
FAULTS AND ALARMS ................................................................................9
1 INTRODUCTION TO THE CRANE........................................................... 10
1.1 CRANE HORIZONTAL MOTION.......................................................................................................... 10
1.2 CRANE VERTICAL MOTION................................................................................................................ 10
1.3 FREQUENCY INVERTER USE ADVANTAGES ................................................................................... 11
1.4 PRECAUTIONS IN THE FREQUENCY INVERTER SELECTION ....................................................... 11
1.5 FREQUENCY INVERTER AND BRAKING RESISTOR SELECTION CRITERIA................................ 12
1.5.1 Horizontal Motion .......................................................................................................................................12
1.5.2 Vertical Motion ............................................................................................................................................12
1.5.3 General Notes ..............................................................................................................................................13
2 CRANE HORIZONTAL MOTION ............................................................. 14
2.1 CONTROL CONNECTIONS ................................................................................................................. 14
2.1.1 Speed Reference via Electronic Potentiometer (EP) .........................................................................15
2.1.2 Speed Reference via Digital Inputs ........................................................................................................16
2.1.3 Speed Reference via Analog Input AI1 .................................................................................................17
2.1.4 Speed Reference via Communication Networks ...............................................................................18
2.2 BRAKE SYSTEM................................................................................................................................... 19
2.2.1 Connection Diagram ..................................................................................................................................19
3 PARAMETERS DESCRIPTION ................................................................ 21
3.1 ORIGIN OF THE COMMANDS............................................................................................................. 21
3.1.1 Configuration of the Commands ............................................................................................................21
3.2 RAMPS .................................................................................................................................................. 23
3.3 SPEED LIMITS ...................................................................................................................................... 24
3.4 DYNAMIC BRAKING ............................................................................................................................ 25
3.5 SPEED REFERENCES.......................................................................................................................... 25
3.6 CONTROL WORD................................................................................................................................. 29
3.7 CONFIGURATION OF THE LIMIT SWITCHES.................................................................................... 29
3.8 DIGITAL INPUTS................................................................................................................................... 30
3.9 DIGITAL OUTPUTS............................................................................................................................... 35
3.10 ANALOG INPUT .................................................................................................................................. 36
3.11 LIGHTWEIGHT MODE ........................................................................................................................ 37
3.12 BRAKE CONTROL.............................................................................................................................. 40
3.13 MOMENTARY OVERLOAD ................................................................................................................ 45
3.14 INVERTER IN TORQUE LIMIT DETECTION ..................................................................................... 47
3.15 IMPROPER OPERATION ................................................................................................................... 48
3.16 MOTOR UMBALANCED CURRENT.................................................................................................. 49
3.17 HMI MONITORING ............................................................................................................................. 49
3.18 READ-ONLY PARAMETERS.............................................................................................................. 50
3.18.1 Alarm History .............................................................................................................................................50
3.18.2 Status Word ...............................................................................................................................................51
4 CREATION AND DOWNLOAD THE APPLICATION................................ 53
5 DOWNLOAD DIALOG BOXES................................................................. 58
6 PROJECT TREE ON WLP........................................................................59

Contents
Crane Horizontal Motion | 5
6.1 LADDER DIAGRAMS ............................................................................................................................59
6.2 APPLICATION CONFIGURATION WIZARD ........................................................................................60
6.2.1 Tittle ...............................................................................................................................................................60
6.2.2 Input Value for Parameters ......................................................................................................................60
6.2.3 Info .................................................................................................................................................................60
6.2.4 Browse Buttons ..........................................................................................................................................60
6.3 MONITORING DIALOG BOXES............................................................................................................61
6.4 TREND VARIABLES DIALOG BOXES..................................................................................................61
6.5 PARAMETER VALUE DIALOG .............................................................................................................62

About the Manual
Crane Horizontal Motion | 6
ABOUT THE MANUAL
This manual provides the necessary description for the crane horizontal motion application configuration
developed of the CFW-11 frequency inverter SoftPLC function. This manual must be used together with the
CFW-11 user manual, the SoftPLC function manual and the WLP software manual.
ABBREVIATIONS AND DEFINITIONS
PLC Programmable Logic Controller
CRC Cycling Redundancy Check
RAM Random Access Memory
WLP Ladder Language Programming Software
USB Universal Serial Bus
NUMERICAL REPRESENTATION
Decimal numbers are represented by means of digits without suffix. Hexadecimal numbers are represented with
the letter ‘h’ after the number.

Quick Parameter Reference, Faults and Alarms
Crane Horizontal Motion | 7
QUICK PARAMETER REFERENCE, FAULTS AND ALARMS
Parameter Description Adjustable Range
Factory
Setting
User
Setting
Properties Groups Page
P1010
Crane Horizontal Motion Version 0.00 to 10.00
ro
50
50
P1011
Last Alarm 0 to 999 ro
50
50
P1012
Last Alarm Date 01.01 to 31.12 ro
50
50
P1013
Last Alarm Time
00.00 to 23.59
ro
50
51
P1014
Second Alarm
0 to 999
ro
50
50
P1015
Second Alarm Date
01.01 to 31.12
ro
50
50
P1016
Second Alarm Time
00.00 to 23.59
ro
50
51
P1017
Third Alarm
0 to 999
ro
50
50
P1018
Third Alarm Date
01.01 to 31.12
ro
50
50
P1019
Third Alarm Time 00.00 to 23.59 ro
50
51
P1020
Crane Horizontal Motion Status Word
1
Bit 0 = General Enabled
Bit 1 = Running (RUN)
Bit 2 = Rotation Direction
Bit 3 = LOC / REM
Bit 4 = Fault Condition
Bit 5 = Undervoltage
Bit 6 = Alarm Condition
Bit 7 = Load Forward Command
Bit 8 = Load Reverse Command
Bit 9 = Brake Release Command
Bit 10 to 15 = Reserved
ro
50
51
P1021
Crane Horizontal Motion Status Word
2
Bit 0 = Lightweight Operation
Bit 1 = Coast to Stop
Bit 2 = Fast Stop
Bit 3 = Emergency Stop
Bit 4 = Stop by Simultaneous
Commands
Bit 5 = Forward Slowdown
Bit 6 = Reverse Slowdown
Bit 7 = Stop Forward
Bit 8 = Stop Reverse
Bit 9 = Momentary Overload Alarm
Bit 10 = Reserved
Bit 11 = Reserved
Bit 12 = Inverter in Torque Limit
Bit 13 = Improper Operation
Bit 14 = Reserved
Bit 15 = Reserved
ro
50
52
P1022
Communication Network Control
Word
Bit 0 = Load Forward
Bit 1 = Load Reverse
Bit 2 to 15 = Reserved
0 rw
50
29
P1023
Speed Reference Control
Configuration
0 = Speed Reference via
Electronic Potentiometer (EP)
1 = One Speed Reference via
Digital Input DI4
2 = Two Speed References via
Digital Input DI4
3 = Three Speed References via
Digital Input DI4 and DI5
4 = Four Speed References via
Digital Input DI4 and DI5
5 = Five Speed References via
Digital Input DI4, DI5 and DI6
6 = Speed Reference via Analog
Input AI1 (Step Less)
7 = Speed Reference via
Communication Networks
2 cfg
50
25
P1024
Enable use of a Filter in the Forward
and Reverse Commands
0 = Off
1 = On
0
50
22

Quick Parameter Reference, Faults and Alarms
Crane Horizontal Motion | 8
Parameter
Description Adjustable Range
Factory
Setting
User
Setting
Properties Groups Page
P1025
Limit Switches Configuration
0 = Without Limit Switches
1 = Forward Slowdown via DI7 and
Reverse Slowdown via DI8
2 = Forward Slowdown via DI7 and
Stop Forward via DI8
3 = Reverse Slowdown via DI7 and
Stop Reverse via DI8
4 = Forward Slowdown via DI9 and
Forward Slowdown via DI10
5 = Forward Slowdown via DI9 and
Stop Forward via DI11
6 = Forward Slowdown via DI10 and
Stop Reverse DI12
7 = Forward Slowdown via DI9,
Forward Slowdown via DI10, Stop
Forward via DI11 and Stop Reverse
via DI12
0
cfg
50
29
P1026
Motor Rotation Direction Inversion
0 = Off
1 = On
0
cfg
50
22
P1027
Motor Demagnetization Time
0 to 65000 s
600 s
50
23
P1028
Speed Hysteresis for Inverter in
Torque Limit Detection
0.0 to 50.0 %
7.5 %
50
48
P1029
Inverter in Torque Limit Fault (F775)
Delay Time
0.00 to 650.00 s
0.75 s
50
48
P1030
Speed Reference via Communication
Networks
0.0 to 1020.0 Hz 0.0 Hz
50
26
P1031
Speed Reference 1 0.0 to 1020.0 Hz 6.0 Hz
50
26
P1032
Speed Reference 2 0.0 to 1020.0 Hz 60.0 Hz
50
27
P1033
Speed Reference 3 0.0 to 1020.0 Hz 0.0 Hz
50
27
P1034
Speed Reference 4 0.0 to 1020.0 Hz 0.0 Hz
50
28
P1035
Speed Reference 5 0.0 to 1020.0 Hz 0.0 Hz
50
28
P1036
Dwell Time at Speed Reference 1
0.00 to 650.00 s
0.50 s
50
28
P1038
Current Threshold for Lightweight
Detection
0.0 to 3000.0 A
10.0 A
50
37
P1039
Speed Threshold for Lightweight
Detection Enabling
0.0 to 1020.0 Hz 0.0 Hz
50
38
P1041
Brake Release Frequency Threshold
0.0 to 1020.0 Hz
4.0 Hz
50
40
P1043
Brake Release Current Threshold
0.0 to 3000.0 A
0.0 A
50
40
P1045
Brake Release Torque Threshold 0.0 to 350.0 % 0.0 %
50
40
P1046
Brake Response Time to Release 0.00 to 650.00 s 0.10 s
50
41
P1047
Inhibition of the Brake Closing during
a Forward/Reverse Command
Transition
0 = Off
1 = On
0
50
41
P1048
Brake Closing Frequency Threshold 0.5 to 1020.0 Hz 2.5 Hz
50
41
P1049
Delay Time for Brake Closing 0.00 to 650.00 s 0.00 s
50
41
P1050
Time to Enable a new Command to
Brake Release
0.10 to 650.00 s 0.20 s
50
42
P1052
Momentary Overload Current
Threshold
0.0 to 3000.0 A
40.0 A
50
45
P1053
Momentary Overload Detection Delay
Time
0.00 to 650.00 s
1.00 s
50
45
P1054
Momentary Overload Alarm (A770)
Delay Time
0.00 to 650.00 s 1.00 s
50
46
P1058
Number of Consecutive Alarms for
Improper Fault (F777)
0 to 10
3
50
48
P1059
Period of Time for Improper Fault
(F777)
0 to 65000 s
120 s
50
49

Quick Parameter Reference, Faults and Alarms
Crane Horizontal Motion | 9
FAULTS AND ALARMS
Fault/Alarm Description Possible causes
A750:
Lightweight Operation
The Crane Horizontal Motion application is
operating in the lightweight mode.
The motor speed is greater than P1039 and the
motor current is less than P1038 when a load
forward or reverse command is being executed.
A752:
Coast to Stop
The general enable signal has been
removed, releasing the motor to cast down.
Digital input DI3 with logical level “0”
A754:
Fast Stop
The fast stop command has been activated.
Digital input DI3 with logical level “0”
A756:
Emergency Stop
The emergency stop command has been
activated.
Digital input DI3 with logical level “0”
A758:
Stop by Simultaneous Commands
The application has been stopped because
of the simultaneous activation of the
hoisting and the lowering commands.
Digital inputs DI1 and DI2 with logical level “1”
A760:
Forward Slowdown Limit Switch
The forward slowdown limit switch has
been actuated.
The digital input DI5 or DI9 is with logical level
“0”. The digital input for that function is defined
by the parameter P1025.
A762:
Reverse Slowdown Limit Switch
The reverse slowdown limit switch has been
actuated.
The digital input DI5 or DI6 or DI10 is with logical
level “0”. The digital input for that function is
defined by the parameter P1025.
A764:
Stop Forward Limit Switch
The stop forward limit switch has been
actuated.
The digital input DI6 or DI11 is with logical level
“0”. The digital input for that function is defined
by the parameter P1025.
A766:
Stop Reverse Limit Switch
The stop reverse limit switch has been
actuated.
The digital input DI6 or DI12 is with logical level
“0”. The digital input for that function is defined
by the parameter P1025.
A770:
Momentary Overload
An attempt a load heavier than the
maximum operational capacity of the
application has been detected
The motor current during the forward or reverse
stage is greater than or equal to the value
adjusted in P1052.
F775:
Inverter in Torque Limit
The frequency inverter reached the adjusted
torque limit because of excessive load or
demanded force.
The difference between the actual speed and the
speed reference is greater than or equal to the
hysteresis value adjusted in P1028.
F777:
Improper Operation
Several consecutive alarm messages
occur
red during a certain period, disabling
the frequency inverter.
The number of consecutive alarms generated
during a certain period is greater than or equal to
the value adjusted in P1058.

Introduction to the Crane
Crane Horizontal Motion | 10
1 INTRODUCTION TO THE CRANE
The applicatives for crane developed for the CFW-11 SoftPLC function provides flexibility to the user in the
system use and in its configuration. It uses the tools already developed for the WLP programming software,
together with configuration wizards and monitoring dialog boxes.
1.1 CRANE HORIZONTAL MOTION
The crane horizontal motion (or load translation) consists in moving the load in the horizontal direction by
executing commands to forward and reverse the load. The long travel, the cross travel, and the boom rotation,
among others, are horizontal motions.
Figure 1.1
– Crane horizontal motion
1.2 CRANE VERTICAL MOTION
The crane vertical motion consists in moving the load vertically by executing commands to move it up and
down. The load hoisting and its lowering are the vertical motions.
Figure 1.2
– Crane vertical motion

Introduction to the Crane
Crane Horizontal Motion | 11
1.3 FREQUENCY INVERTER USE ADVANTAGES
We are able to evaluate the advantages of the variable frequency inverter use for crane horizontal motion or for
crane vertical motion, under the following aspects:
■
Elimination of the electrical line disturbances:
with the use of the inverter, by maintaining the motor flux
constant (varying both frequency and voltage), it is possible to have the motor rated torque in the entire speed
range.Therefore, with the inverter it becomes possible to start high torque loads with currents that are close to
motor rated current thus eliminating the high direct on line motor starting currents (up to 7 x In). The frequency
inverter eliminates those effects that cause voltage sags, the need of over sizing the switchgear, cables and
transformers, avoiding nuisance trips, etc.;
■
Elimination of the mechanical stress:
frequency inverters allow the programming of soft acceleration and
deceleration ramps, still giving out high torque, eliminating mechanical stress while starting, during speed
changes (if compared to the commutations of slip ring motor resistances), and while stopping, since the
mechanical brake does not longer engage for regular stopping (braking becomes electrical), being used only for
parking and emergencies. In this way downtime due to maintenance, adjustment of brake shoes, due to broken
coupling, bearings or gearboxes, is drastically reduced. Easier load positioning and better precision are also
achieved. All the settings are programmable and can be easily changed according to the application
requirements (acceleration and deceleration ramps, speeds, etc.);
■
Energy savings:
there is a reduction in the energy consumption because the motor power (kW) is
determinated by the driven load and by the operation speed, consuming only what the process requires,
eliminating energy wastes (low efficiency, energy and heat dissipation at slip ring motor drive systems), etc. In
production overhead cranes with high duty cycles, the use of active front end frequency inverters (regenerative)
becomes feasible, making it possible, besides the above mentioned energy savings for the return to the line of
the energy regenerated by lowering and braking the load (when the motor is being driven and operates as a
generator);
■
System automation:
the frequency inverter makes the system automation possible by allowing the control
through communication networks. By exchanging information with a higher hierarchy system (PLC, supervisory),
it allows better process management through monitoring, report emission, etc. It also makes the adaptation to a
remote radio control, with pushbuttons or joystick, easier;
■
Standardization:
it makes the use of standard induction motors possible, facilitating the plant motor
standardization, for maintenance and spares availability;
■
Comfort:
the reduction of mechanical noises and vibrations improve operator and area personnel comfort,
safety and productivity.
1.4 PRECAUTIONS IN THE FREQUENCY INVERTER SELECTION
For the great majority of loads (pumps, fans, compressors, etc. ) the frequency inverter selection is made
through the electric motor rated current, using an inverter with equal or slightly higher rated current (for
environmental conditions: temperature up to 50 °C and altitude up to 1000 m).
This selection also considers 150 % overload during 60 s every 10 minutes for heavy duty (HD) loads, or 110 %
overload during 60 seconds every 10 minutes for normal duty (ND) loads.
For crane applications, where there is need of starting heavy loads with relatively short acceleration times, it is
certain that the inverter has to operate with overload to overcome the inertia during acceleration or deceleration,
and normally the duty cycle is higher than the supported by the regular overload capability of frequency
inverters. Therefore, in most of cases, it is necessary to take into account the worst-case duty cycle for a 10-
minute operation period, calculating the rms current value for that period.
The chosen inverter will be for a current equal or higher than the calculated rms value. It must also be observed
whether any overload current in the evaluated cycle is higher than 1.5 times the rated inverter current, where the
inverter must be oversized in order to fulfill this requirement.
It is worthwhile to emphasize those environmental conditions such as altitude and temperature may require an
over sizing of the frequency inverter:

Introduction to the Crane
Crane Horizontal Motion | 12
■
Temperature:
0 to 50°C, or up to 60°C with 2% / inverter current derating per °C above 50°C;
■
Altitude:
0 to 1000 m, or up to 4000 m with 1% inverter current derating every 100 m above 1000 m.
1.5 FREQUENCY INVERTER AND BRAKING RESISTOR SELECTION CRITERIA
Some criteria have been established for the selection of the frequency inverter and the braking resistor in a
crane application, according to the type of motion to be executed:
1.5.1 Horizontal Motion
The inverter must be selected according to its rated normal duty current (IND):
N
ND I
I=
Being:
IND = Frequency inverter rated normal duty current;
IN= Motor rated current.
The braking resistor must be selected according to the equation:
M
RP
P×
=40.
0
with %ED = 50.0%
Being:
PR= Braking resistor power (kW);
PM= Motor rated power (kW);
%ED = Braking duty cycle.
NOTE!
Refer to the CFW-11 user's guide, table 3.3, to verify the ohmic value of the braking resistor to be
used according to the frequency inverter model.
1.5.2 Vertical Motion
The inverter must be selected according to its heavy duty rated current (IHD):
■ For light duty operation in non-aggressive environment:
N
HD
II ×= 15.
1
■ For heavy duty operation in aggressive environment:
NHD II ×
=30.1
Being:
IHD = Frequency inverter rated heavy duty current;
IN= Motor rated current.
NOTE!
In case of doubt about the duty cycle and the operation environment, use the biggest factor (1.30) to
select the frequency inverter.
The braking resistor must be selected according to the equation:
MR PP ×= 70.0
with %ED = 100.0%

Introduction to the Crane
Crane Horizontal Motion | 13
Being:
PR= Braking resistor power (kW);
PM= Motor rated power (kW);
%ED = Braking duty cycle.
NOTE!
Refer to the CFW-11 user's guide, table 3.3, to verify the ohmic value of the braking resistor to be
used according to the frequency inverter model.
1.5.3 General Notes
■ The braking resistor selection can be optimized if the customer provides the power calculated for the load
hoisting or for its horizontal motion. E.g., supposing that the power calculated for the hoisting of an overhead
crane is 62 kW, the used motor would be a 75 kW (commercial value). In this case, the braking resistor can be
obtained from the calculated power, in other words, 0.7 x 62 = 43.4 kW. The same procedure can be adopted
for the horizontal motion;
■ The installation condition, vibration, protection degree and painting, must be observed for the braking resistor
specification;
■ For the replacement of slip ring motors by standard motors, use a minimum factor of 1.2. The inverter
selection criteria remain the same, adopting the current of the new motor. Another criterion that can be adopted
is to use a motor whose frame is the same of the slip ring motor, provided that the ratio between the power of
the new motor and the old one is close to 1.2. The slip ring motors used in cranes usually have bigger frame
sizes than the same power range standard motors. The main advantage of adopting this criterion is the easy
mechanical adaptation of the new motor.

Crane Horizontal Motion
Crane Horizontal Motion | 14
2 CRANE HORIZONTAL MOTION
The crane horizontal motion consists in moving a load horizontally, executing commands for load forward and
load reverse together with the mechanical brake control, which must assure that the load remains in the
intended position when no load forward or load reverse commands exist.
The crane horizontal motion control developed for the CFW-11 SoftPLC presents the following characteristics:
■Speed reference selection through electronic potentiometer (EP), logical combination of digital inputs
(maximum of 5 references), analog input (step less) or communication networks;
■Commands for load forward and load reverse through digital inputs or through communication networks;
■Option of inverting the motor rotation direction adopted as standard for load forward and load reverse;
■Linear or “S” curve acceleration and deceleration ramps for crane horizontal motion;
■Option of stopping command via digital input, which can be for coast to stop, fast stop or emergency stop
with deceleration ramp;
■Minimum and maximum speed limits for crane horizontal motion;
■Gain, offset and filter settings for control speed signal through analog input;
■Mechanical brake release logic controlled by motor frequency and/or motor current and/or motor torque;
■Adjust of the brake response time to release avoids the increase of the motor frequency;
■Mechanical brake closing logic controlled only by motor frequency (total speed reference in Hz);
■Possibility of brake closing delay time;
■Adjust of the time to enable a new command to brake release after the command to brake closing preventing
a new command to be generated without the brake being mechanically closed;
■Possibility of brake inhibition during the transition from load forward to load reverse and vice-versa;
■Digital inputs programmed for limit switches (over travel limits) functions to reduce the speed (slowdown) while
load forward, to reduce the speed (slowdown) while load reverse, to stop load forward and to stop load reverse;
■Lightweight detection while load forward or load reverse;
■Momentary overload detection while load forward or load reverse, with subsequent alarm;
■Inverter in torque limitation detection while load forward or load reverse, with subsequent fault;
■Fault trip by improper use of the crane horizontal motion;
■Fault trip due to motor current unbalance;
■Crane horizontal motion alarm (the last three) and fault (the last ten) history;
■Possibility of applicative implementation or modification by the user through the WLP software.
2.1 CONTROL CONNECTIONS
The selection of the speed reference defines four different control connection types, because it can be through
electronic potentiometer (EP), logical combination of digital inputs (maximum of 5 references), analog input (step
less) or communication networks. The control connections (analog inputs/outputs and digital inputs/outputs) are
made at the CFW-11 electronic control board CC11 terminal strip XC1.
NOTE!
Refer to the CFW-11 frequency inverter manual for more information on the connections.

Crane Horizontal Motion
Crane Horizontal Motion | 15
2.1.1 Speed Reference via Electronic Potentiometer (EP)
The control connections (analog inputs/outputs and digital inputs/outputs) wired at the CFW-11 electronic
control board CC11 terminal strip XC1, when the speed reference is through electronic potentiometer (EP), are
presented next.
Figure 2.1
– Signals at the XC1 terminal strip for crane horizontal motion with speed reference via electronic
potentiometer
NOTE!
It is necessary to install the IOC-01 or IOC-02 accessory module in case the DI9, DI10, DI11 and
DI12 digital inputs and/or the DO6 and DO7 digital outputs use is required. Refer to the CFW-11
frequency inverter manual for more information on accessory modules.
XC1 Terminal
Strip
Default Function for Speed Reference via Electronic Potentiometer (EP )
1 REF+ Positive reference for potentiometer
2 AI1+
Analog input # 1 (0 - 10 V): No function
3 AI1-
4 REF- Negative reference for potentiometer
5 AI2+
Analog input # 2 (0 - 10 V): No function
6 AI2-
7 AO1
Analog output # 1: Motor speed
8 AGND
9 AO2
Analog output # 2: Motor current
10 AGND
11 DGND Reference (0 V) for the 24 Vdc power supply
12 COM Common point of the digital inputs
13 24VCC 24 Vdc power supply
14 COM Common point of the digital inputs
15 DI1 Digital input # 1: Load forward command
16 DI2 Digital input # 2: Load reverse command
17 DI3 Digital input # 3: Emergency stop
18 DI4 Digital input # 4: Acceleration (it increases the speed)
19 DI5 Digital input # 5: No function
20 DI6 Digital input # 6: No function
21 NC1
Digital output #1 DO1 (RL1): No fault
22 C1
23 NO1
24 NC2
Digital output #2 DO2 (RL2): Run
25 C2
26 NO2
27 NC3
Digital output #3 DO3 (RL3): Brake release
28 C3
29 NO3

Crane Horizontal Motion
Crane Horizontal Motion | 16
2.1.2 Speed Reference via Digital Inputs
The control connections (analog inputs/outputs and digital inputs/outputs) wired at the CFW-11 electronic
control board CC11 terminal strip XC1, when the speed reference is through the logical combination of digital
inputs for 5 references, are presented next.
Figure 2.2
– Signals at the XC1 terminal strip for crane horizontal motion with speed reference via the logical
combination of digital inputs
NOTE!
It is necessary to install the IOC-01 or IOC-02 accessory module in case the DI9, DI10, DI11 and
DI12 digital inputs and/or the DO6 and DO7 digital outputs use is required. Refer to the CFW-11
frequency inverter manual for more information on accessory modules.
XC1 Terminal
Strip
Default Function for Speed Reference via Digital Inputs
1 REF+ Positive reference for potentiometer
2 AI1+
Analog input # 1 (0 - 10 V): No function
3 AI1-
4 REF- Negative reference for potentiometer
5 AI2+
Analog input # 2 (0 - 10 V): No function
6 AI2-
7 AO1
Analog output # 1: Motor speed
8 AGND
9 AO2
Analog output # 2: Motor current
10 AGND
11 DGND Reference (0 V) for the 24 Vdc power supply
12 COM Common point of the digital inputs
13 24VCC 24 Vdc power supply
14 COM Common point of the digital inputs
15 DI1 Digital input # 1: Load forward command
16 DI2 Digital input # 2: Load reverse command
17 DI3 Digital input # 3: Emergency stop
18 DI4 Digital input # 4: 1st DI for speed reference
19 DI5 Digital input # 5: 2nd DI for speed reference
20 DI6 Digital input # 6: 3rd DI for speed reference
21 NC1
Digital output #1 DO1 (RL1): No fault
22 C1
23 NO1
24 NC2
Digital output #2 DO2 (RL2): Run
25 C2
26 NO2
27 NC3
Digital output #3 DO3 (RL3): Brake release
28 C3
29 NO3

Crane Horizontal Motion
Crane Horizontal Motion | 17
2.1.3 Speed Reference via Analog Input AI1
The control connections (analog inputs/outputs and digital inputs/outputs) wired at the CFW-11 electronic
control board CC11 terminal strip XC1, when the speed reference is through the analog input AI1, are
presented next.
Figure 2.3
– Signals at the XC1 terminal strip for crane horizontal motion with speed reference via the analog
input AI1
NOTE!
It is necessary to install the IOC-01 or IOC-02 accessory module in case the DI9, DI10, DI11 and
DI12 digital inputs and/or the DO6 and DO7 digital outputs use is required. Refer to the CFW-11
frequency inverter manual for more information on accessory modules.
XC1 Terminal
Strip
Default Function for Speed Reference via Analog Input AI1
1 REF+ Positive reference for potentiometer
2 AI1+
Analog input # 1 (0 - 10 V): Speed reference
3 AI1-
4 REF- Negative reference for potentiometer
5 AI2+
Analog input # 2 (0 - 10 V): No function
6 AI2-
7 AO1
Analog output # 1: Motor speed
8 AGND
9 AO2
Analog output # 2: Motor current
10 AGND
11 DGND Reference (0 V) for the 24 Vdc power supply
12 COM Common point of the digital inputs
13 24VCC 24 Vdc power supply
14 COM Common point of the digital inputs
15 DI1 Digital input # 1: Load forward command
16 DI2 Digital input # 2: Load reverse command
17 DI3 Digital input # 3: Emergency stop
18 DI4 Digital input # 4: No function
19 DI5 Digital input # 5: No function
20 DI6 Digital input # 6: No function
21 NC1
Digital output #1 DO1 (RL1): No fault
22 C1
23 NO1
24 NC2
Digital output #2 DO2 (RL2): Run
25 C2
26 NO2
27 NC3
Digital output #3 DO3 (RL3): Brake release
28 C3
29 NO3

Crane Horizontal Motion
Crane Horizontal Motion | 18
2.1.4 Speed Reference via Communication Networks
The control connections (analog inputs/outputs and digital inputs/outputs) wired at the CFW-11 electronic
control board CC11 terminal strip XC1, when the speed reference is through communication networks, are
presented next.
Figure 2.4
– Signals at the XC1 terminal strip for crane horizontal motion with speed reference via
communication networks
NOTE!
It is necessary to install the IOC-01 or IOC-02 accessory module in case the DI9, DI10, DI11 and
DI12 digital inputs and/or the DO6 and DO7 digital outputs use is required. Refer to the CFW-11
frequency inverter manual for more information on accessory modules.
XC1 Terminal
Strip
Default Function for Speed Reference via Communication Networks
1 REF+ Positive reference for potentiometer
2 AI1+
Analog input # 1 (0 - 10 V): No function
3 AI1-
4 REF- Negative reference for potentiometer
5 AI2+
Analog input # 2 (0 - 10 V): No function
6 AI2-
7 AO1
Analog output # 1: Motor speed
8 AGND
9 AO2
Analog output # 2: Motor current
10 AGND
11 DGND Reference (0 V) for the 24 Vdc power supply
12 COM Common point of the digital inputs
13 24VCC 24 Vdc power supply
14 COM Common point of the digital inputs
15 DI1 Digital input # 1: No function
16 DI2 Digital input # 2: No function
17 DI3 Digital input # 3: Emergency stop
18 DI4 Digital input # 4: No function
19 DI5 Digital input # 5: No function
20 DI6 Digital input # 6: No function
21 NC1
Digital output #1 DO1 (RL1): No fault
22 C1
23 NO1
24 NC2
Digital output #2 DO2 (RL2): Run
25 C2
26 NO2
27 NC3
Digital output #3 DO3 (RL3): Brake release
28 C3
29 NO3

Crane Horizontal Motion
Crane Horizontal Motion | 19
2.2 BRAKE SYSTEM
The brake is the element of the crane responsible for hold the load when the motor is not running. Therefore it is
very important that it be configured to operate in the safest way possible.
The electromagnet coil is powered by direct current (DC) which can be supplied by a DC voltage source or
bridge rectifier which converts AC to DC current. The bridge rectifier consists of diodes and varistors that filter
undesirable voltage spikes and enable fast current shutdown.
NOTE!
It is recommended always power the brake by direct current (DC) as it provides greater speed and
reliable brake operation.
2.2.1 Connection Diagram
NOTE!
The following connection diagrams shown are valid for WEG brake motors. The same must be
suitable for other types of brake or brake motor.
2.2.1.1 AC Power Supply
Usually brake motors admit two braking systems: normal and fast.
■
Normal Braking:
the interruption of DC power to brake closing is done by removal of the AC power supply to
terminals 1 and 2.
Figure 2.5
– Connection diagram of the bridge rectifier for normal braking

Crane Horizontal Motion
Crane Horizontal Motion | 20
■
Fast Braking:
the interruption of DC power to brake closing is done directly in the direct current source to
terminals 3 and 04 keeping the terminals 1 and 2 on AC power supply.
Figure 2.6
– Connection diagram of the bridge rectifier for fast braking
2.2.1.2 DC Power Supply
The connection must be made directly on the brake terminals as the voltage on the brake power nameplate.