Reo Elektronik REOVIB MFS 268 User manual

268_UL-CSA_ANL_EN_47-13.DOC
21.11.2013
REOVIB
Control Equipment for the Vibratory Feeder Industry
MFS 268
Frequency Converter for Vibratory Feeders
UL / CSA - Version

REOVIB MFS 268 UL/CSA
Operating Instructions
1
ELEKTRONIK
Technical safety instructions for the user
This description contains the necessary information for the correct application of the product described
below. It is intended for use by technically qualified personal.
Qualified personnel are persons who, because of their training, experience and position as well as their
knowledge of appropriate standards, regulations, health and safety requirements and working conditions,
are authorised to be responsible for the safety of the equipment, at all times, whilst carrying out their nor-
mal duties and are therefore aware of, and can report, possible hazards (Definition of qualified employees
according to IEC 364)
Safety Instructions
The following instructions are provided for the personal safety of operators and also for the protection of
the described product and connected equipment.
Warning!
Hazardous Voltage
Failure to observe can kill, cause serious injury or damage
•Isolate from mains before installation or dismantling work, as well as for fuse changes or post installa-
tion modifications.
•Observe the prescribed accident prevention and safety rules for the specific application.
•Before putting into operation check if the rated voltage for the unit conforms with the local supply
voltage.
•Emergency stop devices must be provided for all applications. Operation of the emergency stop must
inhibit any further uncontrolled operation.
•The electrical connecting terminals must be covered!
•Earth bonding must be tested for integrity after installation.
Specified Use
The units described herein are electrical controllers for installation in industrial plant.
They are designed for controlling vibratory feeders.
For use in NFPA 79 Applications only
Adapters providing field wiring means are available from REO ELEKTRONIK AG.
Refer to REO ELEKTRONIK AG.
!

REOVIB MFS 268 UL/CSA
Operating Instructions
2
ELEKTRONIK
Contents
Technical safety instructions for the user ..................................................................................................... 1
1.0 General................................................................................................................................................... 3
2.0 Function.................................................................................................................................................. 3
2.1 Track control ....................................................................................................................................... 4
2.2 Operating with two speeds (2 set points for coarse/fine switching)....................................................4
2.3 Control inputs and output.................................................................................................................... 4
2.3.1 Enable input ..................................................................................................................................... 4
2.3.2 Sensor input for track control...........................................................................................................4
2.3.3 External set point ............................................................................................................................. 4
2.3.4 Output status relay........................................................................................................................... 5
2.3.5 Time-Out output 24 VDC ................................................................................................................. 5
2.3.6 Air valve output 24 VDC................................................................................................................... 5
2.4 Display ................................................................................................................................................ 5
3.0 Construction............................................................................................................................................ 5
3.1 Enclosed units..................................................................................................................................... 5
3.2 Panel mounting units...........................................................................................................................5
4.0 Technical Data........................................................................................................................................ 6
5.0 Ordering Codes (UL / CSA units) ...........................................................................................................6
6.0 Declaration of Conformity.......................................................................................................................6
7.0 Settings................................................................................................................................................... 7
8.0 Control elements..................................................................................................................................... 8
8.1 Settings ............................................................................................................................................... 8
9.0 Commissioning ....................................................................................................................................... 9
9.1 Assembling position............................................................................................................................ 9
9.2 Preliminary steps................................................................................................................................. 9
9.2.1 Important points ............................................................................................................................... 9
9.2.1.1 Operating frequency of the feeder coil..........................................................................................9
9.2.1.2 Measurement of the output voltage and current...........................................................................9
9.3 Putting the equipment into operation................................................................................................10
9.4 Switch-on frequency of the power supply.........................................................................................10
10.0 Setting Instructions.............................................................................................................................11
10.1 User adjustment of throughput........................................................................................................11
10.2 Tuning the feed system...................................................................................................................11
10.2.1 Feeder settings ............................................................................................................................11
10.2.2 Track control ................................................................................................................................12
10.2.3 Sensor time out............................................................................................................................12
10.2.4 Set point source...........................................................................................................................12
10.2.5 Pulse feed....................................................................................................................................13
10.2.6 Regulation mode..........................................................................................................................13
10.2.6.1 Instructions for using regulation mode......................................................................................14
10.2.6.2 Mounting the accelerometer .....................................................................................................14
10.2.6.3 Relationship between acceleration and amplitude ...................................................................16
10.2.6.4 Instructions for setting up the controller in regulation mode.....................................................16
10.2.6.5 Determining the resonant frequency.........................................................................................16
10.2.6.6 Optimisating controller in regulation mode ...............................................................................17
10.2.6.7 Displays.....................................................................................................................................17
10.2.7 Display actual current and frequency ..........................................................................................18
10.2.8 Save selected parameters...........................................................................................................18
10.2.9 Recall user or factory settings......................................................................................................18
10.2.10 Hide parameter menus ..............................................................................................................18
11.0 Error messages / ERROR reset .........................................................................................................19
12.0 Connections for enclosed construction (IP 54): 6-8 A Units...............................................................20
12.1 Connections for enclosed construction (IP 54): 12 A Units ............................................................21
12.2 Connections for enclosed construction (IP 54): 16 A Units ............................................................22
13.0 Connections for panel mounting construction (IP 20): 3 A, 6 A, 8 A..................................................23
13.1 Connections for panel mounting construction (IP 20): 16A ............................................................24
14.0 Dimensions for 3 A, 6 A, 8 A Units .....................................................................................................25
14.1 Dimensions of enclosed construction (IP 54) 12 A.........................................................................26
14.2 Dimensions of enclosed construction (IP 54) 16 A.........................................................................26
14.3 Dimensions of Panel mounting construction (IP 20) 16 A ..............................................................27
A 1.0 Service appendix...............................................................................................................................28
A 2.0 Accessories / Spare Parts.................................................................................................................31

REOVIB MFS 268 UL/CSA
Operating Instructions
3
ELEKTRONIK
1.0 General
The REOVIB MFS 268 range comprises special, adaptable controllers for use with vibratory feeders. The
units generate an output frequency, to drive feeders, that is independent of mains frequency and so exact
tuning with springs is not necessary. The feeders also run quieter because of the sinusoidal output signal.
The adjusted output frequency corresponds to the mechanical vibrating frequency of the feed system.
The optimum frequency setting for a feeder can determined manually or automatically in regulation mode.
Depending on the version, the controller can be used in regulation mode, working in conjunction with an
accelerometer fitted to the feeder, to operate at resonant frequency. In this way a constant component
feed rate that is unaffected by load changes can be achieved. In regulation mode the vibrating frequency
is also dynamically adjusted to compensate for resonant frequency changes caused by load changes. In
normal operating mode (without accelerometer) the feeder remains constant at the set frequency. In both
operating modes the feeder throughput is determined by the output voltage level.
Totally enclosed or panel mounting units can be supplied.
Notable Features:
•Adjustable output frequency, independent of mains fre-
quency
•Adjustable minimum and maximum limits for the frequen-
cy range
•Adjustable current limit for the maximum coil current
•Constant feeder throughput irrespective of mains fluctua-
tions
•Regulation control, with independent frequency search
(resonance)
•On/Off status relay
•Track control
•24 VDC output for operating a solenoid e.g air valve
•Four user setting memory locations
•Optional RS232 or Profibus-DP interface for remote pa-
rameter setting.
2.0 Function
The unit is set up by using the touch panel on the front plate (buttons and LED display). All settings can
be made by using the touch panel and a series of menus. The various parameters can be selected by
entering operator codes. A fuller description of the parameters can be found In the section on settings.
Alternatively, the feeder throughput can adjusted by using an external potentiometer, an external voltage
signal 0...10 V, DC or a current signal 0(4)...20 mA (the chosen option must be selected in menu 003). A
relay with potential free contacts is provided for feeder status indication and this operates in conjunction
with the feeder enable signal. Terminals for these contacts can be found inside the controller.
During normal operation the set point is displayed as a percentage in the LED window. In the program-
ming mode the selected dimension, as described in the setting up instructions, is shown. Changed set-
tings can be stored by leaving the programming mode or automatically saved by not pressing a key for a
period of 100 seconds.
The control units can provide a frequency range from 5…300 Hz, which can be limited by adjustable,
upper and lower frequency limits. The usable adjustment range cannot exceed a ratio of 1:4, i.e. the up-
per frequency limit cannot be more than four times the lower frequency limit. It is possible to have a nar-
rower setting of the limits and this provides a margin of safety against too wide a difference in the vibrat-
ing frequency.
The maximum output current drawn by the coil can be determined by integrated current limiting.
Critical parameters such as the current limit and vibrating frequency range are held under a special ser-
vice menu. This menu cannot be accessed through the normal menu structure and an additional code
number has to be used to gain access. This prevents unauthorised adjustment of these sensitive parame-
ters.
An interface option can be used to provide an RS232 or Fieldbus (Profibus-DP) connection.
Enclosed
Construction Panel mounting construction
Ø 5,0
21 22 23 24 25 26 27 28 291 2 3 4 5 6 7 8 9 31 32 3334
REOVIB MFS268
F I
0P
SPEED
P P P
REOVIB MFS 268
X1
X4
X7 X6
X0
X40 X5
P
F
I
0
www.reo.de

REOVIB MFS 268 UL/CSA
Operating Instructions
4
ELEKTRONIK
t ON
t OFF
Sensor
Feeder
ON
OFF
ON
OFF
Soft Start
Soft Stop
2.1 Track control
The output can be
switched ON and OFF
from a track component
sensor, using internal,
adjustable time delays (ton
and toff).
The queue of components
rises above and drops
below the track sensor
position. The controller
output switches on when the sensor cannot detect product and a switch-on time delay has elapsed. The
output is switched off when product is detected and a switch-off time delay has elapsed (FULL displayed
in the LED window). Gaps in the product feed cause resetting of the time delay. The time will always be
precise from the last or first component, respectively. The ON and OFF time delays are set in the pro-
gramming menu. The first decimal point in the display blinks to indicate that an internal timer is running.
An additional “Sensor-Time-out“ timer is started when the feeder switches on. This can be set (30...240
sec.) to switch off the feeder if no product is sensed in the time out period. The status relay indicates that
the feeder is not running and the LED window displays ERROR and SE alternately. This function is op-
tional and must be selected in the Track Settings Menu with function EEn = 1.
2.2 Operating with two speeds (2 set points for coarse/fine switching)
Coarse/Fine control can be used instead of track control (Menu C 003). The second set point is activated
through the same sensor input that is used for track control. Either contacts or a 24 VDC signal can be
used to change the set point from coarse to fine. The second set point is activated, immediately, by apply-
ing a 24 V signal
(The track control function is invalid)
2.3 Control inputs and output
2.3.1 Enable input
External switch or 24 VDC signal voltage.
External control function to switch the power output ON or OFF e.g. Networking of several controllers
from a central PLC.
2.3.2 Sensor input for track control
Sensor for monitoring the queue of components on the track or an input for switching to the second set
point 24 VDC (PNP).
2.3.3 External set point
The feeder amplitude set point can be provided from and external, analog 0...10 V, DC, 0(4)...20 mA, or a
10 kR Potentiometer. Parameter ESP in Menu C003 must be set to I, for an external set point source to
be used.
If a potentiometer is used, must additionally parameter "POT" set to I. (not on 16A IP 20 units).
Setting the minimum output value when external set point = 0:
Before changing the ESP parameter to accept an external set point source, the minimum value can be
adjusted by using the cursor keys, on the front panel, and this will remain when the ESP is changed over
from 0 to I.

REOVIB MFS 268 UL/CSA
Operating Instructions
5
ELEKTRONIK
2.3.4 Output status relay
Status-Relay contact 250 V/1 A (changeover). Relay closes when the feeder is running – the relay opens
when there is no enable signal or a fault displayed.
2.3.5 Time-Out output 24 VDC
"time Out" message active, if after adjusted time no material is recognized by the sensor (adjustable with
parameter "E."). (not on IP 20 units)
2.3.6 Air valve output 24 VDC
Output for air blast, comes on with feeder and switches off, 4 sec., after feeder stops (not on IP 20 units)
2.4 Display
Initialisation phase, when supply voltage is connected (left decimal point blinks).
Normal Mode: The throughput set point is displayed
Output switched off using the `0` button
Unit inhibited by the enable input
Output switched off by the track control sensor
Under voltage, input voltage is to low.
3.0 Construction
The units are available as stand-alone, enclosed or panel mounting versions .
3.1 Enclosed units
•Mains switch
•Touch panel with display
•Mains cable with plug
•Output cable or output socket for connecting to the feed system
•Sensor socket. The standard unit has provision for 24 VDC sensors with a PNP output
3.2 Panel mounting units
• Touch panel with display
• Terminals for electrical connections
• Screw hole fixings for mounting

REOVIB MFS 268 UL/CSA
Operating Instructions
6
ELEKTRONIK
4.0 Technical Data
Model Type MFS 268 / 3A MFS 268 / 6A MFS 268 / 8A MFS 268 / 12A
MFS 268 / 16A
Supply voltage 110 V, 240 V +/- 10 %, 50/60
Output 0...95 V, 0...205 V
Output current Max. 3 A Max. 6 A Max. 8 A Max. 12A Max 16 A
Recommended *
Protection 10 A Anti-surge 16 A Anti-surge 16 A Anti-surge 16 A Anti-surge 16 A Anti-surge
Type D current trip device
Enable 24 V, DC input (connect to internal 24 V reference)
Status relay Change-over contacts, 250V, 1 A
Sensor supply 24 V, DC, 100 mA
Sensor type PNP output
Status output Relay, change-over contact 1A, 250 VAC , 60 VDC
Switch-on frequency
of the power supply wait 5 seconds until resetting the power supply
Solenoid valve out-
put 24 VDC / 50 mA switched with feeder unit (PNP), short-circuit protected not provided at
IP 20 versions
Operating tempera-
ture 0...+45 °C
Storage temperature
-10...+80 °C
Altitude 1000 m 0,5 % rated current reduction for each additional 100 m
* The units are provided with switch-on, current damping. However it is still possible that some
internal capacitor, energising, current spikes will be generated, especially when several units are
switched on simultaneously. Therefore, fuses and overload trips should have anti current surge
characteristics.
5.0 Ordering Codes (UL / CSA units)
Type
Order
C
ode
Construction
REOVIB MFS 268-3A–
IP
20
621607
3 A
, Panel mounting with track control and accelerometer
regulation
REOVIB MFS 268-6A–
IP
20
621614
6 A
, Panel mounting with track control and accelerometer
regulation
REOVIB MFS 268-8A–
IP
20
621621
8 A
, Panel mounting with track control and accelerometer
regulation
REOVIB MFS 268-16A–
IP
20
621110
16 A
, Panel mounting with track control and accelerometer
regulation
REOVIB MFS 268-6A–
IP 54
626825
6 A
, Enclosed construction with track control and accelerometer
regulation
REOVIB MFS 268-8A–
IP 54
626845
8 A
, Enclosed construction with track control and accelerometer
regulation
REOVIB MFS 268-12A–
IP
54
626865
1
2 A
, Enclosed construction with track control and accelerometer
regulation
REOVIB MFS 268-16A–
IP
54
626885
16 A
, Enclosed construction with track control and accelerometer
regulation
For use in NFPA 79 Applications only E217179
Adapters providing field wiring means are available from REO ELEKTRONIK AG.
Refer to REO ELEKTRONIK AG.
6.0 Declaration of Conformity
We declare that these products conform with the following standards: EN 61000-6-4 and
EN 61000-6-2 in accordance with the regulations of guidelines 2004/108/EC.
REO ELEKTRONIK AG, D-42657 Solingen
RoHS
COMPLAINT

REOVIB MFS 268 UL/CSA
Operating Instructions
7
ELEKTRONIK
7.0 Settings
After checking the correct operation of the controller in conjunction with the vibratory feed system it is
advisable to restrict the user to feeder throughput settings only.
Setting the feeder throughput:
Press the P key twice and adjust the throughput with the cursor keys (Code C. 000).
Parameter: Code
Factory se
t-
ting: Entry
Code:
Vibratory feeder
•Amplitude (throughput) 0...100 % A. 0 % 000, 002
The following variable parameters are available for setting up the feed system
Parameter: Display
Factory se
t
ting:
Entry Code:
Vibratory feeder
•Amplitude (throughput)) 0...100 % A. 0 % 000, 002, 020,
096
•Maximum control limit (U
max
) 5...100 % P. 90 % 008, 020, 096
•Vibrating frequency 30...140 Hz
(5...300 Hz) F. 100 Hz 008, 020 040, 096,
•Soft start ramp up 0...60 Sec. /. 0.1 Sec. 020, 096
•Soft stop ramp down 0...60 Sec. \. 0.1 Sec. 020, 096
•Switch to external set point 0 / I E.S.P. 0 003
•Set point 0(4)...20 mA 0 / I 4.20 0 003
•Potentiometer set point 0 / I POT. 0 003
•Coarse / Fine control 0 / I S.P.2. 0 003
•Invert enable 0 / I -En. 0 003
•Pulse feed 0 / I HOP. 0 004, 064
•On time delay (only if HOP. = I) 0…60 Sec. H. 1.0 Sec. 004, 064
•Off time delay (only if HOP. = I) 0…60 Sec.
h 1.0 Sec. 004 ,064
•Invert hopper sensor (not active) 0 / I -Ho. 0 004, 064
Regulation (with sensor)
•Switch to regulation 0 / I ACC. 0 008
•P characteristic 0...100 P.A. 40 008
•I characteristic 0...100 I.A. 100 008
•Automatic frequency control 0 / I A.F.C 0 008
•Start automatic frequency search A.F.S. 008
Track control
•Switch on time delay 0...60 Sec. I. 1.0 Sec. 007, 167
•Switch off time delay 0...60 Sec. O. 1.0 Sec. 007, 167
•Invert sensor PNP / PNP
invert -SE. PNP 007, 167
•Sensor Time-out 0 / I E.En. 0 015, 167
•Sense time delay (Sensor Time-out) 1...240 Sec. E.E. 180 Sec. 015, 167
•Switch off time air valve 0…60 Sec. A.i. 4 Sec. 015
Service
•Display actual output current i. 040
•Display actual frequency F. 040
•Save user settings PUSH. 143
•Recall factory settings FAC. 210
•Recall user settings US.PA. 210
•Hide programming menus 0 / I Hd.C. 0 117
•Hide set point adjustment 0 / I di.S. 0 137
•Display software version 001

REOVIB MFS 268 UL/CSA
Operating Instructions
8
ELEKTRONIK
I
0
P
F
ON
OFF
Display
ACCEPT
or SKIP FUNCTION
Reduce
Increase
Back
8.0 Control elements
8.1 Settings
The six buttons and a LED display found in the
front panel, are used for operating and setting up
the unit. All operating methods and adjustable
parameters can be set up through this panel.
The “I“ and “O“ buttons are used for switching the
unit ON and OFF, however, these do not provide
mains isolation, they simply inhibit the power
semiconductors
The “P“, “F“ and “Cursor Buttons“ are used for
parameter adjustment. Parameters are set by
using menu controls which are called up by enter-
ing operator codes. The functions are described
in greater detail in the section on setting instruc-
tions.
The display value can be increased or decreased
by units, or tenths of units, by a short press of the
cursor buttons. Holding the buttons down will
cause the display to change in units of ten.
To prevent accidental or unauthorized adjustment the adjustment parameters, in the user menus, are
protected. A code must be entered to open the user menus. There are different pass codes for each func-
tion group.
Setting adjustments are automatically saved upon leaving the programming mode or if no button
is pressed for a period of 100 seconds.
All setting routines are commenced by pressing the programming button “P“. The following diagram
should clarify the sequence in which keys are pressed:
1. Press the “P“ key.
2. Select the code number with the cursor keys.
3. Press the “P“ key. This displays the first menu point. The required menu point can be found by re-
peatedly pressing the “P“ key (scrolling).
4. The value in the menu point can be changed with the cursor keys.
5. Scroll to the next menu point or to the end of the menu, which returns the display to the set point val-
ue, by pressing the “P“ key. To exit the menu and return back to the normal display, quickly, depress
the “P“ key for 5 seconds.
6. To return back to the previous position in the menu, press the “F“ key.
PP
P
P
P P

REOVIB MFS 268 UL/CSA
Operating Instructions
9
ELEKTRONIK
9.0 Commissioning
9.1 Assembling position
Please fasten the devices on a vibration-free underground and take care for sufficient air
circulation.
9.2 Preliminary steps
•Check that the unit is correct for the local mains supply (rating plate information) and that it is correct-
ly rated for the feed system.
•Connect the controller according to the connection diagram
•When applications with frequently on and off cycles are required, use the intended enable input. It is
prohibited to open the current circuit with a switch or a contactor while the feeder is running.
9.2.1 Important points
Using the control units described in this document, it is possible to adjust the feed system
that it runs in resonance. In this condition it is possible to obtain excessive output for a very
low set point setting. Therefore extreme care should be taken to avoid causing damage to
the drive coil, through hammering.
In practice it is not possible to run at resonant frequency without accelerometer feedback because the
system would be unstable and uncontrollable. The system must be set safely off resonance i.e. either
above or below the natural frequency.
Resonant frequency: Depending on the spring and mass design of the feeder system it is possible to
have resonance at more than one frequency. These additional resonance points are multiples of the main
frequency. For this reason in critical situations it is possible that the automatic frequency search will not
find true resonance and in such cases the natural frequency must be determined manually.
9.2.1.1 Operating frequency of the feeder coil
It is possible that the current flowing through the coil will increase for a small frequency adjustment. And
so this should be checked with a true RMS instrument for each new application as well as monitoring the
coil for heat build-up.
The coil should be designed for the correct operating frequency to prevent excessive current draw and
the consequential overloading of the coil.
9.2.1.2 Measurement of the output voltage and current
The voltage and current cannot be measured with a regular instrument because the controller output uses
an electronic inverter with a pulse width modulation signal. An effective measuring instrument such as a
moving iron meter (analog) must be used. It is recommended that an analog instrument is used rather
than an electronic multi-meter which will give a misleading reading.
!
!

REOVIB MFS 268 UL/CSA
Operating Instructions
10
ELEKTRONIK
9.3 Putting the equipment into operation
1. Establish the vibrating frequency.
2. Establish the power of the feed system (maximum permissible current draw).
For a new feeder where settings are unknown: (see also comments below)
Without connecting the feeder, select parameter FAC in menu C210 (reset factory settings), press the
cursor key to reset (SAFE) and press the P key to leave the menu. The factory settings are listed in the
table in section 7, headed settings
! Comments !
It is possible that a special parameter set, for a machine manufacturer, has been pre-stored under a user
code and these can be recalled. In such instances specific machine settings will be loaded and so the
next steps are not relevant.
Basic settings:
•Connect feeder.
•Set frequency (refer to feeder data sheet). Menu C096 parameter F.
•Check current limit (refer to feeder data sheet). Menu C040 parameter I (shows the current limit as a
percentage of maximum). If applicable use service menu for setting.
•Increase set point, observe feeder, check running.
•Increase set point to maximum and check if power needs limiting (hammering). If necessary adjust
the limit as follows:-
•Adjust set point to zero
•Set parameter P (maximum limit) in Menu C096 to 50
•Adjust set point A to 100%.
•Increase the maximum limit P from 50% until the required amplitude is reached.
•The full set point range of 0…100% can now be used.
Additional settings e.g. soft start, time delays etc. can be set to suit the particular equipment.
Determining the output frequency (vibrating frequency)
It is essential that the output frequency is adjusted with the set point set at a low frequency, otherwise on
hitting the resonant frequency it is possible to achieve a high amplitude with a low output voltage. An ana-
log, effective value, current indicating unit (moving iron meter) must be connected into the output circuit.
Resonant is reached when there is a maximum amplitude for a minimum output current.
To achieve a stable feed system there must be an offset between the vibrating frequency and res-
onance (approx. 1…2Hz). This offset must be determined by the user because different feeders have
different running characteristics.
9.4 Switch-on frequency of the power supply
Please wait about 5 seconds until resetting the power supply to reduce not the efficiency of the internal
inrush current limiter.

REOVIB MFS 268 UL/CSA
Operating Instructions
11
ELEKTRONIK
10.0 Setting Instructions
10.1 User adjustment of throughput
Code C. 000
A further set point code can be found under C002
(for use in coarse/fine operation)
10.2 Tuning the feed system
10.2.1 Feeder settings
Code C. 020, 096
PP
P
P
P
P
P
P
P
P
P
P
Soft start 0...60 Sek.
Soft stop 0...60 Sek.
Running mode
Vibration frequency [Hz]
Max. output 100...5 %
Feeder amplitude set point
0...100 %
P
F
Setting the maximum limit
1. Adjust set point to zero
2. Set parameter P (maximum limit) to 50.
3. Adjust set point to 100%
4. Increase the limit P from 50% until the required amplitude is reached
5. The full set point range of 0…100% can now be used
Feeder amplitude set point
0...100 %
Running mode
P P P
P
P P
P
P
P
P
Feeder amplitude set point
0...100 %
2
nd
Feeder amplitude set point
0...100%
(only if "SP.2. = I)
Running mode

REOVIB MFS 268 UL/CSA
Operating Instructions
12
ELEKTRONIK
10.2.2 Track control
10.2.3 Sensor time out
10.2.4 Set point source
Code C. 003
P P P
P
P
P
P
P
P
F
P
0 = Set point using display
I = External set point
0 = External set point 0...+10 V / 0...20 mA
I = External set point 4...20 mA
0 = Level sensor control
I = 2
nd
set point active
0 = Enable
I = Invert Enable
Running mode
0 = 0...10 V/ 0(4)...20 mA
I = Potentiometer
POT is not available on 16A IP20 units
0 = Sensor time out not active
I = Sensor time out active
E. = Sensor time out [sec.]
P P
P
Code C. 015
P
Running mode
P
P
Ai. = switch off time air valve
0...60 Sec.
On time delay 0...60 sec.
Off time delay 0...60 sec.
0 = No sensor inverting
I = Sensor inverting
Code C. 167, 007
0 = Sensor time out not active
I = Sensor time out active
E. = Sensor time out [sec.]
PP
P
P
P
P
P
P
P
P
F
Running mode
P

REOVIB MFS 268 UL/CSA
Operating Instructions
13
ELEKTRONIK
10.2.5 Pulse feed
Code C. 004, 064
10.2.6 Regulation mode
Code C. 008
Vibrating Frequency [Hz]
Max. output 100...5 %
P P
P
P
P
P
P
P
P
P
P
P
P
F
Feeder amplitude set point
0...100 %
Proportional characteristic (gain)
5...100
Start frequency search
Automatic frequency control
0 = Off
I = On
Integral characteristic (damping)
5...100
0 = control without sensor
I = regulation with sensor
Running mode
Off time delay [sec.]
Invert hopper sensor
(not active)
Running mode
On time delay [sec.]
HOP. = 0 = continuous duty
HOP. = I = pulse feed
P
P
P
PP
P
P
P P

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Operating Instructions
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ELEKTRONIK
10.2.6.1 Instructions for using regulation mode
•An accelerometer e.g. SW 70 must be fitted to the vibratory feeder in order to run in regulation mode.
The accelerometer should have a frequency range corresponding to that of the feeder.
•All vibration signals, that are picked up by the accelerometer, are used by the regulator circuit. Stray
signals generated by neighbouring machinery, a flimsy accelerometer mounting, or an unstable sup-
port frame, can cause incorrect regulation to occur. It is especially important to ensure that there are
no external influences, of this type, during the automatic frequency search routine.
•Resonant frequencies: It is possible to have several vibrating frequencies, where resonance occurs,
depending on the springing and masses of the system. The additional resonant points are at multi-
ples of the dominant resonant frequency. Under extreme circumstances the automatic frequency
search may be unable to differentiate between these frequencies and so in theses instances the fre-
quency must be set manually.
10.2.6.2 Mounting the accelerometer
The accelerometer should generate signals for the movement and acceleration of the feeder, which are
fed back to the regulator circuit of the control unit. Therefore it is very important that no other extraneous
vibration signals are picked up by the sensor
The sensor should be positioned, that it moves
in the same direction as the feeder, ideally in
the same plane as the springs. It should be
fitted on a solid block that will not generate
vibration signals.
The sensor cable need to be fixed with a cable clamp to avoid damage of the cable.
SW SW
SW
100
1
0
0
cable clamp

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Operating Instructions
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ELEKTRONIK
In regulation mode the magnitude of the output signal has a direct affect on the maximum ampli-
tude of the feeder.
On bowl feeders it is advisable to fit the sensor as near as possible to the outside diameter and in this
position it will be subjected to the greatest movement
The control range of the set point will be considerably reduced
when the sensor signal is weak.
s = deflection
Mounting position 1 = small deflection
Mounting position 2 = large deflection
Bowl feeder example
1. small amplitude because
sensor is mounted vertically.
2. larger amplitude because sen-
sor is mounted in the same plane
as the springs.
Linear feeder example
The controller, together with the sensor fitted on the feeder, produce a feed back loop, whereby the signal
generated from the sensor determines the control range of the set point i.e. the regulator controls the
feeder so that the effective value (feeder power or intensity of vibration) relates to the provided set point
value. Because the effective value is dependent on the feeder (frequency, acceleration and amplitude)
and in addition depends on the mounting position of the sensor, the regulator must be adapted to suit the
output control range.
This is achieved by using the parameter P in Menu C 008. The measured sensor signal range is adjusted
by changing this value. In most instances a value of less than 100 must be entered, so that the set point
can reach 100% or can go as high as possible.
When it is not possible to achieve an acceptable range the accelerometer should be mounted in the loca-
tion which gives the greatest movement (see the bowl feeder example).
The importance of scaling this value is demonstrated when, for example, a feeder takes a very long time
to ramp up, after it has been switched on.
1 2
2
1
s
Sensor
Swing Direction
Mounting Block
Moving Part
Fixed Part
1
2

REOVIB MFS 268 UL/CSA
Operating Instructions
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ELEKTRONIK
10.2.6.3 Relationship between acceleration and amplitude
The sensor measures the momentary acceleration of the feeder. It generates a sinusoidal output voltage
signal. The acceleration gets higher as the frequency increases. The sensor signal is greater for a higher
frequency and lower amplitude than for a low frequency with a higher amplitude.
Acceleration
In practice the acceleration is influenced by gravitational force and
the applied amplitude is measured in mm and so this gives the fol-
lowing formula:
[ ]
[
]
[
]
[
]
[
]
49710281,9
2
2
2
3
2
222
mmsHzf
mmsHzf
ga
n
n
=
⋅
=
π
a[g] = Acceleration ( with respect to gravitational acceleration of
9.81 m/s2)
S
n
[mm] = Applied amplitude
In practice where 497 is approximated to 500
this gives, for example:
1.
Vibrating frequency 50Hz
Amplitude 3mm
Or
2.
Vibrating frequency 33Hz Amplitude 5mm
Using an accelerometer with an output signal of 0.3 V/g the sensor generates a peak voltage of 4.5V for a
peak acceleration of 15g (Example 1), corresponding to a 3.18V RMS value.
Example 1: => 15 g=> 4,5 V => 3,18 Veff.
Example 2: => 11 g=> 3,3 V => 2,33 Veff.
Because of the vastly different acceleration values of various feeders there is a big difference in the feed
back signals, which makes scaling necessary.
10.2.6.4 Instructions for setting up the controller in regulation mode
Connect control unit
Install sensor and connect to controller
10.2.6.5 Determining the resonant frequency
Manual setting of the vibrating frequency
It is essential that the output frequency is adjusted with the set point set at a low frequency, otherwise on
hitting the resonant frequency it is possible to achieve a high amplitude with a low output voltage. An ana-
log, effective value, current indicating unit (moving iron meter) must be connected into the output circuit.
Resonant frequency is reached when there is a maximum amplitude for a minimum output cur-
rent.
Automatic frequency search
•The feeder should be empty for a frequency search
•Adjust the set point to zero
•Select regulation mode (Menu C 008, Parameter ACC = I )
•The optimum frequency of the feeder is found, automatically, by initiating the frequency search (Menu
C 008, Parameter A.F.S.). When this has been found the controller resets the set point back to its
original value (0).
f
π
ω
2
=
sa
2
ω =
ga 15
500
350
2
=
≈
⋅
=
where
ga 89,10
500
533
2
=
≈
⋅
=

REOVIB MFS 268 UL/CSA
Operating Instructions
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ELEKTRONIK
10.2.6.6 Optimisating controller in regulation mode
Setting the control range
1. In Menu C. 096 set parameter P (Max Limit) to 50 %
2. Set A (Feeder throughput) to 100%
3. Increase limit P from 50% until the required maximum feeder throughput is achieved
The full set point adjustment range of 0…100% can now be used
Optimising regulation: For unwanted feeder oscillation (hunting) or inadequate feedback regula-
tion for load changes
The response of the regulation circuit can be adjusted in menu C008 using the parameter PA (Propor-
tional characteristic or circuit gain) and IA (Integral characteristic)
In menu C008 reduce PA until the oscillations are reduced
Parameter IA should be set to at 100 if possible
10.2.6.7 Displays
1. The maximum output power of the controller has been reached. The feedback signal from the sensor (acceleration) is too low in com-
parison with the set point. Reduce parameter P in Menu C096 or
C008.
2. The maximum current setting has been reached.
The feedback signal from the sensor (acceleration) is too high.
Changing display:
The regulator oscillates too quickly.
Reduce parameter PA in Menu C008.

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Operating Instructions
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ELEKTRONIK
10.2.7 Display actual current and frequency
Code C. 040
10.2.8 Save selected parameters
Code C. 143
10.2.9 Recall user or factory settings
Code C. 210
10.2.10 Hide parameter menus
Code C. 117
Running mode
P P
P
P
Actual current (display only)
PP
Actual frequency (display only)
I = Hide menus
Running mode
P P
P
P
Save new parameters
Running mode
P P
PP
P
Choose user parameter set
Return to factory
settings
Return to user
settings
Running mode
PP
P
P
P
P
PP
Choose user parameter set

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Operating Instructions
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11.0 Error messages / ERROR reset
Errors are indicated by an alternating code and ERROR display
Overload limit
Output level exceeded e.g. incorrect frequency setting, coil air-
gap to wide.
Short circuit trip
Faulty coil, short circuit or defective cable..
Over voltage
Supply voltage too high or back EMF from the coil at lower fre-
quencies.
Current spike limit
Frequency set too low for installed coil or frequency altered too
rapidly during setting up.
Sensor fault (only when regulation mode is selected)
Accelerometer not working or faulty.
ERROR Reset through Menu C009
Sensor time out
After sensor time out has elapsed
ERROR Reset is achieved by pressing touch panel keys 0 or I during normal operation or by using
Menu C009.
In the event of an error check that this is not caused by incorrect wiring or cable faults. The error mes-
sage, ERROR ACC, can also occur if regulation mode is chosen (in Menu C008) and an accelerometer is
not connected, for example.
Reset the error in the following manner:
ERROR RESET
Frequently appearing Errors, which are not described in this chapter, should be reported to the
manufacturer.
PP
Clear Error