REO REOVIB MFS 368 User manual

MFS368_ANL_rev01.en.doc
18.08.2023
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REOVIB
Control units for vibratory conveyor technology
MFS 368
Frequency converter for vibratory feeders

REOVIB MFS 368
Operating instructions
2
Table of contents
Safety instructions for the user..................................................................................................................... 3
Declaration of Conformity ............................................................................................................................. 6
Changes / Copyright..................................................................................................................................... 6
1.0 General................................................................................................................................................... 7
2.0 Function.................................................................................................................................................. 7
2.1 Track control ....................................................................................................................................... 8
2.2 Operation with two speeds (2
nd
setpoint for coarse/fine switching).................................................... 8
2.3 Control inputs and outputs.................................................................................................................. 9
2.3.1 Enable input..................................................................................................................................9
2.3.2 Sensor input for track control .......................................................................................................9
2.3.3 External setpoint........................................................................................................................... 9
2.3.4 Control output status relay ........................................................................................................... 9
2.3.5 Control output 24 VDC Timeout (IP54)........................................................................................9
2.3.6 Ready relay .................................................................................................................................. 9
2.3.7 Control output 24 VDC Valve (IP54) ............................................................................................9
2.3.8 Thermal switch ............................................................................................................................. 9
2.4 Touch panel ......................................................................................................................................10
3.0 Structure ............................................................................................................................................... 11
3.1 IP54...................................................................................................................................................11
3.2 IP20...................................................................................................................................................11
4.0 Technical data ......................................................................................................................................11
4.1 Load supply requirements ....................................................................................................................12
4.2 Terminal details ....................................................................................................................................12
4.3 Temperature of protective housing.......................................................................................................12
4.4 Coolant type..........................................................................................................................................12
4.5 Current consumption ............................................................................................................................12
4.6 Warning signs.......................................................................................................................................12
5.0 Ordering code (Standard units) ............................................................................................................13
6.0 Possible settings...................................................................................................................................14
7.0 Operating elements ..............................................................................................................................16
7.1 Setting behaviour..............................................................................................................................16
7.1.1 Parameter setting example............................................................................................................17
7.1.2 External setpoint example .................................................................................................................17
8.0 Commissioning.....................................................................................................................................18
8.1 Preparatory measures.......................................................................................................................18
8.2 Operating frequency of the feeder coils............................................................................................18
8.3 Measurement of output voltage and output current..........................................................................18
9.0 Settings.................................................................................................................................................19
9.1 Notes on controller mode..............................................................................................................19
9.2 Mounting the accelerometer..........................................................................................................19
9.3 Correlation between acceleration and vibration amplitude...........................................................21
9.4 Determining the resonant frequency.............................................................................................21
9.5 Commissioning the control unit in control mode ...........................................................................22
10.0 Troubleshooting ..............................................................................................................................23
11.0 Housing version connection ...............................................................................................................24
12.0 Connection of control cabinet version ................................................................................................25
13.0 Dimension drawing.............................................................................................................................27
14.0 Assembly instruction...........................................................................................................................30
A 1.0 Accessories / Options .......................................................................................................................31

3
Safety instructions for the user
IMPORTANT!
READ CAREFULLY BEFORE USE AND KEEP FOR FUTURE REFERENCE!
This description contains the information required for correct use of the products described in it. It is
intended for technically qualified personnel.
Qualified personnel are persons who, because of their training, experience and instruction, as well as
their knowledge of applicable standards, regulations, health and safety requirements and operating
conditions, have been authorized by those responsible for the safety of the equipment to carry out
required activities at any time, and who can recognize and avoid possible hazards in the course of these
activities (definition of qualified employees according to IEC 364).
General safety instructions
The following instructions are provided for the personal safety of operating staff and also for the safety of
the products described and connected equipment.
WARNUNG
Hazardous voltage
Non-observance can result in serious or fatal injury as well as material damage.
- Isolate from the mains before installation or dismantling work, as well for
post-installation modifications.
- Observe the accident prevention and safety rules applicable for the specific
application
- Before putting into operation, check if the rated voltage for the unit conforms with
the local mains supply voltage.
WARNING!
Electric shock in the absence of earthing
If the protective earth connection of devices with protection class I is missing or
incorrectly executed, high voltages may be applied to exposed parts and the housing
which, if touched, can result in serious or fatal injury.
- Ground the unit correctly.
WARN
ING
Electric shock in case of damaged equipment
Improper handling may result in damage to equipment. If units are damaged, dangerous
voltages may be present on the housing or on exposed components which, if touched,
can result in serious or fatal injury.
- During transport, storage and operation, observe the limit values specified in the
technical data.
- Do not use damaged equipment.

REOVIB MFS 368
Operating instructions
4
WARNING
Electric shock if the cable shield is not connected
Capacitive coupling can cause life-threatening touch voltages if the cable shields are not
connected.
- Connect cable shields and unused cores of power lines to earthed housing potential
on at least one side.
WARNING
Arcing when disconnecting a plug connection during operation
Disconnecting a plug connection during operation can cause an electric arc, which can
result in serious or fatal injury.
- Only open plug connections when they are de-energised.
WARNING
Before opening the housing, pull out the mains plug
Before any intervention in the unit, allow at least 5 minutes for the capacitors to
discharge.
WARNING
Injury due to hot surfaces
In case of malfunction, overload and insufficient ventilation, contact with a hot surface may
cause skin burns. With the 6A and 8A versions, the heat sink temperature can reach 70 °C
during operation.
WARNING
Material damage due to incorrect output voltage
Independent of the input voltage, the frequency converter's output voltage is 205 VAC when
delivered. When using 110 VAC feeder coils, the output voltage must be set with parameter:
"Umax", otherwise the feeder coil may be damaged.
WARNING
Improper assembly of parts
Unsuitable assembly tools, screwing methods, or non-observance of the assembly
instructions can lead to falling parts or equipment.

REOVIB MFS 368
Operating instructions
5
WARNING
Influence of electromagnetic fields on active implants
Frequency converters generate electromagnetic fields (EMF) during operation.
Electromagnetic fields can affect active implants, e.g. pacemakers. This puts people with
active implants in the immediate vicinity of an frequency converter at risk.
- As the operator of an EMF-emitting installation, assess the individual risk to persons
with active implants.
WARNING
Total failure of power supply
Interrupting and restoring the power supply to the control unit can lead to hazardous
situations. In particular, once the power supply has been restored, the system can restart
without additional enabling.
WARNING
Unintentional or accidental breach of safety
An unintentional or accidental change of the unit's parameters can disable the protective
functions of the control unit.
WARNING
Unrecognised dangers due to missing or illegible warning signs
Missing or illegible warning signs can lead to hazards going unrecognised. Unrecognised
hazards can result in accidents with serious or fatal injury. See Chapter 4.6 "Warning signs".
Missing signs must be replaced.
CAUTION
Equipment damage due to unsuitable screwing tools
Unsuitable screwing tools or unsuitable screwing methods can damage the screws of the
unit.
- Use screw drives that exactly match the screw head.
- Tighten the screws with the torques specified in the technical documentation.
C
AUTION
Material damage due to loose power connections
Insufficient tightening torques or vibrations can lead to loose power connections. This may
cause fire damage, defects in the unit or malfunctions.
- Tighten all power connections to the prescribed tightening torques.
- Check all power connections at regular intervals, especially after transport.

REOVIB MFS 368
Operating instructions
6
NOTE
Current consumption
The current specified in the technical data is the maximum permissible value for the unit
over the entire input voltage range. A higher current than specified can lead to malfunctions
and failure. See also chapter 4.5 "Current consumption".
Intended use
The units described here are classed as electrical equipment for use in industrial plants.
They are designed for controlling vibratory feeders.
The housing version (IP54) is not suitable for installation in control cabinets.
Failure to maintain the ambient temperature may result in a shortened life span.
Please mount the units on a vibration-free surface.
Declaration of Conformity
We declare that these products conform with the following standards:
REO AG, D-42657 Solingen
Changes / Copyright
We reserve the right to make changes to the technical design and documentation without prior notice.
REO AG reserves the copyright to these instructions. Reproduction, computerisation and filming of any
kind is not permitted without written consent.
Guideline:
Stan
dard:
2014/30/EU
EMC
EN 61000
-
6
-
4:2007 +A1:2011; EN 61000
-
6
-
2
:2019
2014/35/EU
LVD
EN 62477
-
1:2012 +A11:2014 +A1:2017
2011/65/EU
RoHs
RoHS
COMPLAINT

REOVIB MFS 368
Operating instructions
7
1.0 General
The control unit generates an adjustable output frequency for the vibratory feeder independently of the
mains frequency. The PFC circuit on the input side ensures a constant output voltage both at an input
voltage of 110 V and 230 V.
Mains voltage fluctuations have no influence on the feed rate. In addition, the operating mode “Amplitude
control" combined with an accelerometer enables a constant feed rate even with changing feeder loads.
In this operating mode, the feeder's resonant frequency can also be determined and the output frequency
for the feeder continuously tracked.
An integrated track control enables a backlog circuit to be set up for material control via a PNP distance
sensor.
For the operation of a blowing air valve, a 24 VDC output is available in the IP54 housing version.
The unit is operated via an LC display and programming buttons. All the settings can be done using this
display without opening the housing.
Special features:
•Output voltage up to 205 VAC, independent of
mains supply.
•Mains frequency independent, adjustable
output frequency
•Min and max limits of the frequency range
adjustable
•Adjustable current limit for maximum coil
current
•Constant feed rate in the event of mains
fluctuations
•Control of the resonant frequency
•Status relay On / Off
•Ready relay (IP20 only)
•Track control
•24 VDC Output for e.g. air valve (IP54 only)
•Four application-specific parameter sets can
be stored
•With option "Interface operation via field bus"
•Thermal switch input for coil temperature
monitoring
2.0 Function
The controller generates an adjustable output voltage with an adjustable output frequency that is
independent of the mains supply. The input-side PFC circuit ensures a constant output voltage at an input
voltage of 99 V to 264 V. The output voltage is changed to control the feed rate. The output can be
switched on or off via the keyboard or an enable input by a higher-level external control unit. After
switching on the unit, the output is ramped up over an adjustable time ramp (soft start) or ramped down
after switching off (soft stop). The unit can be operated in a manual mode at constant output frequency or
in controller mode with amplitude control and frequency control. For controller mode an acceleration
sensor e.g. SW10 is required, which is mounted on the vibrating part of the feeder. This sensor detects
the feeder's vibration movement and reports this actual value back to the internal controller. In this
operating mode, in addition to the amplitude control, the feeder's resonant frequency is determined and
adjusted accordingly with different loads, so that a constant flow of parts results with an optimum vibrating
frequency of the feeder. The setpoint for the feed rate is specified as standard via the internal display but
can also be supplied externally by means of a 0...10 V or 0/4...20 mA DC signal. For feed rate control, an
integrated track control allows the realisation of a material flow control. This function requires an external
24 V PNP distance sensor to detect the conveyed parts. This creates a defined material flow via
adjustable time stages for switch-on and switch-off delay. The "time out" function can be used to monitor
Housi
ng version
Control cabinet version

REOVIB MFS 368
Operating instructions
8
t ON
t OFF
Sensor
Feeder
ON
OFF
ON
OFF
Soft Start
Soft Stop
whether parts pass the sensor within a period of time (e.g. no-load signal). As an alternative to the
material flow control, the sensor input can be used for switching to a second, internally adjustable
setpoint, e.g. to realise a "fast/slow" function. In parallel with control of the feeder, a 24 V DC output is
available for the IP54 housing version, which can control a blowing air valve to support the parts flow.
This output can switch on before the feeder starts and switch off with a time delay after the feeder has
switched off. The time delays are adjustable. Depending on the conveyor, the nominal unit current can be
set between 5% and 100%. If the current limit is reached, the output voltage is reduced so that the current
limit is not exceeded. Sensitive settings such as current limit and frequency limits are combined in a limit
menu. Settings in the menu can only be made after enabling the key number in the "Service menu". In the
service menu, the current settings can also be saved and the factory settings of the units can be restored.
2.1 Track control
Via internal, adjustable
time steps ("t on" and "t
off"), the output is
switched ON or OFF
depending on the
material level measured
via a track component
sensor. The level of the
conveyed material thus
varies around the
position of the track component sensor installed on the feeder. The output of the control unit is switched
on when the conveyed material falls below the sensor and the set switch-on time delay has elapsed. If the
conveyed material exceeds the position of the sensor, the control unit's output is switched off after expiry
of the switch-off delay (indication in the display: " full"). Gaps in the flow of conveyed material reset
the time stages. The times are always determined by the last or first conveyed part.
The switch-on or switch-off delay time is set in the programming menu. The run-down of the internal time
stages is shown by the clock in the display.
When the feeder is switched on, a further time stage "sensor timeout" can be started, which switches
the feeder off after an adjustable time (1...240 sec.) if no material parts have passed the sensor within this
time. When the feeder is switched off, the status relay also switches off. The display then shows "Track
Timeout and Info 0001" flashing alternately. This function is optional and must be activated in the track
control menu with function "Timeout On" = .
2.2 Operation with two speeds (2
nd
setpoint for coarse/fine switching)
Instead of track control, coarse/fine operation can also be used. Switching to the second setpoint is done
via the sensor input that is otherwise used for track control. Switching can be done with a contact or an
external 24 VDC signal voltage. If a 24 V signal is present, the system switches to the second setpoint
"Fine" without any time delay.
(The track control function is not available.)

REOVIB MFS 368
Operating instructions
9
2.3 Control inputs and outputs
2.3.1 Enable input
Potential-free contact or 24 VDC signal.
External control option for switching the power output On/Off, e.g. for linking several units or control by a
PLC.
2.3.2 Sensor input for track control
Sensor for monitoring the material level in a backlog section or input for switching to a second setpoint.
24 VDC (PNP).
2.3.3 External setpoint
The feeder amplitude set point can be provided from and external, analogue reference value 0...10 VDC,
0/4...20 mA. The parameter "External setpoint" must be activated in the “Feeder" menu, for an external
setpoint source to be used.
Adjust the desired minimum value using the "arrow keys". Switch only now to the external setpoint. The
adjusted value remains at setpoint "0" as a minimum.
2.3.4 Control output status relay
Relay contact 250 V (changeover contact (IP20))
Relay contact 24 V (normally open contact (IP54))
The relay is energised while the feeder is running, and is de-energised if there is no enable signal or fault
message.
2.3.5 Control output 24 VDC Timeout (IP54)
The "Timeout" message is active if no material is detected by the sensor after the set time. (Adjustable
with parameter “Timeout On")
2.3.6 Ready relay
Relay contact 250 V (changeover contact). If an error occurs (e.g. overload error), or if the current limit is
reached, contact 44,45 opens. (Only for IP20)
2.3.7 Control output 24 VDC Valve (IP54)
Output for a blowing air valve.
"On" with feeder start, "Off" 4 sec. after feeder stop (factory setting).
Switch-off and switch-on times can be adjusted with the parameters "Air lead time" and "Air delay time".
2.3.8 Thermal switch
The frequency converter has a special input for the connection of a thermal switch, which can be attached
to the magnet by the user. This can effectively protect the conveyor system from overheating.

REOVIB MFS 368
Operating instructions
10
2.4 Touch panel
The units are operated via the operating keys and the text/graphic display.
: 90.0 %
50,5 Hz
A
Operatingdisplay
Conveyorsetpoint
Frequencyconveyor
Status line
Frequency:
I
0
Start /Reset
Stop
Key Function for menu navigation Function for changing
values
Arrow keys
Select
menu item
Cha
ng
e values
F
key
One menu level back
Abort during value
entry
P key
Open sub
-
menu
Apply value
100
STOP
A Conveying capacity
Limits
Time out
Information
Language
Sym
"Fun
"
bols
ction
Symbols of the status line
Locked
( )no enable
Stop-Button
TrackCtrl.
„Busy“on storage
Keyset
Service enabled
Mainsundervoltage
Feeder