Rodix FEEDER CUBE FC-200-2 User manual

ADJUSTMENTS & SET UP
UNITS A & B
Model - FC-200-2
P/N 121-000-2001
Listed, File No. E183233
Input: 120 VAC, 50/60 HZ.
Double Unit Fuse Sizes:
Unit A = 10 & Unit B = 5 AMPS
Output: 0-120 VAC
80% Duty Cycle at Rated AMPS
© 2009 RODIX INC.
ELECTRICAL CONNECTIONS:
Make the electrical connections prior to plugging the
control in and turning it on. Once connections are
made to the feeder control, any desired software
settings changes can be made with the cover closed.
1. PART SENSOR
(Photo-sensor or Proximity Switch)
Connect a three wire, current-sinking(NPN)or current-
sourcing (PNP) sensor as shown on the enclosed
wiring diagram. The sensor must be able to operate
on 12VDC and switch 3mA. The default setting is a
universal sensor input.
2. RUN JUMPER INPUT
A Run Jumper is factory installed as shown on the
enclosed wiring diagram.
If the Feeder Cubeis to be controlled by a relay
contact, switch or other device, replace the factory-
installed jumper with the controlling "Run Contact" at
terminals 8 and 9 of TB2 (small terminal strip). The
contact must be able to switch 12VDC and 1.0 mA.
The control will then run only when the contact is
closed and the part sensor is calling for parts.
In the High/Low parts sensing mode, a second parts
sensor can be connected to the run contact input in
place of the run jumper. The parts sensor should be a
PNP type and have the same logic (L.O. or D.O.).
3. AUXILIARY OUTPUT
The Feeder Bowl/Hopper Interlock feature(TB2-2 &3)
can be connected to a Rodix FC-40, FC-90 or FC-200
Series control when control of a bulk materialhopper is
needed. The interlock will prevent the hopper from
operating anytime the bowl is turned OFF or in
"STAND BY" mode. The Interlock output is capable of
12 VDC at 50 mA. The Aux output is capable of
switching 100 mA at 12 or 24VDC if an external power
supply is used. For further information download (or
request from RODIX) the FC-200 Series Advanced
Features Application Note. The Interlock output can
be used to drive a solid state relay that can operate
auxiliary equipment such as an air valve. Two FC-200
Series controls can be interlocked. Download the
FC-200-2 Application Note for wiring information.
A 0.6 Watt 12VDC solenoid can be driven by the
Aux output. Note: a diode must be placed across
the solenoid in reverse polarity to adsorb the
energy when the solenoid is de-energized. Failure
to do so voids the warranty. See the wiring
diagram for proper connections.
4. LINE VOLTAGE CONNECTIONS
The 120VAC models can operate from a power
line providing from 108 to 132VAC. The plug can
be connected to a standard NorthAmericanoutlet.
The outlet should be properly grounded. The
240VAC models can operatefrom 200to 265VAC.
The control should be grounded properly.
5. INTERNAL POWER SUPPLY
At the rated line voltage, the line isolated power
supply is capable of providing a combined total
current of 65 mA at 12 VDC (35 mA when using a
200VAC line on 240VAC models). The total
current includes the parts sensor,CFRsensorand
any auxiliary output accessories that are
connected to the Bowl/Hopper Interlock terminals.
6. OUTPUT CONNECTIONS
The 120VAC models in a general purpose
enclosure provide a standard North American
outlet for connection to the feeder.
7. EXTERNAL SPEED CONTROL
CONNECTIONS
The following methods of remote power level
control can be utilized when desired:
A. The Constant Feed Rate (CFR) feature: Attach
a CFR sensor to terminals TB2-12 (blue) andto
TB2-9 (brown).
B. 4-20mA or 0-20mA signal can be connected by
bringing the positive signal wire to TB2-12 and
ground to TB2-11.
C. 0-5VDC Analog input signal can be connected
to connector H1. This can be selected to
ignore any connections to the CFR/4-20mA
input. Control cable 123-145 sold separately.
Section 13 explains how to enable these features.
FC-200-2.doc 11/16/2009 Page 1

CONTROL ADJUSTMENTS:
DISPLAY MESSAGES: The normal operating display
shows the status of the control with regard to input
signals and control settings. See the “Menu Layout”
page for message details.
SOFTWARE ADJUSTMENTS: Once the electrical
connections have been made, the control settings can
be adjusted as desired through the control’s menu.
NAVIGATING THE CONTROL MENU: The control
uses four programming keys to program the control.
The fifth key, “1/0” is for on/off operation.
A. The ENTER key allows entry to the menu and
access to adjust each setting. Pushingtheenterkey
once allows entry to program or the security code if
the security feature has been enabled. Once inside
the menu, the enter key selects a menu item or a
parameter to adjust.
B. The BACK key moves the current menu location up
one level higher than it was before. It is also used to
get back to the normal operating display.
C. The Arrow Down key allows the user to step down
through the program menu or to decrease a setting.
D. The Arrow Up key allows the user to step up
through the program menu or to increase a setting.
E. The 1/0 key allows the user to temporarily stop or
restart the control’s operation.
See the “Menu Layout” page for the menu structure.
When in the menu mode and no keys are pressed for 1
minute, the display reverts to the normal operating
display.
8. PARTS SENSOR SET UP
The “Function Settings” menu controls the parts sensor
operation.
A. The “NORMAL” setting works with most NPN and
PNP sensors. If the sensor input does not seem to
switch, set the sensor type to NPN or PNP to match
the sensor type. The sensor input switching can be
monitored on the LCD; S=0 or 1.
B. The control comes preset to work with inverted
sensor logic. Set control for the type of sensor logic
being used: “Normal” for through beam optics or
“Inverted” for proximity or retro-reflective optics.
9. RUN MODE SETTINGS
The “Function Settings” menu controls the feed logic.
A. The control comes preset for normal on/off sensor
operation.
B. The “Constant On” feature can be used to keep the
bowl running while the Aux output switches a device
(air valve) to blow the unneeded parts back into the
bowl.
C. The “2-Speed” feature allows the bowl to slowly
trickle parts on low speed and to feed parts at full
speed when parts are needed. The RUN input
requires a PNP sensor.
D. The “high/low” function keeps the parts level
between the high and low parts sensors on the
track. The second sensor (PNP) gets installed in
place of the run jumper.
E. The control comes preset to disable the “empty
bowl timer.” The timer may be enabled so the
bowl will stop feeding when the parts sensor has
seen no parts. The timer is adjustable from 5 to
240 seconds. The time adjustment for the empty
bowl timer can be adjusted under the “Timer
Settings” menu. The auxiliary output can be set up
to turn on a signaling device. See the section that
describes the auxiliary output for more details.
10. AUXILIARY OUTPUT SET UP
The “Function Settings” menu controls the auxiliary
output (Aux Out) operation.
A. The control comes preset for the auxiliaryoutputto
turn on and off with the output of the feeder.
B. The auxiliary output signal canbeinvertedfrom the
output of the feeder. Set the “Aux Out” parameter
to “Invert” to activate it.
C. The auxiliary output signal can be set as an alarm
to indicate when the bowl out-of-parts timer has
stopped the feeding of the bowl. Set the “Aux Out”
parameter to “Alarm” to activate it.
D. The auxiliary output signal can be set to invert the
alarm when the bowl out-of-parts timer has
stopped the feeding of the bowl. Set the Aux Out
parameter to “Inv Al” to activate it.
E. The auxiliary output signal can be set so that a
customer supplied air solenoid is activated 1
second before feeding begins and continue for 4
seconds after feeding ends. This featureishelpful
for parts orientation. Set the “Aux Out” parameter
to “Air Jet” to activate this feature.
11. PULSE MODE OPERATION
The “Power Settings” menu controls the pulse mode
settings. The pulse mode can be set for 120, 60, 60-
reverse, 40 or 30 pulses. The correct pulse setting
depends on what the feeder was tuned to operate at.
A. The control comes preset at 120 pulses per
second.
B. 60 pulses per second can be selected from the
pulse settings menu.
C. 60 reverse indicates the current flows in the
opposite direction through the feeder coil(s). This
can be helpful for two different applications.
When a changing the amplitude on one feeder
changes the amplitude of the other feeder,
reversing the 60 pulse output sometimes can
solve a mechanical interaction between two
feeders on the same machine table. Secondly,
the apparent power from the utility can be
reduced if the power can be balanced when
some feeders are set to 60 pulse andsome are
set to 60 reverse pulse. To activate it, set the
pulse mode to “60 Rev.”
D. 40 or 30 Pulse can be selected in the pulse
mode menu. For useful vibration, the feeder
has to have the proper amount of springs.
12. SOFT-START
The start-up of the control output can be adjusted
to ramp up to the desired output level instead of
starting abruptly. Soft-start keeps parts from
falling off the tooling, reduces spring shock and
hammering when the control turns ON. The soft
start setting can be found under “Power” menu.
The soft start can be set from 0.0 to 10.0 seconds.
13. EXTERNAL SPEED CONTROL
The feeder control’s power level can be controlled
by an external signal from a PLC or other source.
Selections are made under the “Power Settings”
menu. See section 7 for connection details.
A. The Constant Feed Rate (CFR) feature comes
preset in the control. Attach a CFR sensor to
terminals TB2-12 (blue) and to TB2-9 (brown).
Turn the power switch on, and the control
should display “CFR” in the status line showing
that it is connected. Set the power setting to
the desired feed rate. The control uses
information from the CFR sensor to maintain a
consistent level of vibration.
B. A 4-20mA or 0-20mA signal from a PLC canbe
used to remotely vary the output of the control
instead of the keypad. The “Ext Sig” setting
must be set to enable it. After the feature is
selected, it will automatically turnON whenever
a signal is applied to the control (terminals11&
12 of TB2). At 0mA the keypad may be used.
The 0-20/4-20mA input is transformer isolated
from the power line.
C. 0-5VDC Analog input signal may be applied to
control the feeder amplitude.
FC-200-2.doc 10/22/2009 Page 2

14. LINE VOLTAGE COMPENSATION
Fluctuations in the line voltage can cause a feeder bowl
to vary its feed rate. The line voltage compensation
feature adjusts the control's output to help compensate
for fluctuations in the supply voltage. If it becomes
necessary to disable this feature, the LV Comp setting
can be changed to “Disable”. It is found under “Power
Settings” menu.
15. LIMITING THE MAXIMUM
OUTPUT OF CONTROL
The maximum power (Max Pwr) setting can be lowered
to keep the operators from setting a higher thandesired
feeder vibration. The maximum power setting can be
found under the “Power Settings” menu. It can be
adjusted from 100.0% down to 40.0%.
16. POWER SETTING
The output power is controlled by the UP and DOWN
arrow keys. The power setting can be adjusted unless
the security feature lock has been selected. Once the
proper security code has been entered, the power may
be adjusted under the “Power Settings” menu. Note:
the power setting may not be adjusted above the
maximum power setting or below the minimum power
setting level. The max and min power settings
automatically change the power setting to keep it in the
correct range.
17. SETTING THE MINIMUM
OUTPUT OF CONTROL
The minimum power (Min Pwr) output level can be
adjusted to the desired low level of vibration. The
minimum power setting can be found underthe “Power”
menu. It can be adjusted up from 0.0% to 60.0%.
Note: the software does not allow the minimum level to
be within 6.4 counts of the maximum level.
18. SETTING THE TIME DELAYS
The ON and OFF sensor time delays are set
independently for a period of 0-25 seconds. The time
delay settings can be adjusted to provide the best
individual response for the feeder. The time delays can
be found under the “Timer Settings” menu.
19. DIAGNOSTICS
A. The first menu item under the “Diagnose Info” menu
shows the software revision level.
B. The next item under the software revision level
shows certain software registers that may be helpful
to Rodix staff while troubleshooting over the phone.
20. SECURITY SETTINGS
The “Security Settings” menu controls access to the
control settings. When enabled, a security code
number may be chosen from 00 to 255. The preset
code is 00.
A. The “Unlock” setting allows menu access for all
control adjustments and features.
B. The amplitude only (Amp Adj) adjustment allows
operators to adjust the amplitude through the
normal operating display. All other settings can
only be adjusted after entering the security code.
C. The “Lock” setting locks the control from any
adjustment without the use of the security code.
If the security code has been forgotten, press the
enter key to bring up the security code. Next, push
and hold the back key until the menu appears. This
sequence bypasses the security code.
21. DEFAULT MEMORY
Occasionally it is helpful to get back to a known
setting. Once a feed system has beenset upproperly,
it can be saved into the “user default” memory. If an
operator makes wrong adjustments, the “Restore
User” feature can restore the control to a known good
set up. The restore factory defaults selection will put
the original factory settings into memory.
22. LANGUAGE
The programming menus canbedisplayed in English,
French, German (Deutz), and Spanish (Espanol).
23. INSTALLING THE CFR SENSOR
Note: Failure to adequately prepare the feeder’s
surface properly may result in a Constant Feed Rate
(CFR) sensor that will not bond to the feeder. The
sensor will not be mounted until step C-6.
A. ORIENT THE SENSOR so that its sensitive
axis is in the same direction as the vibration of
the feeder. The double-ended arrow in figure 1
shows the sensor’s sensitive axis. Align the
sensitive axis of the sensor in the same direction
as the vibration (see figure 2). The sensor must
be oriented correctly for proper operation.
B. CHOOSE A LOCATION for mounting the
sensor on the feeder that is smooth and that will
allow the adhesive on the sensor to bond. Avoid
mounting the sensor over ridges and bumps which
can reduce the ability of the adhesive to stick to
the feeder. The correct location will also have
enough space for the sensor’s cable to hang
straight down without touching anything else.
Fig. 2 The arrow shows the direction of vibration
which is at a right angle to the spring pack.
C. SURFACE PREPARATION of the feeder is
crucial for proper bonding between the sensor and
the feeder. Please follow these steps completely.
1) The feeder should be kept between 70°-
100°F (21-38°C) for ideal tape application.
2) Clean a 3.5” (10cm) circular area with a
solvent like isopropyl alcohol that will not
leave a residue. As a rule of thumb, the
area can be considered clean when after
cleaning the area with a solvent-saturated,
white paper-towel, the towel is as clean as it
was before wiping.
FC-200-2.doc 10/22/2009 Page 3
Sensitive
Axis of
Vibration
Fig. 1
Actual Size
1.375
Sensitive
Axis of
Vibration

3) Using a good amount of pressure, polish the
cleaned, circular area of the feeder using a
scratch pad or steel wool. Repeat step 2, and
then go to step 4.
4) Wipe the cleaned surface with an alcohol wipe or
with a 50/50 isopropyl alcohol/water combination.
5) Dry the surface thoroughly using a low lint cloth or
a clean paper towel.
6) Remove the vibration sensor from its protective
packaging. Remove the liner from the adhesive
backing. Avoid touching the tape. Align the
sensor as shown in figures 1 and 2. Apply the
vibration sensor to the prepared area of the
feeder. Press the sensor very firmly onto the
feeder surface for at least 10 seconds.
7) Allow the vibration sensor at least 20 minutes to
cure before operation. Note it takes 72 hours for
the adhesive to fully cure at 70°F (21°C).
Alternatively, #8 or M4 screws can be used to mount the
sensor to the feeder. The hole centers are 1.375”
(3.49cm) apart.
D. ROUTE THE SENSOR CABLE to protect it from
strain due to vibration. The cable that attaches to the
sensor will not break from normal vibration; however,
some care should be used when routing the sensor
cable from the sensor to the control. The cable should
hang straight down from the sensor without touching the
feeder bowl or anything else. Then, the sensor cable
should curve towards the power control with a bend
radius larger than 3” (8cm).
Use a cable tie and an adhesive-backed mount to
attach the sensor cable to the side of the drive base.
See Figure 2. Clean the mounting area before applying
the adhesive-backed mount.
E. CONNECT THE SENSOR to the control. The
sensor’s brown wire connects to +12VDC at TB2-9. The
blue wire connects to the signal input at TB2-12.
F. Section 13 explains how to enable the CFR feature.
WARNING:
Fuses should be replaced with Bussman ABC or
Littelfuse 3AB "Fast Acting" type or equivalent of
manufacturer's original value.
Mounting this control on a vibrating surface will
void the warranty.
WARRANTY
Rodix Control Products are Warranted to be free from
defects in material and workmanship under normal use
for a period of two years from date of shipment. For the
full description of the warranty, terms, and software license,
please contact the factory.
For assistance installing or operating your Rodix Feeder
Cube® please call the factory or visit our web site.
Technical help is available to answer your questions and
fax any needed information. To return a control for IN or
OUT of warranty service, please ship it prepaid to:
Rodix Inc., ATTN: Repair Department
If under warranty, Rodix will repair or replace your control
at no charge; if out of warranty, we will repair it and you will
be billed for the repair charges (Time and Material) plus the
return freight. Quotes for repairs are available upon
request. A brief note describing the symptoms helps our
technicians address the issue.
Feeder Cube® is a registered TM of Rodix Inc.
Banneris a registered Trademark of Banner Engineering Corp,
9714 10th Ave, Minneapolis, MN 55441
DIMENSIONS
Rodix Inc.
2316 23rd Ave., Rockford, IL 61104
Toll free 800-562-1868, fax [phone]
[e-mail]
www.rodix.com
FC-200-2.doc 11/1/2011 Page 4
-
12
123-170
+
910
Bu or #2
11
TB2
Br or #1

FEEDER BOWL/HOPPER
INTERLOCK
FC-200/90 PLUS SERIES TB2, OUTPUT
9
FC-200/90 PLUS SERIES TB2, INPUT
B)
7
8
9
LOW CURRENT SWITCH
7
A)
8
RUN JUMPER INPUT
FC-200/90 PLUS SERIES TB2
5-30 VDC INPUT VOLTAGE OFF/ON
CONTROL
FC-200/90 PLUS SERIES TB2
321
LOW VOLTAGE INPUT
SWITCHING
(DC Voltage from PLC)
C)
987
+
-
6
77 4
8
(LCD)
12
A2
GateA1
TRIA C
1
6
(Keypad)
H1
8
P1
4
(SMALL)
( L CD)
TERM. STRIP
TB2
AUX FEATURE
AUX
RUN
JUMPER
12
CFR SENSOR
Option 123-170
Br
Bu
11
211
1
4
5 312 9
10
37
28
SIG
159
6
LOAD
10
Wh #14
Bl #14
LINE VOLTAGE
ACCEPTS BOTH OPTIC AND PROX SENSORS, NPN OR PNP.
P/N 111-500
G
C ONNEC T S INK OR S OUR C E WIRE TO "S IG" INP UT
TERM. STRIP
SIG
P/N 24-200
INTERLOCK OUTPUT
OPTIC SENSOR
-
AC HOT
FC -200 Series
CHASSIS
BOWL/HOPPER
FUSE
BANNER
WHT
+
COM
OUTPUT POWER
+
AC COMMON
-
BRN
BLU
SM312FP1H
MAS TER C ONTROL
HOT
S
TB2
+
(TALL)
-
4-20mA
SENSOR OPTION
S
+
TB1
- -
OPTICS
+
POWER
TB1
-
GND
Bl #14 Or #14
+
Bl #14
Bl #14
Wh #14
Wh #20
Vi #20
-
S
Wh #14
PNP
+
NPN
RUN
Optional
0-5VDC
Input
H3
H4
A2
GateA1
TRANSFORMER
TRIAC
UNIT A UNIT B
1
H1
(Keypad)
P1
(SMALL)
TB2
AUX FEATURE
TERM. STRIP
RUN
JUMPER
AUX
CFR SENSOR
Option 123-170 Bu
Br
111
211 4
512 9
10
38
37
SIG
2
591
6
LOA D
10
ACCEPTS BOTH OPTIC AND PROX SENSORS, NPN OR PNP.
LINE VOLTAGE
P/N 111-500
Yl #20
COM
CONNECT SINK OR SOURCE WIRE TO "SIG" INPUT
G
TERM. STRIP
SIG
Rd #20
P/N 24-200
OPTIC SENSOR
AC HOT
FC-200 Series
CHASSIS
FUSE
BANNER
BOWL/HOPPER INTERLOCK
+
OUTPUT POWER
WHT
COM
+
GND
AC COMMON
BLU
-
BRN
SM312FP1H
HOT
HOT
S
TB2
-
(TALL)
4-20mA
SENSOR OPTION
S
TB1
+
--
OPTICS
+
INPUT POWER
POWER
GND
TB1
-
+
Or #14
Wh #14
Bl #14 Bl #14 Vi #20
Bl #14
Wh #20 Wh #14
S
-
PNP
RUN
NPN
+
Optional
0-5VDC
Input
H4
H3
TRANSFORMER
RODIX, INC.
2316 23rd Ave., Rockford, IL 61104
Toll Free [phone], FAX [phone]
Email custserv[email protected]
www.rodix.com
FC-200-2.doc 11/1/2011 Page 5
RODIX INC.
FEEDER CUBE


FC-200 Series
WIRING DIAGRAM
MODEL INPUT VAC AMPS OUTPUT
FC-200-2 120 VAC 10
/
5 0-120




FC-200 Series Menu Layout
Power Settings
Power [ 0.0 to 100.0 ] % (amplitude or power setting)
Max Pwr [ 100.0 to 20.0 ] % (maximum power level)
Min Pwr [ 0.0 to 60.0 ] % (minimum power level)
Soft [ 0.0 to 10.0 ] Seconds (soft start time) (Default 0.1)
Pulse Md [ 120, 60, 60 Rev, 40, 30 ] (magnetic pulses per second)
Ext Sig [ CFR, 4-20mA, 0-20mA, 0-5VDC ] (external amplitude input)
LV Comp [ Normal, Disable ] (line voltage compensation)
Pw Curve [ Normal, Linear ] (amplitude power curve slope)
Timer Settings
On Delay [ 0.0 to 25.0 ] Seconds (Default 2.0)
Off Dly [ 0.0 to 25.0 ] Seconds (Default 2.0)
Empty B [ 5 to 240 ] Seconds; (empty bowl timer or jam timer) (Default 10)
Function Settings
Sens Log [ Normal, Inverted ] (sensor logic)
NPN/PNP [ Normal, NPN, PNP ] (sensor output type) Note: Normal uses active input, PNP/NPN.
Run Mode [ Normal, Constant On, 2-Speed, High/Low ] (how sensors control the feeder)
Run Input [ Normal, Disable] (Disable causes the control to ignore the Run Input)
Empty B [ Normal, Enable ] (empty bowl timer reaction)
Aux Out [ Normal, Inverted, Alarm, Alarm Inv, Air Jet ] (auxiliary output logic)
Diagnose Info
Software [ Revision Level ] (software revision level)
I/O Stat [xxxxxxxx ] (factory use)
Security Settings
Keypad [ Unlock, Amp Adj, Lock ] (security limits access to allowable features)
Sec Code [ 00 to 255 ] (security number)
Default Settings
User Restore [ ‘Enter’ Restores User Defaults ] (restores final set-up for feeder)
User Save [ ‘Enter’ Saves User Defaults ] (saves final set-up of feeder)
Factory Restore [ ‘Enter’ Restores Factory Defaults ] (restores as it came from the factory, bold text)
Language Select
Language [ English, Spanish, French, German ] (select desired language)
Normal Display Message Priority
The normal operating display shows the status of the control with regard to input signals and control settings. They are
listed from highest to lowest in priority. The highest priority message takes precedence over all other messages.
OFF The 1/0 button has been pushed to disable control operation.
Stop The run jumper has not been not made.
Full The parts sensor logic is telling the control to stay off.
Empt Empty bowl timer has timed out because parts did not pass by the parts sensor for a certain time.
Ext. An external signal is in control of the speed input.
Low Low Speed used when 2 speed has been selected and the sensor is not made.
0Spd The output is off because the output is set to 0.0%.
CFR The CFR function is operating, and the feeder is running normally.
Run The feeder is running normally. Sensor Status Messages
S=1 The parts sensor indicates parts are needed.
S=0 The parts sensor indicates parts are not needed.
= The Flashing equal sign indicates the parts sensor is timing prior to changing the output state.
Power Setting Messages
Mn Mn indicates the power setting is at the minimum amplitude.
Mx Mx indicates the power setting is at the maximum amplitude. FC-200 Menu.doc 3/22/2011
Press “Back” key to exit menu.
Main Menu
Sub Menu
Normal Operation Display
Press ‘Enter’ to enter program menu
or get to the security menu.
Use the arrow UP and DOWN keys
to adjust the security number. Press
enter to test the security number.
Control Setting Adjustments

RODIX SOLUTION
Good wiring practices for
avoiding electrical noise
problems.
Rodixcontrolshavebeen designedwitha
high degree of immunity to electrical
noise;however,dependingon the control
installation, electrical noise can cause
problems. These problems occur in less
than 1% of theproduct installations. Most
electrical noise problems can be avoided
by following some simple guidelines.
Good wiring practices need to be used to
prevent electrical noise from interfering
with your control’s operation. Another
name for electrical noise is Electro-
Magnetic Interference (EMI).
Symptoms of Electrical Noise
The symptoms of electrical noise would
appear as follows: a brief pauseor abrief
“bump” in the vibratory feeder’s output
that the control automatically recovers
from. In rare cases the control will either
stop operating or run continuously at full
power in 120 pulse mode until the power
switch is slowly cycled OFF and ON.
Sources of Electrical Noise
Electrical noise is generated by devices
like relay coils, solenoid valves,
contactors, servo motors, and variable
frequency inverter drives. The electrical
noise is then transferred to another
device by one of three ways. The noise
could be conducted through the power
wires,orcapacitivelycoupledfromwireto
adjacent wire, or itis transmitted fromthe
wires of a noise source.
Solutions for Electrical Noise
1. Useshielded wiresforallI/O(Input
/ Output) signals. The I/O signals may
include: 4-20mA input, Run input,Sensor
input, 0-5VDC input, Interlock input or
AUX output. The shield “drain” wire
should be tied to the chassis in the Rodix
control. The drain wire should be kept
shorter than 2”. Please see the enclosed
picture.
Example of a “drain” wire termination
2. Never run I/O signal wires in the
same conduit or raceway as AC power
lines such as wires to motors, solenoids,
heaters, welders and Rodix controls, etc.
3. I/O wires within an enclosure
should be routed as far away as possible
from relays, solenoids, transformers,
power wiring and other noisy equipment.
Keep the I/O signal wires separate from
the control’s input and output power
wiring. Secure the wires in place.
4. Whenever relays or solenoid
valves are used, install a Snubber on
them to reduce electrical noise. Use a
diode on a DC coil. Use a RC Snubber
on an AC coil.
5. In extremely high EMI
environments, Power Line Filters and
ferrite beads can be effective. Install
ferrite beads on I/O signal wires as close
as possible to the circuit board terminal
strip. Loop the wire through the bead
several times or use several beads on
each wire for additional protection.
RODIX, INC.
2316 23rd Avenue, Rockford, IL 61104
Toll Free [phone], FAX [phone]
E-mail custserv[email protected]
www.rodix.com
2000, 2010 RODIX INC. Solution 408 1/27/2010
RODIX INC.
FEEDER CUBE


RODIX SOLUTION
.408
Drain
Wire
RELAY
COILSNUBBER
VAC
104M06QC47
QUENCH-ARC
RECTIFIER
DIODE RELAY
COIL
1N4006
VDC
+
-