Omron E4C-UDA Instruction Manual
Ultrasonic Sensor with Separated Digital Amplifier
Amplifier Unit
E4C-UDA__
Instruction Manual
Thank you for purchasing this Amplifier Unit.
When using this Amplifier Unit, be sure to observe the following:
• The Amplifier Unit must be operated by personnel knowledgeable in electrical engineering.
• To ensure correct use, please read this manual thoroughly to deepen your understanding of the product.
• Please keep this manual in a safe place so that it can be referred to whenever necessary.
Omron Corporation
© OMRON Corporation 2005 All Rights Reserved.
READ AND UNDERSTAND THIS DOCUMENT
Please read and understand this document before using the products. Please consult your OMRON
representative if you have any questions or comments.
1636705-7B
WARRANTY
OMRON’s exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall responsibility of OMRON for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON’S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
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SUITABILITY FOR USE
THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY ARE NOT
DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS, AND SHOULD NOT BE RELIED UPON
AS A SAFETY COMPONENT OR PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to
separate catalogs for OMRON's safety rated products.
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer’s application or use of the product.
At the customer’s request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this document.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED
FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Please observe the following precautions for safe use of the product:
1) Do not use the product in environments where it can be exposed to inflammable/explosive gas.
2) Do not use this product in locations where it will be sprayed by water, oil or chemical fumes, or in steamy locations.
3) Do not attempt to dismantle, repair, or modify the product.
4) The supply voltage and current must be within the rated ranges.
5) Do not wire the product incorrectly (e.g. mistake the polarity of the power supply, or mistake wiring terminals).
6) Correctly connect the load to both control and analog outputs.
7) Both ends of the load on control outputs and analog outputs should not be short-circuited.
8) Do not use the product with the case damaged.
9) Dispose of this product as industrial waste.
1) Electrical lines and power lines must be wired separately from this product. Wiring them together or placing them in the
same duct may cause induction, resulting in malfunction or damage.
2) Limit cable extensions to 10 m. Use extension cable of 0.3 mm
3) Sensing is possible 200 ms after the product is turned on.
When the load and product are powered by different power supplies, be sure to turn the product on before the load.
4) Be sure to use the product with its protective cover attached.
5) When a write error occurs (ERR/EEP flashes) due to power being cut off, or static electricity or other noise, initialize the
product settings by its setting keys.
6) After the product is turned on, it sometimes takes time for the displayed distance value to stabilize in some operating
environments.
7) An output pulse is sometimes generated when the product power is cut. For this reason, cut the power of the load or
load line before turning the product off.
8) Do not use paint thinner, benzene, acetone, or kerosene for cleaning.
9) Before connecting or disconnecting connectors to the Sensor Head, be sure to turn the product off.
Only the E4C Sensor Head can be used. Other Sensor Heads cannot be used. Use of a different model of Sensor
Head may damage the product.
10)The distance value displayed in the amplifier's display is different from the value measured using a tape measure or
other apparatuses. When the value must be adjusted for use, adjust the value using the scaling function.
Precautions for Safe Use
Precautions for Correct Use
2
in diameter or thicker.
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.
1. Part Names and Functions
(2) Main display (red display)
(3) Twin output model: Operation indicator (2CH side)
(1) Operation indicator
(1CH)
Analog output model: None
(4) Sub-display (green display)
UP
DOWN MODE
SET RUN
12
(7) Control keys
(5) SET/RUN switch
(6) Twin output type: Channel switch
Analog output type: Operating mode switch
NF
(1) This indicator lights when the output turns ON.
In the case of the twin output model, this indicator lights when the output of 1CH turns ON.
(2) This display shows the distance to the workpiece and function name.
(3) In the case of the twin output model, this indicator lights when the output of 2CH turns ON.
(4) This sub-display shows additional information and function settings for sensing.
(5) This switch selects the operating mode.
(6) In the case of the twin output model, this switch selects the channel to be displayed and set.
In the case of the analog output model, this switch selects whether to turn output ON when the workpiece is in the near
distance or the workpiece is in the far distance.
(7) These keys switch the display and set functions.
2. List of Functions
Function Name Overview
Operating mode setting This function sets the operating mode. P.7
Threshold setting This function sets the threshold values. P.8
Bank setting/call This function saves and reads settings. P.10
Scaling setting This function changes the display values for specific measurement values to the
desired values. (twin output model only)
Judgment output setting This function selects the output method. P.12
Analog output range setting This function sets the range and display ratio of the analog output with respect to the
display value.
(analog output model only)
Zero reset/offset This function sets the current distance to 0 (zero) or to any value. P.15, P.15
Display inversion This function inverts how the display for the distance to the workpiece is
incremented/decremented.
Keylock This function disables key operation. P.16
Initialization This function returns the amplifier settings to their factory settings. P.16
Page for Description
of Operation
P. 11
P. 1 3
P. 1 5
3. Installation & Connection
Connecting the Sensor Head
1. Open the protective cover.
2. Orient the Amplifier Unit so that the lock lever of the Sensor
Head connector is facing up, and push the Sensor Head into the
connector insertion slot as far as it can go.
To remove the Sensor Head, press down on the lock lever and draw
the Sensor Head out.
1
2
Lock lever
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Installing the Amplifier Unit
JInstallation procedure
Hook the Sensor Head connector end of the Amplifier Unit on the
DIN Track and press in at the bottom until the Amplifier Unit locks
into place.
Be sure to mount the Amplifier Unit by hooking the Sensor Head
connector end of the Amplifier Unit on the DIN Track.
Hooking the other end may impair the mounting strength of the DIN
Track attachment.
JRemoval procedure
Push the Amplifier Unit in direction 1 and pull out the Sensor Head
connector end in direction 2.
4. Basic Knowledge for Operation
Switching Modes
To switch the operating mode, use the SET/RUN Switch.
Switch to the desired mode before operating the Amplifier Unit.
Mode Details
SET Select this mode to set the sensing conditions or threshold value by teaching.
RUN Select this mode to perform actual sensing or to set the following:
Manual adjustment of the threshold value, power adjustment, zero reset, key lock
Key Operations
Use the Control Keys to change the display and set sensing conditions.
The currently selected mode determines the key functions.
DIN track
Hook on sensor head connector
1
2
DIN track
Key
UP key Increases the threshold value. The function changes depending on the settings.
DOWN key Decreases the threshold value. The function changes depending on the settings.
MODE key
The function changes depending on the "MODE key
setting".
• Executes a zero reset
• Teaching with and without a workpiece
RUN Mode SET Mode
Function
• Executes teaching.
• Changes the setting value in the forward direction.
• Executes teaching.
• Changes the setting value in the reverse direction.
Changes the display to the function to be set.
About key pressing time
Unless otherwise mentioned in text descriptions, press keys for about one second.
Example: Press the UP key.
This means that you hold down the key for about one second and then release the key.
Reading Displays
The data displayed on the main and sub-displays depends on the currently selected mode. When the power is first turned
ON after shipment, RUN mode data is displayed.
Mode Main Display (Red Display) Sub-Display (Green Display)
SET Displays distance values and function names in order when
the Control Keys are pressed.
RUN* Displays the current distance value. (default) Displays the current threshold value. (default)
Displays the threshold values and setting values of
functions currently displayed on the main display in order
when the Control Keys are pressed.
* Display details can be changed by the display switch function. Refer to "Function Transition Charts" in "5. Function
Overview."
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5. Function Overview
Function Transition Charts
SET mode
The following function can be set in SET mode.
The following explanation is for the SET mode on both the twin output model and analog output model.
Switch to the SET mode.
RUNSET
0. Operation mode
* In the case of an analog output, "0. Operation mode" is not provided.
Near distance ON
NON
Far distance ON
1. Number of samples
to average
2. Timer
FON
1 to 256
3. Display switch
4. MODE key setting
Not
Timer time
----
OFFD
ON-D
1SHT
Current distance Threshold value
PEAK BOTM
Current distance PEAK
Current distance Channel
2PNT
Timer disabled.
OFF-delay timer
ON-delay timer
One-shot timer
20 ms to 200 ms
Teaching with and without a
workpiece
1 ms increments1 to 20 ms
5 ms increments
100 ms increments200 ms to 1 s
1 s increments1 s to 5 s
Current distance
and threshold value
Distance between the
nearest workpiece on the
Near side and the farthest
workpiece within the Far side
Current distance
and distance at peak
Current distance
and channel No.
A
B
AUTO
PPT
0RST
OFST
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Automatic-teaching
Position teaching
Executes a zero reset
Offset
A
5. Bank selection
6. Bank registration
7. Display orientation
8.
Sensor model selection
9. Scaling
B
0 to 3
0 to 3
Normal display
D123
E21P
Reversed display
E4C-DS30
30
E4C-DS80
80
E4C-DS100
100
Scaling set
ON
Scaling not set
OFF
* In the case of the twin output model
10. Output method setting
* In the case of the analog output model
10. Output area setting
2OUT
AREA
2BIT
2PNT
RFCT
MFCS
Output on each channel
This is output only when there is a workpiece
between two threshold value distances.
2BIT output
Range of two preSET points is
output as 1 to 5 V.
Near-distance side rated distance to background setting range is output as 1 to 5 V.
Range of two points preset by
direct entry is output as 1 to 5 V.
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