18
SECTION 4: Function
4-3-6 Timing diagrams
4-3-7 Keyboard lock
With the keyboard lock function, the push buttons on the sensor can be locked to prevent inadvertent modifi-
cation of the settings.
The lock can be activated and deactivated on the sensor. When the keyboard lock is active, changes can only
be made after the Minus
and Plus
keys have been pressed simultaneously for 4 seconds. This tem-
porarily suppresses the keyboard locking. If no key is pressed for about 150 seconds, the keyboard lock is
automatically activated again.
4-3-8 ECO energy saving mode
In the ECO mode, the display switches off automatically approximately 3 minutes after the push buttons have
been pressed for the last time.
The display is activated again the next time the push buttons are pressed. Deactivation of the sensor display
reduces the sensor's current consumption by approximately 20 mA.
4-3-9 Reset
Reset returns the sensor to the factory default settings.
4-4 Inputs/Outputs
In total, the sensor can be operated with a maximum of three inputs/outputs. The functions of the inputs/out-
puts are user determined.
Connector pin 4 is always defined as output (OUT).
Connector pin 2 can be set as alarm output (ALARM), as test input (TEST).
Connector pin 5 can be set as test input (TEST) or OFF.
4-4-1 Input: Test input TEST
Connector pins 2 or 5 can be set as test input.
The emitter is deactivated if a signal in the operating voltage range is applied to this input. Depending on the
absence of a detection object the sensor alters it's output,because no light is emitted.
object
Mode on-1 (on-/off-1-delay)
object
only on-delay
only off-delay
on - and off-delay
Mode on-2 (minimum pulse width)
object
Mode on-3 (constant pulse width)
Timer functions off
detected
not detected
ON
OFF
detected
not detected
ON
OFF
ON
OFF
detected
not detected
ON
OFF
ON
OFF
+on-delay:Td1
+off-delay:Td2
+min/+genau:Td3
note:
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td3
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td1
Td2
Td2
Td2
Td2
Td2
Td2
Td2
Td2
Td2
Td2
Td2
Td2
Summary of Contents for E3NT-R
Page 1: ...OPERATION MANUAL Photoelectric Sensor Retro Reflective Sensor E3NT R Cat No E29E EN 01A...
Page 2: ......
Page 6: ...4 SECTION 1 Important Precautions...
Page 8: ...6 SECTION 2 Safety Notes...
Page 22: ...20 SECTION 4 Function...
Page 24: ...22 SECTION 5 Transport...
Page 30: ...28 SECTION 7 Electrical Connection...
Page 32: ...30 SECTION 8 Setting into Operation...
