- The diode is rated for maximum reverse voltage of 5 to 10 times the load voltage.
- The forward current is more than the load current.
6
TRIAL RUN
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Power Indication
The “POWER” LED at the front of the ELC will be lit (in green) if the power is on.
Ŷ
Low Battery Voltage Indication
There is also a “BAT.LOW” LED at the front of the ELC. When the LED is on, it indicates that the battery voltage is
insufficient. Please change the battery (within 3 minutes) as soon as possible; otherwise the user programs and the
data in latched area may be lost.
Ŷ
Preparation
1. Prior to applying power, please verify that the power lines and the input/output wiring are correct. And
be advised not to supply AC110V or AC220V into the I/O terminals, or it might short-circuit the wiring
and would cause direct damage to the ELC.
2. After using the peripheral devices to write the program into the ELC and that the ERROR LED of the
ELC is not on, it means that the program in use is legitimate, and it is now waiting for the user to give
the RUN command.
3. Use ELC-HHP to execute the forced On/Off test of the output contact.
Ŷ
Operation & Test
If the “ERROR” LED of the ELC is not blinking, use RUN/STOP switch or the peripheral devices (ELC-HHP or
ELCSoft) to give the RUN command, and the RUN indicator will then be on. If the “RUN” LED is not on, it indicates
that there is no program inside the ELC.
ELC-HHP could be utilized to monitor the settings and the registered values of the timer (T), the counter (C) and the
data register (D) during operation, and moreover, to force the output contacts to conduct the On/Off action. If the
ERROR LED is on (but not blinking), it means that the setting of the user’s program has exceeded the preset
overtime limit. At this time, please turn RUN/STOP switch to STOP and get program time-out address from special
register D1008. (it is recommended to improve by WDT command)
Ŷ
ELC Input/Output Reaction Time
The total reaction time from the input signal to the output operation is calculated as follows:
Reaction Time = input delay time + program scan time + output delay time
Input delay time
Factory setting is 10ms. Please refer to special registers D1020~1021.
Program scan time
Please refer to the usage of special register D1010.
Output delay time
Relay module: 10ms. Transistor module: 20~30us.
Ŷ
Basic Commands and Application Commands of the ELC:
1. The basic commands and the application commands of the ELC of this series are totally applicable to the
ELC. Refer to the ELC Technique Application Manual for relevant basic commands and application
commands.
2.
The ELC-HHP handheld programming panel and the ELCSoft (Windows version) editing program of the
ladder diagram are both good for use with the ELC. Also, the ELC could connect with the
ELC-PC12NNDR/T,ELC-PC12NNAR through specific transmission wire to execute the program
transmission, the ELC control and the program monitoring.
7
TROUBLESHOOTING
Judge the errors by the indicators on the front panel. When errors occurred on ELC, please check:
Ɓ
“POWER” LED
There is a “POWER” LED at the front of the ELC. When the ELC is powered On, the green LED light will be on.
Ɓ
ELC “RUN” LED
Identify the status of the ELC. When the ELC is in operation, this light will be on, and users could thus use
ELC-HHP or the editing program of the ladder diagram to give commands to make the ELC “RUN” or “STOP”.
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“ERROR” LED
If incorrect programs are input to the ELC, the indicator will blink. Please check D1004(Error code) and
D1137(Error step number).
When the ERROR LED is on (not blinking), it indicates that the execution time of the program loop has
exceeded the time-out setting (set by D1000). Please turn the ELC RUN/STOP switch to STOP, and find out the
address of the time-out program by special data register D1008. ”WDT”. After completing modifying program,
user only need to reload program and this LED will be off at this moment. Once the LED still lights, please turn
off the power and check if there is interference or any conductive material in ELC.
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“BAT.LOW” LED
When the battery voltage is low, the “BAT.LOW” LED will be on, please change the battery within 3 minutes to
retain the ELC’s internal user programs and data).
Ɓ
“Input/Output” LED
The On/Off signals of the input point could be displayed through the “Input” LED. “Output” LED indicates if the
output signals are On or Off.
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