1 . M P U U n i ts
MN05003006E For more informat ion visit :
w w w. e a t o n . c o m
1-81
Preparation
1. Before powering the ELCB, checked that the I/O wiring is correct. Damage the ELCB
could occur if 110V AC or 220V AC is connected to input terminals or if the output wiring is
short-circuited.
2. When the programming software downloads a program to the ELCB: If the ERROR
indicator does not flash, the program you are using is legal and ELCB is ready to RUN..
Operation & test
1. If the ERROR indicator does not flash, you can use RUN/STOP switch or the
programming software to place the controller into the RUN mode and the RUN indicator
should be continuously on at this time. If the RUN indicator flashes, this indicates the ELC
controller does not have a program in it.
2. When the ELC controller is in operation, use the programming software to monitor the
operation of the program.
Low voltage indication
If the “LOW.V” (LV) indicator on the front panel of an ELC extension module is on, this indicates
that the input voltage is insufficient. All outputs on the module are disabled when this indicator is
on.
Input/Output Throughput
How to calculate the response time from the input signal to output operation of the ELC:
Response time = input delay time + program scan time + output delay time
Input delay time
10ms (default); 0 ~ 60ms (adjustable). Refer to special registers
D1020 ~ D1021.
Program scan time Refer to special register D1010.
1.4.5.2 Troubleshooting
ELCB-PB
“POWER” indicator
The “POWER” LED indicator on the front of ELCM controllers and extension modules will be on
(green) when the controller is powered. If the controller is powered but the indicator is not on
check the power source.. Also, be sure that the 24vdc generated by the controller is not
overloaded.
“RUN” indicator
When ELC is running, the RUN indicator will be on.
“ERROR” indicator
1. If you download an illegal program into an ELCM controller or use instructions or devices
that exceed their range, this indicator will flash (approx. every 1 sec.). When this happens,
obtain the error code from D1004 and the address where the error occurred in register
Содержание ELCM Series
Страница 1: ......
Страница 107: ...ELC Operation Manual For more information visit www eaton com MN05003006E 2 20 MEMO...