E 2 Prom Initialization Function - Mitsubishi A1SJ71PB92D User Manual

4. FUNCTIONS
2
4.6 E PROM initialization function
This function clears the parameters stored in the E2PROM of the AJ71PB92D/A1SJ71PB92D. When
the LED of the AJ71PB92D/A1SJ71PB92D indicates an error (FAULT LED: on, RSP ERR. LED: off),
initialize the parameters with this function.
Re-set the AJ71PB92D/A1SJ71PB92D parameters after executing this function.
The operation for this function is as described below.
Some E
Start the E
(1) Power off the CPU module.
(2) Using the mode setting switch, perform the following operations in Steps 1) to 7) to
initialize the E
1) Set the mode setting switch to "9" and power on the CPU module.
2) The FAULT LED turns on for four seconds and then turns off.
3) While the FAULT LED is off (within four seconds), set the mode setting switch to "F".
4) The FAULT LED turns on for four seconds and then turns off.
5) While the FAULT LED is off (within four seconds), set the mode setting switch to "A".
6) The B0 LED to B6 LED turn on, indicating that E
7) When the B0 LED to B6 LED turn off, E
(3) Set the mode setting switch to "1" and switch the power on again or reset the CPU
module.
(4) When the PRM SET LED turns on, E
(The AJ71PB92D/A1SJ71PB92D has returned to the initial status.)
If the PRM SET LED does not turn on, please consult your sales representative.
2
PROM initialization operations have time restrictions.
2
PROM initialization operations after confirming the following points.
2
PROM.
If the mode setting switch position is not changed within four seconds after the FAULT LED
2
has turned off, E PROM initialization is canceled.
If the mode setting switch position is not changed within four seconds after the FAULT LED
2
has turned off, E PROM initialization is canceled.
2
PROM initialization has started.
2
PROM initialization is completed.
2
PROM initialization is normally completed.
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MELSEC-A