Chapter 6 Indications 6-1 To; Led Indications - Hitachi HIDIC EH-150 Applications Manual

Chapter 6
The EH-RMP can give indications to the user in two different ways. The first way is via the five indications LED at the
top of the module and the second way is via the special internal output of EH-150 CPU, where detailed information
about the Profibus DP network is available for the PLC programmer.
6.1

LED Indications

The LED Indications are placed at the top of this module.
6.1.1 Status LED (STATUS)
The status LED will give information about the state of the EH-RMP.
The LED will flash red or green different times depending on the status indicated.
The status LED will flash green if the error is recoverable (the error can be recovered without a restart of the module)
and red if the error is non-recoverable (the error can not be recovered without a restart of the module or the module needs
to be replaced).
6.1.1.1 Normal operation
When the EH-RMP is initialized and has entered the normal operation state, the status LED is constantly lit green.
This indication also indicates that there are no errors reported from the EH-RMP.
Color: Green
0 250 500
6.1.1.2 Initialization
During the initialization sequence, the status LED will flash green with 1Hz according to the pattern below.
Color: Green
0 250 500
6.1.1.3 EH-RMP locked
If the EH-RMP is locked for some reason, the status LED is lit constantly red.
Indications
750 1000 1250 1500 1750 2000
750 1000 1250 1500 1750 2000
(ms)
(ms)
6-1
Chapter 6 Indications