Chapter 5 Indications 5-1 To; Led Indications; Rdy Led - Hitachi EH-RMP2 Applications Manual

Chapter 5 Indications
The EH-RMP2 can give indications to the user in two different ways. The first way is via the four indications
LED at the top of the module and the second way is via the special internal output of EH-CPU / EHV-CPU or use
function block for EHV+, where detailed information about the PROFIBUS-DP network is available for the PLC
programmer.
5.1

LED Indications

The LED indications are placed at the top of this module.

5.1.1 RDY LED

The RDY LED will give information about the hardware state of the EH-RMP2
The LED will flash red or green different times depending on the hardware status indicated.
(a) No error.
When the EH-RMP2 is initialized, the RDY LED is constantly lit in green.
Color: Green
0 250
(b) Hardware error.
When the EH-RMP2 broke, the RDY LED is constantly lit in red. If hardware error occurred, please change
EH-RMP2 to spare module.
Color: Red
0 250
(c) Power supply error.
As it is possible that EH-RMP2 is not being supplied power, please check power supply. If EH-EMP2 had
been supplied power, EH-RMP2 may be hardware error. Please change EH-RMP2 to spare module.
Color: -
PROFIBUS
RDY
STATUS
Figure 5.1-1 LED indications
500 750 1000 1250
500 750 1000 1250
EH-RMP2
RUN ERR
REM
1500 1750 2000
1500 1750 2000
5 – 1
(ms)
(ms)