Troubleshooting - Rotem Platinum plus Installation Manual

D D o o c c . . N N a a m m e e : : P P + + I I n n s s t t a a l l l l a a t t i i o o

8. Troubleshooting

Display
1.2
1.3
Many error
messages
appear on the
display.
LEDs in the
One of the switch
switches and
cards holds the
alarm cards are
I2C BUS
not blinking
n n M M a a n n u u a a l l
Problem Possible Cause
I/O BUS (I2C) is
Platinum
stuck
General
problem
(Relays
are not
operating
in auto
mode and
many error
messages
appear)
Switch BUS (I2C)
is stuck
Faulty switch card
C C h h a a p p t t e e r r : : A A p p p p e e n n d d i i x x
Disconnect the bridge card between the CPU card
and the switch bus, and check if the LED on the
alarm card is blinking.
If the LED on the alarm card is not blinking, it
means that the problem is in one of the I/O cards.
In this case, the next step is to find which card is
the faulty one.
Disconnect the bridge card between the CPU card
and the switch bus, and check if the LED on the
alarm card is blinking.
If the LED on the alarm card is blinking, it means
that one of the switch cards (or the switch bus
itself) caused the I2C bus problem.
In this case, the next step is to find which switch
card is the faulty one.
1. Return the jumper between the CPU and the
switch bus.
2. To find which card holds the I2C BUS,
disconnect an entire line (2 switch cards) by
removing a bridge card.
3. See if the switch cards on the other lines start
blinking:
● If they start blinking it means that you
removed the faulty line (one of the cards is
faulty).
● If not, return the bridge back and
disconnect another line (repeat this
procedure until you find the faulty line (one
of the 2 switch cards is faulty).
4. Find out which of the 2 is faulty and replace it.
R R e e v v i i s s i i o o n n : : B B P P
Platinum Plus
Possible Solution
a a g g e e : : 4 4 2 2