Troubleshooting and fault elimination – Lenze EMZ9374IB User Manual
Page 70

Troubleshooting and fault elimination
Fault messages
l
70
EDBMZ9374X DE/EN/FR 4.2
Behaviour of the terminal extensions in the event of cycle process data transfer
Bus device
LED "ERROR module"
LED
Level of the
digital
outputs
Fault
Important
Flash
pattern
"Operati
on"
Mode"
9374 master
«
Ċ – –
l
l
LOW
l
Only if C0030 > 0 ms
(system bus
monitoring time) the
digital outputs
change to a LOW
level in a defined
way.
l
No reset necessary
after the error has
been eliminated.
«
– – –
l
l
Ċ
l
Operation
undisturbed
l
LED "ERROR module"
indicates error of
9374 slave1, 2 or 3.
l
No reset necessary
after the error has
been eliminated.
¢
l
l
LOW
After fault elimination,
the terminal extension
is reset by switching off
and on the power
supply.
9374 slave1
9374 slave2
9374 slave3
¢
l
l
LOW
l
Only if C0030 > 0 ms
(system bus
monitoring time) the
digital outputs
change to a LOW
level in a defined
way.
l
No reset necessary
after the error has
been eliminated.
«
Ċ – –
l
l
LOW
9374 slave1
«
Ċ – –
l
l
LOW
9374 slave2
«
Ċ – –
l
l
LOW
9374 slave3
«
Ċ – –
l
l
LOW
9374 slave1
9374 slave2
9374 slave3
«
Ċ – Ċ –
¢
l
LOW
After fault elimination,
the terminal extensions
are reset by switching
off and on the power
supply.
l LED on
¢ LED off
« LED flashing