2
2-6
User manual IC220SDL953 - September 2011
GFK-2731
2.7
Local diagnostic and status indicators
Figure 2-3
Local diagnostic and status indicators of the IC220SDL953 module
1 2
LP
SD
O8
0
1 2
1
1 2
2
1 2
3
D
FS
UM
79690003
D
LPSDO8
1
2
1
2
1
2
1
2
FS
UM
0
1
2
3
9
8
7
6
5
4
3
2
1
0
P
P
Table 2-1
Local diagnostic and status indicators
D
Green LED
Diagnostics
OFF:
Communications power is not present
Flashing at 0.5 Hz: Communications power present, local bus not active
Flashing at 4 Hz:
Communications power present, error at the interface between previous and flashing
terminal (the terminals after the flashing terminal cannot be addressed).
(E.g., loose contact at the bus interface, terminal before the flashing terminal has
failed, another terminal was snapped on during operation (not permitted))
ON:
Communications power present, local bus active
FS
Red LED
Failure state
Flashing at 1 Hz:
Device not parameterized or parameterization was not accepted
ON:
Hardware fault
The output drivers are reset, there is no communication to the satellites
Or:
Impermissible switch position
The module will respond to certain impermissible switch positions by entering the
failure state immediately after power up.
Observe the module startup time of approximately 16 s. During this time the D LED flashes at
4 Hz and the bus cannot be started up.
Do not start to download the configuration and parameter data record until the firmware has
started up (approx. 16 s; bit SA = 1 in Dev-Reg-LPSDO; see Appendix A 5.2 on page A-17).
