Diagnostics Via Led Display On The Basic Unit And On The Operator Panel - Siemens SIMOCODE pro System Manual

Commissioning and service
14.2.3

Diagnostics via LED display on the basic unit and on the operator panel

The basic units and the operating panel have three LEDs for displaying
specific device states:
LED
Device
Bus
Gen.
Fault
Table 14-4: Diagnostics via LED display
14-6
Status Display Description
Device Green Device is ready for
status operation
Green – Internal fault
flickering
Yellow Memory module or
addressing plug
recognized, Test/Reset
buttons control the
memory module or
addressing plug
Yellow – Memory module/
flashing addressing plug read in;
factory settings
configured (duration: 3s)
Yellow – Memory module
flickering programmed (duration:
3s)
Red Parameterization
incorrect (also Gen.
Fault on)
Basic unit defective
(also Gen. Fault on)
Red – Memory module,
flashing addressing plug,
expansion modules
defective (also Gen.
Fault on - flashing)
Off Supply voltage too low
Bus Off Bus not connected or
status bus fault
Green – Baud rate recognized/
flashing communication with
PC/programming device
Green Communication with
PLC/PCS
Fault Red Fault pending; reset has
status been saved
Red – Fault pending; reset has
flashing not been saved
Off No fault
Corrective measures for
faults
—
Send back the basic unit
—
—
—
Parameterize again and
switch the control
voltage off and on again
Replace basic unit!
Reprogram/replace the
memory module,
replace the expansion
modules
Check whether the
supply voltage is
connected/switched on
Connect the bus or
check bus parameters
—
—
Rectify fault, e.g.
overload
Rectify fault, e.g.
overload
—
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03