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Device Description
WAGO-I/O-SYSTEM 750
750-666/000-003 4FDI/2FDO 24V/10A PROFIsafe V2 iPar
Manual
Version 1.2.0, valid from HW/SW Version 01/01
Table 10: Display elements, communication / I/O module status
Figure 10: Display
elements,
communication / I/O
module status
LED
Designation
Status
Function
E
Group error
Off
No error
Red
Group error, illuminates when
• Overtemperature
• Overvoltage of the
field supply voltage
• Undervoltage of the
field supply voltage
• Error on clock output T1 or T2
• Internal error
• I/O error
• Incorrect F parameters
• Invalid iParameters
Red 2 Hz
flashing
Internal safety critical error
F
Internal bus
communication
Green
Internal bus communication active
Red
Internal bus communication error
G
PROFIsafe
status
Off
PROFIsafe data exchange not active
Green
PROFIsafe data exchange active
Green
0.5 Hz
flashing
Acknowledgement by operator
required
(Operator acknowledge, OA)
Red
No valid PROFIsafe F parameters
available
Red 1 Hz
flashing
Watchdog time (F_WD_Time)
exceeded
H
Parameter Setting
Off
Parameterization OK
Red
PROFIsafe I/O module selected by
WAGO-I/O-CHECK
Red 1 Hz
flashing
iParameter invalid
Red 2 Hz
flashing
Configuration running and not yet
completed
Green 2
Hz
flashing
PROFIsafe I/O module is it PROFIsafe
test mode
The group error LED (LED E) can illuminate alone or in conjunction with other
LEDs. Detailed information about the occurred group error is available in the
section "Diagnostics".
Behavior when group error LED (LED E) is flashing
A flashing group error LED (LED E) indicates that the PROFIsafe I/O module
has detected an internal safety critical error. The cause can be a defect in the
PROFIsafe I/O module or an environmental EMC error. In this case, switch off
the PROFIsafe I/O module completely and the switch it back on.
If the problem occurs several times, it points to a defect in the PROFIsafe I/O
module. In this case, return the PROFIsafe I/O module to WAGO Kontakttechnik
GmbH & Co. KG for fault analysis.
