Main group
Sub-group
4
Firmware update
5
Device configuration
6
LibRTE
7
Warm start
8
Version management
11
Software
9
Device description
12
Maintenance
1
Operating time
1
Diagnostics
13
Various
2
Auto-tuning
1
CDSB
16
External device
2
IO-Link device
17
Security (data)
1
User login
0
No allocation
1
EnDat
2
Hiperface
3
Quadrature (incremental encoder)
4
Nikon A
18
Encoder
6
Sin/Cos
Tab. 12 Grouping of the diagnostic messages
11.4
Load voltage monitoring
The load voltage monitoring distinguishes between "Undervoltage/overvoltage PL" and "Shutdown
PL". The distinction between "Undervoltage PL" and "Shutdown PL" is helpful if a deliberate shut-
down, e.g. emergency stop, should not trigger an error message in the higher-level controller. A critical
undervoltage, e.g. due to a voltage drop in the line that is too high, is always reported as an error.
A "Shutdown PL" is detected by the module if the load supply PL falls below the permissible tolerance
range and then drops to a residual voltage of
.
5V within 250ms.
The behavior of the load supply monitoring can be set via the parameter "Diagnostic undervoltage
load supply".
The diagnostics are displayed as a combination of the LED displays [MD] and [PL] and a diagnostic
message is generated depending on the parameter setting.
Diagnostics
24
Festo — CPX-AP — 2019-06
