DESCRIPTION OF FUNCTIONS
36 | EN
6.2.2.5
Error codes
The active error codes for the SCTMi and ejectors are comprised as follows:
ISDU
Dec
Parameter
Bit
Description
130[1 to 16] Ejector error code
0
Measurement range exceeded
130[17]
Bus module error code
0
Internal EEPROM error
1
Internal bus error
2
Undervoltage U
S
3
Overvoltage U
S
4
Undervoltage U
A
5
Overvoltage U
A
6
Supply pressure
For more information, see the chapter “Troubleshooting” (see
6.2.3 Condition monitoring (CM):
Any condition monitoring events that occur during the suction cycle cause the system status light to
immediately switch from green to yellow. The specific event that caused this switch can be seen in the
“Condition Monitoring” IO-Link parameter.
ISDU
Dec
Parameter
Bit
Description
146 [1…16] Condition monitoring
0
Valve protection function activated
Ejector 1 to 16
1
Set limit value t-1 for evacuation time exceeded
2
Set limit value for leakage exceeded
3
Threshold H1 was not reached
4
Dynamic pressure > (H2 - h2) and < H1
5
Manual mode activated
146 [17]
Condition monitoring
0
Sensor voltage outside the operating range
IO-Link bus module
1
Actuator voltage outside the operating range
2
Preset system pressure outside the operating range
Condition monitoring for the ejectors describes events that can only occur once per suction cycle.
They are reset at the start of every suction cycle and remain stable until after suctioning has finished.
Bit number 4, which describes excessive dynamic pressure, is initially deleted when the device is
switched on and is only updated when a dynamic pressure value is detected again.
The condition monitoring events for the IO-Link bus module are permanently updated independently of
the suction cycle and reflect the current values for the supply voltages and system pressure.
The measurement values for condition monitoring
– the evacuation times t0 and t1 as well as the
leakage area
– are reset at the start of every suction cycle and updated at the point in time when they
can be measured.
The CM data is displayed by EPC events in the process data.
