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Description of Functions
The "Permissible leakage rate" can be set via IO-Link using the "permissible leakage rate" parameter e.g.
[0x006C].
Monitor Dynamic Pressure
If possible, a dynamic pressure measurement is taken at the start of every suction cycle (vacuum during
unobstructed suction). The result of this measurement is compared to the limit values set for H1 and H2.
If the dynamic pressure is greater than (H2 – h2) but less than H1, the corresponding condition monitoring
warning is triggered, the system status light switches to yellow and a warning (orange) is displayed via
the LED ring.
Autoset
The "CM Autoset" process data function allows the condition monitoring parameters for the maximum
permitted leakage "Permissible leakage rate" and the evacuation time (t-1) to be determined automati-
cally. The actual values from the last suction cycle are combined with an additional tolerance and stored
in the parameter data of profile P0.
Feedback about the completed "CM Autoset" function is displayed via input process data byte 0 "CM-Au-
toset acknowledged."
Condition Monitoring Events and Status Display
Any condition monitoring events that occur during the suction cycle cause the system status indicator
light to immediately switch from green to yellow. The event that caused this switch can be seen in the
"Condition monitoring" IO-Link parameter [0x0092].
The table below explains the coding of the condition monitoring warnings:
Bit
Event
0
The setting for H1 was smaller than H2
1
Set limit value t
2
Set limit value "Permissible leakage rate" for leakage ex-
ceeded
3
Vacuum limit value H1 was not reached
4
Dynamic pressure > (H2 - h2) and < H1
5
Bit 2 of process output data byte 3 was set by the robot.
This indicates a warning status for the robot.
6
"H2 not reached" process error is issued while SUCTION
= on.
7
Temperature over 50° C
Bits 1 to 3 and 6 describe events that can only occur once per suction cycle. They are reset at the start of
every suction cycle and remain stable until it has ended.
Bit number 4, which describes dynamic overpressure, is initially deleted when the device is switched on
and is updated when a dynamic pressure value is detected.
Bits 5 to 7 are regularly updated independently of the suction cycle and reflect the current values.
The values measured by the condition monitoring, namely the evacuation times t
value, are reset at the beginning of the suction and updated once they have been measured.
Bit 6: This warning is triggered by a leakage that cannot be compensated by a higher pump capacity. The
error is acknowledged by issuing the "suction" command again or pressing a button.
The error is acknowledged in any event (regardless of whether or not the leakage is eliminated). If the
leakage is not eliminated, the LEDs initially change to green (low brightness) and H2 is not reached.
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for evacuation time exceeded
1
Update
Constant
Cyclic
Cyclic
Cyclic
As soon as a corresponding dy-
namic pressure value has been de-
termined
Constant
Cyclic
Constant
and t
and the leakage
0
1
EN-US · 30.30.01.02196 · 01 · 11/20
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