Description of Functions
EN
· 30.30.01.02851 · 01 · 03/22
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Condition Monitoring Events and Status Display [0x0092]
Any condition monitoring events that occur during the suction cycle cause the system status indicator light to
immediately switch from green to yellow/orange. The event that caused this switch can be seen in the “Condition
monitoring” IO-Link parameter.
The table below explains the coding of the condition monitoring warnings:
Bit
Event
Update
0
Valve protection function activated
Cyclic
1
Set limit value t-1 for evacuation time exceeded
Cyclic
2
Set leakage limit value -L- exceeded
Cyclic
3
Limit value SP1 was not reached
Cyclic
4
Dynamic pressure > (SP2-rP2) and < SP1
As soon as a corresponding dynamic
pressure value has been determined
5
Supply voltage US outside the operating range
Constant
8
Input pressure outside operating range
Constant
Bits 0 to 3 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 and 8 are regularly updated independently of the suction cycle, and reflect the current values for the supply
voltage and system pressure.
The values measured by the condition monitoring system, namely the evacuation times t0 and t1 and the leakage
value L, are reset at the beginning of every suction process and updated once they have been measured.
7.25.1
Energy Monitoring (EM) [0x009B, 0x009C, 0x009D]
In order to optimize the energy efficiency of vacuum gripping systems, the area gripper FXP-i provides a function for
measuring and displaying energy and air consumption.
When measuring air consumption as a percentage, the area gripper calculates the air consumption from the last
suction cycle as a percentage. This value corresponds to the ratio for the full duration of the suction cycle and the
active suction and blow-off times.
An externally recorded pressure value can be supplied using the IO-Link process data. If this value is available,
absolute air consumption measurement can be performed in addition to the percentage-based air consumption
measurement. The actual air consumption of a suction cycle is calculated taking the system pressure and nozzle size
into account, and specified in standard liters [NL]. The measured value is reset at the beginning of the suction cycle
and constantly updated during the running cycle. As such, no further changes can occur once blow-off is complete.
The electrical energy consumed by the device and by the valve coils during a suction cycle is measured and given in
watt-seconds (Ws).
For determining the electrical energy consumption, the neutral phase of the suction cycle must also be considered.
Therefore the measured values can be updated only when the next suction cycle begins. During the entire cycle, they
represent the results from the previous cycle.
The area gripper is not a calibrated measuring device. However, the values may be used as a reference and
for comparison measurements.
The area gripper is not a calibrated measuring device. However, the values may be used as a reference and
for comparison measurements.
For the area gripper FMP-i, only the electrical consumption of the valves is specified.
