Schmalz SXMPi, Руководство по эксплуатации

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Description of Functions
42 / 66 EN-US · 30.30.01.01721 · 01 · 09/19
Leakage L < permitted value -L-
Vacuum
Time
SP1
rP1
If the leakage L is less than the set value -L-,
• the vacuum continues dropping until the
reset point rP1 is reached.
• The ejector begins to suck again (normal
control mode)
Leakage L > permitted value -L-
If the leakage L is greater than the set value -
L-, the display will alternately show the pa-
rameter
-L-
and the vacuum level.
The permitted leakage value -L- can be set in the Extended Functions menu with the parameter [
-L-
].
Control Threshold Monitoring
If the switching point H1 is never reached during the suction cycle, the “H1 not reached” condition moni-
toring warning is triggered and the system status light switches to yellow.
This warning is available at the end of the current suction phase and remains active until the next suction
cycle.
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 and the status light switches to yellow.
Monitoring the Supply Voltages
The ejector is not a voltage meter! However, the measured values and the system responses
derived from them provide a helpful diagnostics tool for condition monitoring.
The ejector measures the level of the U
S
and U
A
supply voltages. The measured values can be read from
the parameter data.
If the voltages are outside the valid range, the following status messages change:
• Device status
• Condition monitoring parameter
• An IO-Link event is generated
In case of undervoltage, the valves are no longer activated and the ejector returns to its basic setting:
• The NO ejector switches to Suction mode.
• The NC ejector switches to Pneumatically OFF mode.
• The IMP ejector remains in its current mode ("Suction" or "Pneumatically OFF").
If the ejector is in manual mode, it exits manual mode.
A condition monitoring event is also generated If there is an overvoltage.
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. 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: