Schmalz SXMPi, Руководство по эксплуатации

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Description of Functions
EN-US · 30.30.01.01721 · 01 · 09/19 31 / 66
7.2.4 Restricted Mode
The supply voltage is monitored by the electronics system. If the supply voltage falls below approx. 19.2 V,
this is indicated by an error message. It cannot be guaranteed that the ejector will operate as intended
below this voltage threshold.
However, operation in "restricted mode" is still possible.
On ejector variants NO and NC, the "blow-off" and "suction" pilot valves are equipped with manual aux-
iliary actuation; on eject variant IMP, only the "blow-off" pilot valve is equipped with manual auxiliary ac-
tuation.
This can be used to actuate the valve manually without a power supply.
ü The compressed air supply is connected.
4 To activate the valve in question, trigger the
manual auxiliary actuation using an imple-
ment such as a ballpoint pen.
"Blow-off"
pilot valve
"Suction"
pilot valve
Manual auxiliary
actuation
The valves can be operated manually in "restricted mode" using the manual auxiliary actuation without a
power supply.
7.3 Monitoring the System Vacuum and Pressure and Defining Limit Values
The ejector has built-in sensors for vacuum measurement and compressed air measurement (-PC- variant
only).
The current vacuum and pressure levels are shown on the display and can be read out via IO-Link.
The limit values and hysteresis can be adjusted in the menu items [
X-1
], [
h-1
], [
X-2
], [
h-2
], [
XP1
]
and [
hp1
], or via IO-Link.
Limit values H-1 and h-1 are used for control purposes in the control function.
There is also a "part deposited" limit value, H3 [PDIN0], which cannot be adjusted in the main menu. This
value is fixed at 20 mbar. If the system reaches a vacuum of < 20 mbar (once H2 has been reached), the
ejector issues signal H3. This tells the controller that the part has been deposited successfully. The signal is
reset by issuing a new Suction ON command.
Overview of vacuum and pressure limit values:
ISDU [Hex] Limit value parameter Description
P-0: 0x0064 H1 Vacuum control value
P-0: 0x0065 h1 Vacuum hysteresis
P-0: 0x0066 H2 Activation value of “Parts control” signal output
P-0: 0x0067 h2 Hysteresis of “Parts control” signal output
— H3 Part deposited; 20 mbar
P-0: 0x0068 HP1 Pressure activation value
P-0: 0x0069 hP1 Hysteresis pressure