Schmalz SXMPi, Руководство по эксплуатации

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Description of Functions
32 / 66 EN-US · 30.30.01.01721 · 01 · 09/19
7.4 Calibrating the Sensors [0x0002]
Since the sensors installed in the ejector are subject to variants based on the manufacturing process, we
recommend calibrating the sensors after installation. In order to calibrate the ejector, the system's pneu-
matic circuits must be open to the atmosphere.
A zero offset is only possible in the range of ±3 percent of the end value of the measuring range.
When the permissible limit is exceeded by ±3 percent, error codes [
E03
] and [
E04
] will appear on the
display and the IO-Link.
The function for zero-point adjustment of the sensors is executed in the main menu using the parameter
CAL
or the IO-Link.
Calibrating from the Main Menu:
1. To set the zero point of the integrated sensors, press the button.
2. Press the or button until
CAL
appears in the display
3. Confirm using the button.
4. Press or to choose between [
No
], [
VAC
] (vacuum sensor calibration) and [
Pr5
] (pressure
sensor calibration; -PC- variant only).
5. If the menu is locked: Enter a valid PIN code.
6. Confirm using the button.
ð The selected sensor is calibrated.
7.5 Control Functions [P-0: 0x0044]
The ejector allows you to save compressed air or prevent a too powerful vacuum from being generated.
Vacuum generation is interrupted once the configured switching point H1 is reached. If leakage causes
the vacuum to fall below the hysteresis switching point (H1-h1), vacuum generation resumes.
The permissible leakage [P-0: 0x006C] is set in the Configuration menu using the [
-L-
] parameter, and
mbar as the unit of measurement. The leakage is measured after the control function has interrupted suc-
tion once switching point H1 is reached.
The following operating modes can be set for the controller function in the Configuration menu using
the
[
ctr
]
parameter or via IO-Link.
7.5.1 No Control (Continuous Suction)
The ejector produces continuous suction with maximum power. This setting is recommended for very por-
ous workpieces, which would otherwise cause the vacuum generator to switch on and off continuously
due to the high rate of leakage.
In this mode, the control function is set to [
off
].
This setting can only be adjusted when the control shutoff is deactivated [
dC5
] = [
NO
].