Function Details
ADisplay calibration function
0
Applied pressure
+
Displayed value at the time of shipment
Adjustable range of display calibration function
±5% R.D.
Displayed pressure value
Note) Rectified values are not saved in EEPROM.
BCopy function
EUnit display switching function
CAuto shift function
• This function is good only for those channels whose function selection is
turned “on” during the auto shift mode setting.
• Maintain the constant pressure for 10 ms or more after a drop in the auto
shift input.
• When the auto shift is input, “ooo” will be displayed for approximately 1
second, and the pressure value at that point will be saved as a rectified
value “C_5” (for CH1) or “C_3” (for CH2 and CH3). Based on the saved
rectified values, the set value “P_1” to “P_4” or “n_1” to “n_4” will likewise
be rectified.
• The time from the moment the auto shift is input, to the moment the
switch output actually operates is 15 ms or less.
• If the set value rectified by the auto shift input exceeds the regulating
pressure range, it will be rectified once more to within the values of the
regulating pressure range.
• When the auto shift function is turned “off”, the shift value will be zero.
• When all of the auto shift functions are turned “off”, “ooo” will not be
displayed even if the auto shift input is set to Lo (no-voltage input).
• Values “C_5” and “C_3”, rectified after the auto shift is input, will be lost
once the power is turned off.
• Values “C_5” and “C_3”, rectified after the auto shift function is used, will
be reset to zero (initial value) when the power is turned back on again.
DAuto identification function
This function automatically identifies the pressure range of the pressure
sensor that is connected to the multi-channel pressure sensor controller,
thus eliminating the need of having to reset the range again after
replacing the sensor. This function will be activated either when “Aon” is
set in the auto identification mode or when the power is turned back on in
that condition. However, this function only works in conjunction with
specific pressure sensors (SMC Series PSE53). When other pressure
sensors are used, this function will not work. When using other types of
pressure sensors, first set the auto identification mode to “AoF”, and then
proceed to setting the range. Turning the power back on while in the “Aon”
setting can cause a malfunction.
If there is a fluctuation in the supply pressure, erroneous operation may
occur (e.g., in the case of adsorption verification, the switch does not turn
ON even though the workpiece is being adsorbed, or does not turn OFF
even though the workpiece is no longer being adsorbed.)
The auto shift function rectifies pressure changes to ensure proper
ON/OFF switch response during such fluctuations.
<Principle>
At the point when the supply pressure fluctuates, the set pressure value is
rectified by setting the auto shift input (external input) to Lo (no-voltage
input), using the pressure measured at that point as a standard.
When auto shift is NOT used:
When the supply pressure fluctuates, a correct sensing is no longer possible.
When auto shift is used:
Time →
Time →
Time →
Time →
ON
OFF
Switch output
1 & 2
Hi
Lo
Auto shift
input
10 ms or more
15 ms
or less
Set value P1
P2
Set value P1
P2
Switch output
1 & 2
ON
OFF
Pressure ↑Supply pressure
normal
Does not turn ON Does not turn OFF
Supply pressure
normal
Set value
rectification
Set value
rectification
Pressure ↑
( )
Unit Display and Resolution
Applicable pressure sensor
Regulating pressure range
kPa
MPa
kgf/cm2
bar
psi
mmHg
inHg
–0.1 to 1 MPa
—
0.001
0.01
0.01
0.1
—
—
10 to –101 kPa
0.1
—
0.001
0.001
0.01
1
0.1
–10 to 101 kPa
0.1
—
0.001
0.001
0.01
—
—
–101 to 101 kPa
0.1
—
0.001
0.001
0.02
1
0.1
PSE530 PSE531 PSE532 PSE533
This function eliminates slight differences in the output values of all 4
channels and allows uniformity in the numbers displayed. Displayed
values of the pressure sensors can be adjusted to within ±5%.
Information that can be copied includes the following: qPressure set
values, wRange settings, eDisplay Units, rOutput modes, t
Response times.
• When CH1 is copied to CH2, CH3, and CH4, information of OUT1 in
CH1 will be copied.
• When CH2, CH3, or CH4 is copied to CH1, information of OUT1 in CH2,
CH3, or CH4 will be copied only to OUT1 in CH1.
Note) When the display calibration function is used, the regulating pressure
value may change ±1 digit.
Note) When the copy function is used, the regulating pressure value of
the copied channel may change ±1 digit.
Supply pressure
drop
Supply pressure
increase
Supply pressure
drop
Supply pressure
increase
Display units can be selected using either or .
Display units can be switched with this function.
Units that can be displayed vary depending on the range of the pressure
sensors connected to the controller.
Switch output
response time when
auto shift is input.