H
Anti-chattering function (F 3)
A large bore cylinder or ejector consumes a large volume of air in operation and may
experience a temporary drop in the supply pressure. This function prevents detection of
such temporary drops in the supply pressure as an error.
<Principle>
This function averages pressure values measured during the response time set by the user and then compares the average pressure value with
the pressure set point value to output the result on the switch.
If the above remedy cannot recover the operation, ask SMC for repair.
Momentary change
t (ms)
t (ms)
Time
→
Time
→
Time
→
<Averaging>
<Averaging>
ON
OFF
ON
OFF
H-1
Available response time settings
20 ms, 100 ms, 500 ms, 1000 ms, 2000 ms
I
Display unit switching function (F 0)
Display units can be switched with this function.
∗
The ZSE40A (vacuum pressure) and ZSE40AF (compound pressure) will have different setting and display
resolution when the unit is set to MPa.
Display unit
Minimum unit setting
0.1
0.1
1
kPa
0.001
0.001
0.001
MPa
∗
0.001
0.001
0.01
kgf/cm
2
0.001
0.001
0.01
bar
0.01
0.02
0.1
psi
0.1
0.1
inHg
1
1
mmHg
ZSE40A
(vacuum pressure)
ZSE40AF
(compound pressure)
ISE40A
(positive pressure)
G
Error indication function
Description
Error code
Error name
Overcurrent
error
Residual
pressure error
Applied
pressure error
System
error
Remedy
Load current of switch output (OUT1) exceeds 80 mA.
Turn the power off and remove the output factor for
the overcurrent. Then, turn the power on.
Reset applied pressure to a level within the set
pressure range.
The controller does not respond to the auto-shift
signal. Check the equipment and machinery for this
point.
Perform zero-clear operation again after restoring
the applied pressure to an atmospheric pressure
condition.
Load current of switch output (OUT2) exceeds 80 mA.
Supply pressure exceeds the maximum set pressure.
Supply pressure is below the minimum set pressure.
Internal data error
During zero-clear operation, pressure over
±
7% F.S. is applied.
(ZSE40AF (compound)
±
3.5% F.S.)
After 1 second, the mode will reset to measurement mode.
±
1%
F.S. of the zero-clear range varies between individual products.
Turn the power off and turn it on again. If the failure
cannot be solved, ask SMC for repair.
Auto-shift
error
The value measured at the time of auto-shift input is outside the
set pressure range.
∗
After displaying the error code for about 1 second, the switch
returns to the measuring mode.
The F
in ( ) shows the function code number. Refer to the Operation
Manual for the details of operation procedures and function codes.
Pressure
↑
Switch output
operation in
normal
conditions
Switch output
operation when
anti-chattering
function is on.
Set-value
P-1
15
Series
ZSE40A(F)/ISE40A
2-Color Display High Precision
Digital Pressure Switch
