SMC Networks PF2MC7 Series Manual page 27

PFG300
Function Details
 Output operation
The output operation can be selected from the following:
Output (hysteresis mode and window comparator mode) correspond-
ing to instantaneous flow or output (accumulated output and pulse
output) corresponding to accumulated flow
(Default setting: Hysteresis mode, Normal output)
 Simple setting mode
Only the set values for instantaneous flow and accumulated flow can
be changed. The output mode, output type, display color, and
accumulated pulse output cannot be changed.
 Display color
The display color can be selected for each
output status. The selection of the display
color provides visual identification of abnor-
mal values.
 Delay time setting
The time from when the instantaneous flow
reaches the set value to when the switch
output operates can be set. Setting the
delay time can prevent the switch output
from chattering.
(Default setting: 0 s)
 Digital filter setting
The time for the digital filter can be set to the
sensor input. Setting the digital filter can
reduce chattering of the switch output and
flickering of the analog output and the
display.
The response time indicates when the set
value is 90% in relation to the step input.
(Default setting: 0 s)
 FUNC output switching function
Analog output, external input, or copy function can be selected.
(Default setting: Analog output)
 Selectable analog output function
1 to 5 V or 0 to 10 V can be selected for the analog voltage output type.
(Default setting: 1 to 5 V)
 External input function
The accumulated flow, peak value, and bottom value can be reset remotely.
Accumulated value external reset: The accumulated flow value is reset via external in-
put signal.
In accumulated increment mode, the accumulated
value will reset to and increase from zero.
In accumulated decrement mode, the accumulated
value will reset to and decrease from the set value.
* When the accumulated value is stored to memory, every time the accumulated
value external reset is activated, the memory will be accessed. Take into
consideration that the max. number of times the memory can be accessed is 1.5
million times. The total number of external inputs and the accumulated value
memorizing time interval should not exceed 1.5 million times.
Peak/Bottom value reset: The peak value and bottom value are reset.
Series
Green for ON, Red for OFF
Red for ON, Green for OFF
Red all the time
Green all the time
0.00 s
0.05 to 0.1 s (Increments of 0.01 s)
0.1 to 1.0 s (Increments of 0.1 s)
1 to 10 s (Increments of 1 s)
20 s
30 s
40 s
50 s
60 s
0.00 s
0.05 to 0.1 s (Increments of 0.01 s)
0.1 to 1.0 s (Increments of 0.1 s)
1 to 10 s (Increments of 1 s)
20 s
30 s
 Forced output function
The output is forced ON/OFF when starting the system or during
maintenance. This enables confirmation of the wiring and prevents
system errors due to unexpected output.
For the analog output type: When ON, the output will be 5 V (or 10 V
when 0 to 10 V is selected) or 20 mA, and when OFF, 1 V (or 0 V
when 0 to 10 V is selected) or 4 mA.
* Also, the increase or decrease of the flow will not change the ON/OFF
status of the output while the forced output function is activated.
 Accumulated value hold
The accumulated value is not cleared even when the power supply is
turned OFF. The accumulated value is memorized every 2 or 5
minutes during measurement and continues from the last memorized
value when the power supply is turned ON again.
The max. writable limit of the memory device is 1.5 million times,
which should be taken into consideration.
 Peak/Bottom value display
The max. (min.) flow rate is detected and updated from when the
power supply is turned ON. In peak (bottom) value display mode, this
max. (min.) flow rate is displayed.
 Setting of a security code
The user can select whether a security code must be entered to re-
lease the key lock. At the time of shipment from the factory, it is set
such that a security code is not required.
 Key-lock function
Prevents operation errors such as accidentally changing setting values
 Reset to the default settings
The product can be returned to its factory default settings.
 Display with zero cut-off setting
When the flow is close to 0 L/min, the product will round the value
down and zero will be displayed. A flow value may be displayed even
when the flow rate is 0 L/min due to high pressure or depending on
the installation. The zero cut-off function will force the display to zero.
The range to display zero can be changed.
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