KEYENCE AP-30 Series - Manual (Page 2)

PIPING/MOUNTING
Hexagonal socket bolt
CAUTION
Hold this part with a
wrench (14 mm).
CAUTION
• Special mounting brackets are
included with the AP-30 series.
Use the type of mounting bracket
appropriate for the location
where the sensor is mounted. To
mount the sensor, remove the
hexagonal socket bolts and then
retighten them through the
mounting bracket.
The maximum tightening torque for the hexagonal socket bolt is
0.3 Nm (Approx. 3 kgf•cm). To avoid breakage, do not exceed the
specified value.
SAFETY PRECAUTIONS
Be sure to follow the instructions below to avoid malfunctions.
■ Connection
• When using a commercially available switching regulator, be sure
to ground the frame ground terminals.
• Isolate the sensor’s wiring from power lines or high-voltage lines;
otherwise, the sensor may malfunction due to noise interference.
■ Other
• Do not use the AP-30 series for the detection of corrosive gases
or liquid.
• Do not insert any objects, such as wires, from the pressure port.
The pressure-sensing element may break, resulting in malfunc-
tions.
• Do not press the front panel keys with a pointed object.
• The AP-30 series does not have an explosion-proof structure.
Do not use it for the detection of flammable gases.
• You can select from three
pressure port positions by
selecting or replacing the
pressure ports. Select the
optimal position based on
your location.
The maximum tightening torque for the hexagonal socket bolt is
0.3 Nm (Approx. 3 kgf•cm). To avoid breakage, do not exceed the
specified value.
• An Rc (PT) 1/8 internal thread is provided on the pressure port of
the AP-30 series. Commercially available air-pressure pipe joints or
nipples can be used.
• When connecting a joint or a plug,
use a wrench (14 mm) to hold the
metallic part as shown in the figure to
avoid a large force being applied to
the sensor housing (resin part).
• Be sure to block an unused pressure port with the hexagonal-socket
port stopper provided.
The maximum tightening torque for the hexagonal-socket port
stopper is 10 Nm (Approx. 100 kgf•cm). To avoid breakage, do not
exceed the specified value.
• To prevent air leaks, wrap the male screw with sealing tape.
• To mount the AP-30 series to a panel using the panel mounting
holder set (OP-31357), use a panel with 1 to 3.5 mm thickness.
Hexagonal
socket bolts
CAUTION
CAUTION
OPERATION MODE SELECTION
■ Auto-tuning mode (F-1)
Using the AUTO key, detect the upper limit value (A) and the lower
limit value (b). The detection level (C) is automatically set at the
midpoint between the two values. (You can finely adjust the preset
value C within the range between A and b.)
Control output 1: The sensor turns on when the pressure exceeds the
preset value C.
Control output 2: The sensor turns on when the pressure goes outside
the stability levels.
* The stability levels are
automatically set as
shown in the following
calculations.
■ Hysteresis mode (F-2)
Set desired detection level (H) and hysteresis (h) for the detection.
Control output 1: The sensor turns on when the pressure exceeds the
preset value H. When the pressure falls by the preset
value h, the sensor turns off.
Control output 2: The sensor turns on when the pressure goes outside
the hysteresis width (H - h).
h: Hysteresis width of
OUT1
* When h is set to a
value close to 0, if
pressure fluctuates
around the detection
point, OUT1 will
chatter.
A
SH
Preset value C
SL
b
0
ON
OFF
ON
OFF
Control output 1
(OUT 1)
Control output 2
(OUT 2)
Pressure
SH =
(A + C)
2
SL =
(C + b)
2
Preset value H
H-h
0
ON
OFF
ON
OFF
Control output 2
(OUT 2)
h
Control output 1
(OUT 1)
Pressure
■ 2-independent mode (F-3)
Set two desired detection points (A and B).
Control output 1: The sensor turns on when the pressure exceeds the
preset value A.
Control output 2: The sensor turns on when the pressure exceeds the
preset value b.
■ Window mode (F-4)
Set desired upper limit value (H) and lower limit value (L).
Control output 1: The sensor turns off when the pressure goes outside
of the range between the upper limit value (H) and
lower limit value (L).
Control output 2: The sensor turns off when the pressure goes outside
of the stability levels.
* The stability levels are
automatically set as
shown in the following
calculations.
Note 1: The above description shows the operation of control outputs
1 and 2 when the output selector switch is set to N.O.
When the output selector switch is set to N.C., the operation of control
outputs 1 and 2 is inverted.
Note 2: Except for OUT1 in hysteresis mode, each control output
includes an internal hysteresis of 0.5% of F.S.
Preset value A
Preset value b
0
ON
OFF
ON
OFF
Control output 2
(OUT 2)
Control output 1
(OUT 1)
Pressure
Preset value H
SH
SL
Preset value L
0
ON
OFF
ON
OFF
Control output 1
(OUT 1)
Control output 2
(OUT 2)
Pressure
SH = H –
(H - L)
4
SL = L +
(H - L)
4
* The arrow shows the pressure port
positions that can be selected.