Simple Balance Current Adjustment - SMC Networks IP8101 Series Operation Manual

3. Simple balance
current adjustment
Auto/manual
switch screw
(Built-in fixed orifice)
Stopper screw
(Do not move)
Looseness
prevention
marking
Sensitivity holding screw
(Do not move)
Fig. 7
Adjust the torque motor balance current simply.
< Adjustment >
Devicd set up → Detailed set up → Set up → Calibration →
Simple Bal Cur
[Menu Tree No.：1-3-5-5-4]
No.
"Now positioner is forcibly set to 50% current into the torque
motor. Do you adjust the screw of torque motor already?" is
displayed. Check OUT1 port pressure gauge. When the
1
pressure is 0MPa or more, turn the balance adjustment
screw counterclockwise until displayed pressure beomces
＊
7
0MPa .
Turn the balance adjustment screw gradually clockwise
referring OUT1 port pressure gauge. Stop the balance
2 adjustment screw rotation when exhaust noise is changed,
OUT1 pressure becomes rising, but not reach supply
pressure.
After adjustment, press "OK" to completed easy balance
3
current adjustment mode.
7: For the balance adjusting screw position, refer to Fig. 8. Adjustments
must be made with a flat blade driver. Counterclockwise rotation
decreases pressure and clockwise rotation increases pressure.
Balance adjusting
screw
20
- Be sure to normally tighten the
screw to the auto side (A)
when the
operated with an input current.
- Supply pressure and the OUT1
output are connected by rotating
the Auto/Manual changeover
screw towards M.
Manual stroke adjustment of the
diaphragm valve and single
acting actuator can be adjusted
by using the supply pressure
setting reducing valve Mode
switching is available by approx.
1/8 turn. Keep the rotation within
1/4 to 1/8 turn.
Procedure
Fig. 8
B
positioner is
A
No.IP8S-OM00004