Simple Balance Current Adjustment - SMC Networks IP8001 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 Balance Current
[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
1919
- Be sure to normally tighten the
screw to the auto side (A) when
the positioner is 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
switching is available by approx.
1/8 turn. Keep the rotation within
1/4 to 1/8 turn.
Procedure
Fig. 8
No.IP8S-OM00013
A
valve Mode