Azbil MC9 Series User Manual

15
(Blinking of LED2 changes to continuous lightening).
・If above abnormality occurs, firstly make START switch OFF. Then remove abnormal causes
(oil amount shortage). After solving abnormal cause, make START switch ON. (Abnormality
signal kept itself will be cancelled by making START switch OFF).
(2) Operation and Alarming of the MC9 units without Oil Drip Monitor, Oil Feed Monitor
(with control circuit)
・By switching the START-switch ON, after DC24V electric power source is supplied to the MC9
unit, preliminary pump action is performed 5times by rate of 1shot/sec. After this action, pump
continues to send oil to the venturi-nozzle with oil shot rate by setting of the DIP Switch.
・LED1 (Green) lamp on the circuit board lightens when the valve (PV) actuating pump is
activated.
NOTE: Filling the tube of oil passage tube between reservoir and oil drip tube through pump
with oil will solve the cause of abnormality in the preceding clause 4 (p.9).
・When oil amount in the reservoir fell to the level of oil replenishment, level-switch (LS) is
switched and LED2 (red) on the control circuit board blinks to prompt oil replenishment. At the
same time, electric contact point comes to OPEN between terminal 4 and 6 for alarming of oil
shortage.
・Prompting oil replenishment (blinking of LED2) will be continued for 15 minutes. Refill oil during
this time. If oil is not refilled, alarming signal by abnormality will be issued and will hold itself.
(Blinking of LED2 changes to continuous lightening).
・If above abnormality occurs, firstly make START switch OFF. Then remove abnormal causes
(oil amount shortage). After solving abnormal cause, make START switch ON. (Abnormality
signal kept itself will be cancelled by making START switch OFF).
(3) Alarming of Abnormality ･･･ and cancelling of alarming signal
When any of following causes occurs, alarming signals are issued by related equipment.
① In case of oil shortage: Level Switch (LS) switches.
② In case of abnormality of operating pressure: Pressure Switch (PS) for operating pressure
switches.
③ In case of abnormality manifold pressure: Pressure Switch (MPS) for manifold pressure
switches.
④ In case of the MC9 unit with Drip Monitor, or Oil Feed Monitor, incomplete supply of oil to
the venturi-nozzle is detected by the above monitor: Oil Drip Monitor, Oil Feed Monitor
issues alarming output signal.
⑤ Incidentally, alarming signals will be issued at the time the abnormal condition related
above
①~③ is continued over 1sec.
Since the abnormal signals are kept itself until the START-switch switches OFF, switching
OFF the START-switch is necessary in order to cancel the self-kept abnormal signals.
However, surely remove abnormality cause before making the START-switch ON.
7-7. Dripping Oil Quantities, and Oil Consumption
・It is necessary to adjust the best oil supply to each machine and equipment.
Especially for high speed bearing lubrication, the oil supply may be reduced and the manifold
pressure may be adjusted higher. Consult to Azbil TA if there is any unclear.
(1) Oil drop quantity can be adjusted by operative frequency of oil shot pump.
(2) Confirmation of output oil amount.
Approx. 10% of the oil drop in the sight-dome becomes Micron-Fog that is transferred to the
manifold piping. The oil consumption, which is shown on oil level display of oil reservoir, is
thought very little even after a whole day operation. Therefore oil consumption could be
calculated by the oil level change after use of one or several weeks.
{PREVIOUS LEVEL(cm)－LATEST LEVEL(cm)}
×114 = V(cm
3
/day)
ACTUAL OPERATION(days)

Azbil MC9 Series Specifications

General

Brand	Azbil
Model	MC9 Series
Category	Lubrication systems
Language	English