Slide the switch of SWx marked ◎
toward ON side in the table in right
according to required oil shot quantities.
Switch of SWx marked × remains at
OFF position.
Caution: Oil shot rate should be set
within range of 1shot/ 3min to 20
shots/min.
Note 1: Factory set shot interval at
shipment is 20 shots/min for
MCD lubrication units equipped
with electrical control circuit.
Note 2: There is a error of 2% maximum
to a setting.
7-6. OPERATION of MC9 units with Electrical Control Circuit
Operations of MC9 unit have a little difference by the units with or without oil drip monitor, or oil
feed monitor. Incidentally, in case of the MC9 units equipped with D04 Filter-Regulator, or D14
Regulator, solenoid valve (SOL) for air supply is activated at the time when electric power is
supplied.
(1) Operation and Alarming of the MC9 units with 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, oil drip monitor, oil feed monitor executes initial sensitivity adjustment, and then
preliminary operation is performed to confirm oil dripping.
・Pump is actuated with rate of 60shots/min at preliminary operation and is actuated 100times at
a maximum. When 4 drippings of oil within 6 seconds is succeeded, preliminary operation is
finished even before reaching 100times preliminary pump action. After this action is
completed, the pump continues the action with oil shot rate by setting of DIP Switch.
・LED1 (Green) lamp on the circuit board lightens when the valve (PV) actuating pump is
activated.
NOTE: In case that the 4 drippings within 6 seconds are not confirmed, pump
continues action, and alarming signal by abnormality is issued. Remove
electric power supply at this time. And surely remove causes of abnormality
before making electricity again to the lubrication unit. Abnormal alarming
signals in the time of preliminary operation will be removed by making the
electric power OFF.
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.12).
・Remote sensitivity adjustment of the oil dripping monitor is automatically executed if no oil
dripping within 30seconds is detected. Besides, if there is not any oil dripping within
succeeding 30seconds, abnormal alarming signal will be issued. This monitors to be 1 drip or
more drips within 1minute.
・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.
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