Nidec RINDCODE NRX Series, Instruction Manual

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6
Since the forced cooling system has been adopted, be sure to connect the supplied oil cooler pump unit according to the following procedures.
■ Install the oil cooler pump unit at the same level as the oil gauge level of the speed drive.
■ Be sure to provide a separate power supply from the speed drive motor.
・ Since the speed drive has been shipped with the proper amount of special lubricating oil supplied inside, do not open the oil inlet (outlet)
valves of the speed drive until all hoses have been connected completely.
1.Be sure to connect the main unit and oil cooler pump unit using the supplied rubber hoses (two pieces).
2.Connect “IN” of the connection manifold in the unit to the connecting port on the side of the oil outlet in the speed drive, and “OUT” to
the connecting port on the side of the oil inlet in the speed drive.
For NRXMK-18K (including models equipped with the reducer)
Connection method 1
・ Connect the cooling water hose (needed to be prepared by your company)
to the cooling water flow conduit. Pass the cooling water with a flow rate
of 20 liter/min.
[Water-cooled system]
Horizontal type
Oil inlet
Pump unit
Oil filter
Manifold
OUT
(Oil outlet)
IN
(Oil inlet)
Cooling water
outlet
Cooling water
inlet
Water-cooled oil cooler
Oil inlet
Oil outlet
Oil outlet
Vertical type
Rubber hose Rubber hose
[Air-cooled system]
Horizontal type
Oil filter
Air-cooled oil cooler
OUT
(Oil outlet)
Pump unit
IN
(Oil inlet)
Oil inlet
Oil inlet
Oil outlet
Oil outlet
Vertical type
1-3 Connection with the oil cooler pump unit
2
2-1 Precautions before starting operation
1. Since, unless otherwise requested, the speed drive is filled with the proper amount of lubricating oil before shipping,
additional lubrication is not required
*
(Before use, check that lubricating oil has been supplied at the specified level of the oil gauge just in case).
* Note that models with the rod-shaped oil gauge have not been filled with lubricating oil.
■ Before use, be sure to remove the (red) pressure-release rubber plug attached to the breather cap at the oil filling port. Also, for models
equipped with the reducer (G, W, N types), be sure to remove the (red) pressure-release rubber plug attached to the oil port cap of the reducer.
2.Check that electrical wiring has been performed properly.
3.Check that connection to the mated machine has been performed properly (fitting conditions, centering, etc.).
4. At initial operation, confirm the rotating direction of the output shaft, and gradually apply the load.
If you operate the speed drive without removing the (red)
rubber plug from the cap, pressure escape routes will be
blocked, which could result in oil leakage.
Operation
Breather cap
Red pressure-release
rubber plug
Pressure-release plug
Red rubber plug