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4 INSTALLATION AND WIRING
!
CAUTION
The MR-HENC/Q170ENC contains a glass disk and precision mechanism. Take care when handling
it. The encoder performance may deteriorate if it is dropped or subjected to shocks or vibration
exceeding the prescribed limits.
Do not connect the shaft of MR-HENC/Q170ENC directly to machine side rotary shaft. Always after
connecting the shaft of MR-HENC/Q170ENC to another bearing once, connect the shaft of MR-
HENC/Q170ENC through a flexible coupling.
Gear
Coupling
Bearing
MR-HENC/Q170ENC
Fig 4.2 Connecting the shaft of MR-HENC/Q170ENC to a machine side rotary shaft.
Never hit the end of the MR-HENC/Q170ENC coupling shaft with a hammer when connecting the
coupling to it.
The large loads applied to MR-HENC/Q170ENC will damage it.
The MR-HENC/Q170ENC uses optical parts. Install it in an atmosphere where there are extremely
few water drops and little oil and dust.
In any place where the MR-HENC/Q170ENC is exposed to water and/or oil, provide protection from
oil and water, e.g. install a cover. In addition, run the cable downward to prevent oil and/or water from
running on the cable into the MR-HENC/Q170ENC. When it is inevitable to install the MR-HENC/
Q170ENC vertically or
obliquely, trap for the cable.
Use the MR-HENC/Q170ENC within the specified temperature range (-5 to 55°C (23 to 131°F) ).