Справочник Пользователя для Mitsubishi Electronics QD75MH2

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MELSEC-Q
4   INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT 
 
CAUTION
 
 If the adhesion of solvent and oil to the cord part of SSCNET  cable may lower the optical 
characteristic and machine characteristic. If it is used such an environment, be sure to do the 
protection measures to the cord part. 
 When keeping the QD75MH or servo amplifier, be sure to put on a cap to connector part so that 
a dirt should not adhere to the end of SSCNET  connector. 
 SSCNET  connector to connect the SSCNET  cable is put a cap to protect light device inside 
connector from dust. For this reason, do not remove a cap until just before connecting 
SSCNET  cable. Then, when removing SSCNET  cable, make sure to put a cap. 
 Keep the cap and the tube for protecting light cord end of SSCNET  cable in a plastic bag with 
a zipper of SSCNET  cable to prevent them from becoming dirty. 
 When exchanging the QD75MH or servo amplifier, make sure to put cap on SSCNET  
connector. When asking repair of QD75MH or servo amplifier for some troubles, make also sure 
to put a cap on SSCNET  connector. When the connector is not put a cap, the light device may 
be damaged at the transit. In this case, exchange and repair of light device is required. 
 
 
[1]   Precautions for wiring 
(1)   Use separate cables for connecting to the QD75MH and for the power cable 
that create surge and inductance. 
 
(2)   The shielded cable for connecting QD75MH can be secured in duct or 
bundle fixing. 
If the shielded cable is not secured, unevenness or movement of the 
shielded cable or careless pulling on it could result in damage to the 
QD75MH or servo amplifier or shielded cable or defective cable connections 
could cause mis-operation of the unit. 
 
(3)   If a duct is being used and cables to connect to QD75MH are separated 
from the power line duct, use metal piping. 
Ground the pipes securely after metal piping. 
 
(4)   The cable is to use the twisted pair shielded cable (wire size 0.3 mm 
2
 ). The 
shielded must be grounded on the QD75MH side. 
 
(5)   Use separate shielded cables of the forced stop input signal (EMI, 
EMI.COM), limit signal (FLS, RLS, DOG, STOP, CHG, COM) and etc., and 
manual pulse generator signal (PULSER A+, PULSER A-, PULSER B+, 
PULSER B-, P5, SG) for connecting to the QD75MH.  
They can cause electrical interference, surges and inductance that can lead 
to mis-operation.