4 - 14
MELSEC-Q
4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT
4.4 Confirming the installation and wiring4.4.1 Items to confirm when installation and wiring are completed
Check the following points when completed with the QD75 installation and wiring.
Is the module correctly wired? ... "Connection confirmation"
With "connection confirmation", the followi ng three points are confirmed using GX
Configurator-QP's connection confirmation funct ion. (GX Configurator-QP is
required for this "connection confirmation".)
Are the QD75 and servo amplifier correctly connected?
Are the servo amplifier and servomotor c orrectly connected?
Are the QD75 and external device (input/output signal) correct ly connected?
With this "connection confirmation", "wheth er the direction that the QD75
recognizes as forward run matches the address increment direct ion in the actual
positioning work", and "whether the QD75 recognizes the exter nal input/output
signals such as the near-point dog signal and st op signal" can be checked.
Refer to GX Configurator-QP Operating Manual f or details on "Connection
confirmation".
Note that GX Developer may also be used to "confirm the conn e c ti on betw e en
the QD75 and external device (I/O signals).
For details, refer to Section 13.5 "External I/O signal monit o r fun c ti on " an d GX
Developer Operating Manual (SW6D5C-GPPW- E or later).
Important
If the QD75 is faulty, or when the required signals such as the near -p oin t do g sign al and stop sig nal a re
not recognized, unexpected accidents such as "not decelerating at the near-point dog durin g machine
OPR and colliding with the stopper", or "not bein g able to stop with the stop signal" may occur.
The "connection confirmation" must be carri ed out not only when structuring the position ing system, but
also when the system has been changed with m odule replacement or rewiring, etc.