Precautions And Restrictions - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
13 Spindle Control
13.12 Guide Bushing Spindle Synchronization

13.12.4 Precautions and Restrictions

(1) In the G/B spindle synchronization function, both reference spindle and G/B spindle are required to be controlled by the
spindle drive unit.
(2) The lower setting value between the reference spindle and the G/B spindle is used as the limit rotation speed of the G/B
spindle synchronization mode signal.
(3) Both reference spindle and G/B spindle coast to a stop when the "G/B spindle synchronization valid" (GBON) signal is
OFF.
(4) If the "G/B spindle synchronization valid" (GBON) signal is turned OFF immediately after turning OFF the forward/reverse
run command, the reference spindle and the G/B spindle stop and then enter the coasting status.
(5) Parameters such as of C axis and orientation function follow the spindle synchronization function.
(6) Spindle gear changeover command for the reference spindle and the G/B spindle is disabled.
(7) To specify the gear ration for reference spindle and G/B spindle, specify them into "#13057 SP057 GRA1" and "#13061
SP061 GRB1".
(8) The operation error (M01 1137) occurs if the G/B spindle synchronization temporary cancel signal is turned ON/OFF
when the reference spindle or the G/B spindle is in any of the following modes.
 During rotation (when not stopped)
 During tap cycle synchronization mode
 During spindle synchronization mode/tool-spindle synchronization I (polygon machining) mode/tool-spindle synchroni-
zation II (hobbing) mode
 During spindle C axis control C axis mode
 During orientation/indexing
(9) The MCP alarm (Y05 3025) occurs at power ON if one of the reference spindle and the G/B spindle uses a spindle detec-
tor that cannot be connected to a spindle drive unit.
(10) If the parameter "#3074 GBsp" is changed in G/B spindle synchronization mode, the changed parameter is enabled when
the "G/B spindle synchronization valid" (GBON) signal is turned OFF and ON.
(11) If the reference spindle is commanded as a workpiece axis of tool spindle synchronization II, "M01 Internal interlock axis
exists 0005" occurs and servo OFF cannot be carried out for the workpiece axis even when servo OFF is attempted in
tool spindle synchronization II mode. Carry out servo OFF after canceling tool spindle synchronization II.
(12) The operation error (M01 1138) occurs if the reference spindle is commanded as a spindle of tool spindle synchronization
IC.
(13) If the reference spindle is commanded as a synchronous tapping spindle, set the same value in the reference spindle's
position loop gain (#13003 SP003) and the tapping axis's axis servo gain (#2017 tap_g).
549 IB-1501668-B