S3: Synchronous spindle
13.1 Brief description
Extended Functions
712 Function Manual, 03/2013, 6FC5397-1BP40-3BA1
References:
Function Manual, Basic Functions; Spindles (S1)
● The following applies to setpoint couplings (DV):
To ensure more accurate synchronization characteristics, the LS should be in position
control mode (language instruction
SPCON) before the coupling is activated.
● Before selecting the synchronous mode, the gear stage necessary for FS and LS must be
selected. In synchronous mode, gear stage changeover and therefore oscillation mode
are not possible for FS and LS. Upon request, an alarm message is generated.
Cross-channel coupling
The LS can be located in any channel.
● The LS can be exchanged between channels by means of "Axis exchange".
● When several following spindles are coupled to one leading spindle, the dynamic
response of the coupling is determined by the weakest response as a function of the
coupling factor. The acceleration rate and maximum speed are reduced for the leading
spindle to such a degree that none of the coupled following spindles can be overloaded.
● The following spindle is always located in the channel in which the coupling has been
activated using
COUPON or COUPONC.
13.1.4 Selecting synchronous mode for a part program
Activate coupling COUPON, COUPONC
Language command COUPON activates the coupling in the part program between the
programmed spindles with the last valid parameters and thus also activates synchronous
mode. This coupling may be a fixed configuration or user-defined. The leading spindle and/or
following spindle may be at standstill or in motion at the instant of activation.
Certain conditions must be fulfilled before synchronous operation can be activated (see
Section "Prerequisites for synchronous mode (Page 711)").
The
COUPONC command adopts the previous programmed direction of spindle rotation and
spindle speed for the following and leading spindle in the part program. It is not possible to
specify an angular offset.
COUPON activation variants
Two different methods can be selected to activate synchronous mode:
1. Fastest possible activation of coupling with any angular reference between leading and
following spindles.
COUPON(FS, LS)
2. Activation of coupling with a defined angular offset POS
FS
between leading and following
spindle. With this method, the angular offset must be programmed on selection.
COUPON(FS, LS, POS
FS
)
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