Detailed Description
2.2 Reference/Synchronize
Spindles (S1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-27
Only a homed axis can approach a programmed position accurately on the machine.
Additional information about homing the rotary axis can be found in
References:
/FB1/ Description of Functions, Basic Machine; Homing (R1)
Installation position of the position measurement system
The position measurement systems can be installed as follows:
• Direct on the motor in combination with a Bero proximity switch on the spindle as a zero-
mark encoder
• On the motor via a measuring gearbox in combination with a Bero proximity switch on the
spindle as a zero-mark encoder
• Directly on the spindle
• On the spindle via a measuring gearbox in combination with a Bero proximity switch on
the spindle as a zero-mark encoder (only with ratios not equal to 1:1)
Where two position measurement systems are provided, they can be installed either in the
same location or separately.
Synchronization procedure
When the spindle is switched on, the spindle can be synchronized as follows:
• The spindle is started with a spindle speed (S value) and a spindle rotation (M3 or M4) and
synchronized with the next zero mark of the position measurement system or with the
next Bero signal.
• The spindle is to be positioned from standstill using SPOS, M19 or SPOSA. The spindle
synchronizes with the next zero mark of the position measurement system or with the
next Bero signal. It is then positioned to the programmed position.
• The spindle can be synchronized from the movement (after M3 or M4) using SPOS, M19 or
SPOSA.
The responses are as follows:
– With SPOS = Pos, SPOS = DC(Pos) and SPOS = AC(Pos), the direction of motion
is retained and the position is approached.
– With SPOS = ACN(Pos) or SPOS = ACP(Pos), the position is always approached
with negative or positive direction of motion. If necessary, the direction of motion is
inverted prior to positioning.
• If does not make any difference whether the procedure is initiated from the part program,
FC 18 or synchronized actions.
• Crossing the zero mark in JOG mode by means of direction keys in speed control mode.
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