01/2007
11.5 Axes and spindles
11-377
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
Table 11-45 Synchronizing spindle: Interface signals
DB number Bit, byte Name Refer-
ence
Axis–specific Signals from PLC to axis/spindle
31, ... 16.4
Synchronize spindle 1
31, ... 16.5
Synchronize spindle 2
Axis–specific Signals from axis/spindle to PLC
31, ... 60.4
Referenced/synchronized 1
31, ... 60.5
Referenced/synchronized 2
11.5.27 Spindle monitoring
If the actual speed entered in machine data
S MD36060: STANDSTILL_VELO_TOL (maximum velocity/speed for ”axis/
spindle stopped”)
falls below the programmed velocity/speed, the interface signal
S IS DB31,... DBX61.4 (axis/spindle stationary)
is set. If
S MD35510: SPIND_STOPPED_AT_IPO_START (feed enable for ”Spindle
stopped”) is set,
the path feed is enabled.
If the spindle reaches the tolerance range specified in machine data
S MD35150: SPIND_DES_VELO_TOL (spindle speed tolerance)
interface signal
S IS DB31,... DBX83.5 (spindle in setpoint range)
is set. If
S MD35510: SPIND_STOPPED_AT_IPO_START (feed enable for ”Spindle
stopped”) is set,
the path feed is enabled.
The maximum spindle speed is entered in machine data
S MD35100: SPIND_VELO_LIMIT (max. spindle speed)
The NCK limits the spindle speed to this value.
Error response
If the speed is nevertheless exceeded by the speed tolerance (drive error), the
following signal is output:
S IS DB31,... DBX83.0 (speed limit exceeded) = 1
S Alarm ”22150 Maximum number of chucks exceeded”
Interface signals
Axis/spindle at a
standstill
Spindle in
set range
Max. spindle
speed
11 NCK Commissionin
with HMI Advanced