Selection/Deselection And Programming Of Gwps, System Variable - Siemens SINUMERIK 840D sl Function Manual

18.6.2

Selection/deselection and programming of GWPS, system variable

Part program commands
The GWPS is selected and deselected with the following part program commands:
Command
GWPSON
Grinding wheel peripheral speed ON
GWPSOF
Grinding wheel peripheral speed OFF
GWPSON(T number)
Grinding wheel peripheral speed ON (T no.)
GWPSOF(T number)
Grinding wheel peripheral speed OFF (T no.)
S[spindle number] = value
References:
/PG/ Programming Manual Fundamentals
Note
Parameter $TC_TPG1 assigns a spindle to the tool. Every following S value for this spindle
is interpreted as a grinding wheel peripheral speed when GWPS is active (see above).
If GWPS is to be selected with a new tool for a spindle for which the GWPS function is
already active, the active function must be deselected first with GWPSOF (otherwise an alarm
is given out).
GWPS can be active simultaneously for several spindles, each with a different grinding tool,
in the same channel.
Selection of GWPS with GWPSON does not automatically result in activation of tool length
compensation or of the geometry and speed monitoring functions. When GWPS is
deselected, the last speed to be calculated remains valid as the setpoint.
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
W4: Grinding-specific tool offset and monitoring functions - only 840D sl
18.6 Constant grinding wheel peripheral speed (GWPS)
Description
Selection of GWPS for the active tool in the
channel.
Deselection of GWPS for the active tool in the
channel.
Selection of GWPS for a non-active tool with
T number.
Deselection of GWPS for a non-active tool with
T number.
Programming of constant grinding wheel
peripheral speed.
Unit of value setting depends on basic system
(m/s or ft/s).
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