Siemens SINUMERIK ONE MCP 2400.4c Function Manual

Detailed Description
2.1 NC/PLC interface signals
Various NC/PLC Interface Signals and Functions (A2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
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Fig. 2-3 Trajectory for clamping and "follow-up"
Drives with analog setpoint interface
A drive with an analog setpoint interface is capable of traversing the machine axis with an
external setpoint. If "follow-up mode" is set for the machine axis, the actual position
continues to be acquired. Once follow-up mode has been cancelled, homing is not required.
The following procedure is recommended:
1. Activate follow-up mode:
DB31, ... DBX2.1 = 0 (servo enable)
DB31, ... DBX1.4 = 1 (follow-up mode) (in the same or previous OB1 cycle)
=> Axis/spindle is in follow-up mode
2. Deactivate external servo enable and external speed setpoint
=> Axis/spindle moves with external setpoint
=> NC continues to detect the actual position and corrects the setpoint position to the
actual position
3. Deactivate external servo enable and cancel external speed setpoint
=> Axis/spindle stops
4. Cancel follow-up mode
DB31, ... DBX2.1 = 1 (servo enable)
DB31, ... DBX1.4 = 0 (follow-up mode)
=> NC synchronizes to current actual position. The next traversing movement begins at
this position.
Note
"Follow-up mode" does not have to be canceled because it only has an effect in
combination with "servo enable".

Siemens SINUMERIK ONE MCP 2400.4c Specifications

General

Brand	Siemens
Model	SINUMERIK ONE MCP 2400.4c
Category	Control Systems
Language	English