NC Commissioning with HMI Advanced
11.5 Axes and spindles
Manual
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
431
NOTICE
The following is to be taken into account:
•
MD36620 $MA_SERVO_DISABLE_DELAY_TIME (switchoff delay servo enable)
must always be selected greater than
•
MD36610 $MA_AX_EMERGENCY_STOP_TIME (braking ramp time when errors
occur)
If this is not the case, the braking ramp cannot be kept.
References:
/FB/ Function Manual, Basic Functions; A3 Axis Monitoring, Protection Zones
11.5.19
Axis homing
Homing
When referencing a machine axis, the actual position value system of the machine axis is
synchronized with the machine geometry. Depending on the encoder type used, the machine
axis is referenced with or without traversing movements.
Reference point approach
For all machine axes which are not equipped with an encoder providing an absolute actual
position value, referencing is carried out by traversing the machine axis to a reference point;
this is called the reference point approach.
The reference point approach can be carried out either manually in JOG mode, submode
REF or using a part program. Reference point approach is started using traverse direction
keys PLUS or MINUS (depending on the parameterized reference point approach direction).
Incremental measuring systems
With incremental measuring systems, referencing is carried out using a reference point
approach divided into three phases:
1.
Traversing to the reference cam
2.
Synchronizing to the encoder zero mark
3.
Approach reference point
