Monitoring Functions; Position Monitoring; Nominal Speed Value Monitoring - HEIDENHAIN iTNC 530 Technical Manual

6.11 Monitoring Functions

February 2002
The NC monitors the axis position and the dynamic response of the machine.
If the fixed values are exceeded, it displays an error message and stops the
machine.
With W1042 you can switch off the following types of monitoring for individual
axes:
n

Position monitoring

n
Standstill monitoring
n
Movement monitoring
n

Nominal speed value monitoring

W1042 Deactivation of monitoring functions
Bits 0 to 8 correspond to axes 1 to 9
0: Monitoring functions active
1: Monitoring functions inactive
Warning
Safe machine operation is not possible if the monitoring functions are
switched off. Uncontrolled axis movements are not detected.
If the reaction time of the PLC for switching off the monitoring functions is not
sufficient, you must use a high-speed PLC input. High-speed PLC inputs are
interrogated within the position control loop cycle:
7
In MP4130.0, enter the number of the PLC input that is to be defined as
high-speed PLC input.
Note
The inputs of the PL 4xxB cannot be used as high-speed PLC inputs.
7 Define in MP4131.0 the activation criterion for the PLC input specified in
MP4130.0.
7 Enable MP4130.0 with W522 bit 0. As soon as the input is set, the
monitoring functions are switched off, the axes stopped, and the drive is
switched off. If the following error is greater than MP1030.x (positioning
window), the actual value is saved as nominal value. The monitoring
functions become active again if the high-speed PLC input is reset or
MP4130.0 has been disabled with W522 bit 0.
Monitoring Functions
Set Reset
PLC PLC
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