Siemens 810T manual Monitoring Functions, Diagnostics display on the CRT, Alarm Line

09.91 4 Monitoring Functions

4.1 General

4 Monitoring Functions

4.1General

The control contains permanently active monitoring functions which detect faults in the NC, the interface control and the machine at such an early stage that damage to the workpiece, tool or machine are practically eliminated. If a fault occurs, first of all machining is interrupted and the drives brought to a standstill, and then the reason for the fault is stored and displayed as an alarm. At the same time the PLC is informed that an NC alarm is present.

Monitoring functions exist for the following areas:

±Reading in

±Format

±Measuring circuit cables

±Encoders and drives

±Contour

±Spindle speed

±Enable signals

±Voltage

±Microprocessors

±Serial interfaces

±Transfer between NC and PLC

±Voltage level of the back-up battery

±System program memory

±User program memory

4.2Diagnostics display on the CRT

Messages from the monitoring system are displayed in the ºAlarm lineº of the CRT display. The ºAlarm lineº is the second display line from the top.

Upper CRT display
	Area for the	Area for the
	alarm no.	alarm text
ALARM LINE	and further
	identifiers

© Siemens AG 1990 All Rights Reserved 6ZB5 410-0EP02 4-1

SINUMERIK 810T, GA3 (BN)