Siemens SINUMERIK 840D sl Function Manual page 117

05.08
Note
A test stop can be simultaneously made for all axes of a drive unit.
Instant in time of the test stop
The shutdown paths must be tested (forced checking procedure) at a suitable in-
stant in time. This is generally carried out after the machine has been powered–up
and afterwards in the setting–up mode once within a maximum of 8 hours. We rec-
ommend that the test is carried out before opening protective devices/guards or
when the hazardous area is entered (e.g. when selecting the setting–up mode) if
the shutdown paths were not tested in the last 8 hours.
Note
The machine manufacturer should define the "test shutdown paths" time in an
appropriate "test block".
Note
If the brake control is enabled, then when the test stop is initiated, the brake is
also controlled.
Prerequisites for the test stop
S At the start, the pulses must still be enabled; further, it is not permissible that
SH is selected at the start.
S For vertical (suspended) axes, the manufacturer must ensure that these are
locked (to stop them falling).
Note
The test stop can be carried out independently of the status of the standard pulse
cancellation.
Message
The "test stop running" message is displayed during the "test stop".
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Safety Functions Integrated in the System/Drive
6.1 Safe stop (SH)
6-117