Siemens SIMODRIVE 611A Installation And Planning Manual page 147

02.98
Checking the start inhibit
Siemens AG 1998 All Rights reserved
SIMODRIVE 611 (PJ)
The following checks must always be made at the first start–up, and, when
possible must be repeated at certain intervals during the plant lifetime.
A check should also be made after longer production standstills. Each indivi-
dual drive as well as the NE module must be checked.
The drive impulses must be inhibited by withdrawing the energization vol-
tage at terminal 663. Further, the acknowledge contact of the start inhibit
must close.
The drive then coasts down.
Disabling the protective devices, e.g. opening the protective doors while the
drive is running. If an inadmissible hazard is then created, then the check
can be executed as follows:
The signal line to door contact TK is disconnected while the drive is running.
In this case, the line contactor must isolate all of the drives of the machine
and system from the supply.
All possible fault situations, which could occur, must be individually simula-
ted in the signal lines between the acknowledge contacts and the external
control as well as the signal evaluation functions of this control.
In every fault condition, the line contactor must isolate all of the drives of the
machine and system from the line supply.
In the setting–up mode, connect voltage to terminal 112 (terminal 9 ). The
line contactor must then isolate all drives of the machine and system from
the supply.
For the connection between the power supply and the power DC link, for all
of the test points, where the line contactor isolates the drives from the sup-
ply, the connection between the power supply and the power DC link must
be instantaneously and reliably interrupted.
This connection is not permissible in the setting–up mode.
6SN1197–0AA00 02.98 Edition
9.5.7 Checking the start inhibit
9
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