RUTHMANN 27409, Инструкция по эксплуатации и техническому обслуживанию

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8 Rectification of
malfunctions
BA.GB.12-27409-05-07-FTA-jr
RUTHMANN-Steiger
®
TB270
8-5
8.2 Effect of a malfunction on Steiger-operation
If the computer control ascertains a fault in the sensory system or control,
normally only a limited operation of the Ruthmann-Steiger is possible to
reach the basic position. Afterwards operation must be stopped. If consid-
erable faults occur the control switches onto Emergency Cut-off. The blink-
ing warning lamp „LML-cut-off“ shows the operating staff in the working
cage that a fault is existent. At the same time a corresponding plain text in-
dication concerning possible causes of the fault and the corresponding
fault-number is indicated on the display. The display changes automatically
over to the page of the fault message, independent of which page had
been selected before.
8.2.1 Restricted Steiger-operation
Recogniza
ble in the working cage at the blinking pilot lamp „Bridge safety
cut-
out“. Depending on the kind of malfunction restricted Steiger-
movements are still possible. Even also if no restriction of the movements
is noticed, operation must be stopped and the Steiger must be brought into
its basic position.
8.2.2 Conditional Emergency Cut-off
„Conditional Emergency Cut-off“ can be triggered off through:

emergency cut-off push button,

inclination of the working cage by more than 10° to the horizontal
line (mercury ring switch),

considerable exceeding of the max. perm. load moment.
In the working cage discernible at the blinking red warning light „LML-Cut-
off“. Steiger-operation is interrupted.
A conditional Emergency Cut-off, which was caused by a considerable ex-
ceeding of the load moment, may possibly be removed by reduction of
working cage load or by retraction of the telescope. If the malfunction had
been caused by a too large working cage inclination, the working cage
must be positioned horizontally.