ETS-Lindgren 7001-001, Руководство пользователя

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30 Operation ets-lindgren.com
The interlock hardware is implemented in a redundant way for maximum safety.
The interlock relay can be used to interrupt the signal path between the signal
generator and the power amplifier. An interlock switch mounted on the door of
the test chamber can be used to activate the safety relay, preventing personnel
from being subject to high field strengths when entering the test chamber.
Relay Errors
The EMSwitch plug-in card checks for the following error conditions of the
internal relays:
1. Over temperature— A temperature sensor close to each relay checks
for excessive heating of the relay. A high temperature error will
display if the relay temperature exceeds 85
°
C (185
°
F).
2. Switching error— Each internal relay has a set of control contacts
which are used to check if a relay has changed position. A
switching error message will appear if this check fails.
3. Interlock open for safety interlock relay— When the interlock of
relay A is opened, this will result in a safety interlock open error.