4
Safety
2
Safety
2.1 Safety precautions
• Observe all safety and accident prevention regulations.
• Regularly check the proper observance off all safety measures.
• Do not loosen any plug connection during operations.
• Keep leads and cables well away from hot surfaces (> 70 °C).
• The unit has been accredited with protection class IP 65. When installing into
ambient conditions, which afford other protection classes, the necessary mea-
sures must be taken.
• Always ensure a safe connection to the protective earthing conductor (PE, pro-
tection class I).
• Before carrying out any work disconnect the unit and all associated installations
safely from the mains.
2.2 Proper use
• The relay box may only be used to control vacuum backing pumps on Pfeiffer
Vacuum turbopumps with related electronic drive units.
• The relay box may only be used up to the specified maximum contact load.
• Permissible electronic drive units for the connection of the relay boxes:
– integrated electronic drive unit TC 110 with connection cable
– integrated electronic drive unit TC 110 with TCS 12
– integrated electronic drive unit TC 400
– integrated electronic drive unit TC 400 with Y-Connector
– integrated electronic drive unit TC 1200
– integrated electronic drive unit TC 1200 with Y-Connector
– integrated electronic drive unit TM 3000 with adapter cable
– external electronic drive unit TCP 350 with adapter cable
2.3 Improper use
Improper use will cause all claims for liability and warranties to be forfeited. Im-
proper use is deemed to be all use for purposes deviating from those mentioned
above, especially:
• The connection of a mains power voltage not corresponding to the rating plate
• Operation with contact loads higher than the information on the rating plate
NOTE
Duty to inform
Each person involved in the installation or operation of the unit must read and observe
the safety-related parts of these operating instuctions.
The operator is obligated to make operating personnel aware of dangers originating
from the unit or the entire system.
NOTE
CE conformity
The manufacturer's declaration becomes invalid if the operator modifies the original
product or installs additional components!
Following installation into a plant and before commissioning, the operator must
check the entire system for compliance with the valid EU directives and reassess it
accordingly.
