Burkert TopControl Basic 8694 REV.2, Quick Start Manual

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15
Electrical installation
Important information for the problem-free functioning of
the device:
▶
The installation must not cause back pressure to build up.
▶
Select a hose for the connection with an adequate
cross-section.
▶
The exhaust air line must be designed in such a way that
no water or other liquid can get into the device through
the exhaust air port (3) or (3.1).
▶
Keep the adjacent supply pressure always at least 0.5 –
1 bar above the pressure which is required to move the
actuator to its end position. This ensures that the control
behavior is not extremely negatively affected in the upper
stroke range on account of too little pressure difference.
▶
During operation keep the fluctuations of the pressure
supply as low as possible (max. ±10 %). If fluctuations are
greater, the control parameters measured with the X.TUNE
function are not optimum.
Exhaust air concept :
▶
In compliance with degree of protection IP67, an exhaust
air line must be installed in the dry area.
9 ELECTRICAL INSTALLATION
All electrical inputs and outputs of the device are not galvanically
isolated from the supply voltage.
9.1 Safety instructions
DANGER!
Risk of electric shock.
▶
Before working on equipment or device, switch off the power
supply and secure to prevent reactivation.
▶
Observe applicable accident prevention and safety regulations
for electrical equipment.
WARNING!
Risk of injury from improper installation.
▶
Installation may be carried out by authorized technicians
only and with the appropriate tools.
Risk of injury from unintentional activation of the system and
an uncontrolled restart.
▶
Secure system from unintentional activation.
▶
Following installation, ensure a controlled restart.
9.2 Electrical installation without fieldbus
communication
Two kinds of connections are used for the electrical bonding of
the positioner:
•
Cable gland with screw-type terminals
•
Multi-pole with circular plug-in connector M12 x 1, 8-pole
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Type 8694 REV. 2