Burkert Type 8798 - Manual (Page 32)

32
Electrical Installation
Caution: (Exhaust air concept):
In compliance with protection class IP67, an exhaust air line
must be installed in the dry area (control function A and B).
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.
10. elecTrical insTallaTiOn
10.1. safety instructions
Danger!
risk of electric shock!
• Before reaching into the system, 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.
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Type 8798