Safety Instructions; Fluid Installation - Burkert 6650 Manuel D'utilisation

• in case of a PWM voltage drop:
Duty cycle 33 %, f=20kHz
PWM-signal
U
20 kHz
100 %
0 5 ms
switch-on pulse
For OEM electronics (PWM) recommended circuit diagram:
Circuit diagram for 24 V design
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7. INSTALLATION

7.1. Safety instructions

DANGER!
Danger – high pressure in the equipment!
• Before loosening the lines and valves, turn off the
pressure and vent the lines.
WARNING!
Risk of injury from improper installation!
• Installation may be carried out by authorised techni-
cians 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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switch-off point
t
• for resistance reduction:
Switch-on pulse 100 % nominal voltage for 5 ms, then
holding voltage 35 % nominal voltage
U
100 %
holding voltage
35 %
5 ms
0
Switch-on pulse
For OEM electronics (resistance reduction) recommended
circuit diagram:
Circuit diagram for 24 V design
Alternatively series or parallel connection of several resistors

7.2. Fluid Installation

DANGER!
Danger – high pressure in the equipment!
• Before loosening the lines and valves, turn off the
pressure and vent the lines.
Installation position: any, actuator preferably upwards.
Procedure:
→
Before installation, clean any possible dirt off the pipe-
lines and flange connections.
→
Install a dirt trap to prevent malfunctions (Mesh size:
5 µm).
WARNING!
Danger through spillage of medium!
Leaking connections if seal seated incorrectly.
• Ensure that the supplied sealing gasket is seated
correctly!
The add-on dimension must not fall short of 4.5 mm!
Type 6650
switch-off point
t
Caution : Drop approx. 1.6 W
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