20 | Installation
Power Quality Controller – PQC | Operating Manual | FRAKO
WARNING!
Danger from electricity!
Touching live components at the instrument terminals and connecting
cables can cause serious injury or may even be life-threatening.
–
Installation, commissioning, decommissioning and removal of the PQC
may only be carried out by appropriately qualified personnel who have
read and understood the content of this manual.
–
When the PQC is being fitted and connected, the instrument and the
electrical system must be isolated from the power supply.
–
The isolated electrical system must be locked out to prevent its being
inadvertently switched on again.
– It must be verified that none of the terminals are live.
– All live components in the vicinity must be covered to prevent inadvertent
contact.
1. Turn the four retaining screws at the front of the PQC anticlockwise so that the
four retaining lugs in the corners of the instrument are swivelled to lie flat behind
its front panel.
2. Option: In the case of a cabinet with IP54 ingress protection, fit the gasket from
the accessories set in the rear groove behind the PQC front panel.
3. Insert the sheet-metal rear of the PQC through the cutout provided in the control
cabinet until fully home.
4. Press the PQC front panel gently against the control cabinet exterior and tighten
the four retaining screws at the corners by turning them clockwise, applying a
torque of ≤ 0.4 Nm. This causes the retaining lugs to swivel outwards and be
drawn towards the inner side of the cabinet wall until they are held tightly up
against it.
5.2 Electrical installation
5.2.1 Electrical installation procedure
WARNING!
Danger from electricity!
Touching live components at the instrument terminals and connecting
cables can cause serious injury or may even be life-threatening.
–
Installation, commissioning, modification and retrofitting at the PQC may
only be carried out by appropriately qualified personnel who have read and
understood the content of this manual.
–
When the PQC is being fitted and connected, the instrument and the
electrical system must be isolated from the power supply.
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