16
Installation
IN-ECO spol. s r.o.
i
CAUTION
Incorrect connection of the motor can lead to
serious damage to the unit!
Observe the motor rating plate. It is imperative that the operating conditions correspond to the data given on the rating
plate!
Deviations permissible without reduction in performance:
>
±5 % voltage deviation
>
±2 % frequency deviation
Make the connection in accordance with the circuit diagram in the terminal box. Connect the protective conductor.
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Use suitable cable lugs when doing so
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The electrical connection must be permanently safe
For motor overload protection:
>
Use motor circuit breakers.
>
Set the motor circuit breakers to the nominal current spe-
cified on the rating plate.
For supply by converter:
>
High-frequency current and voltage harmonics in the mo-
tor supply cables can lead to emitted electromagnetic
interference.
>
Use shielded supply cables, whereby the shield must be
installed on both sides
7.2 Electrical connection (motor)
The electrical connection must be carried out as follows:
- according to the applicable national and local laws and regulations,
- according to the applicable systemdependent prescriptions and requirements,
- according to the applicable regulations of the utility company.
DANGER
Electrical danger!
Malpractice can result in severe
injuries and material damage!
DANGER
Electrical danger!
Before beginning work on the unit or system, the
following measures must be carried out:
. Deenergize
. Secure against being switched on again.
. Determine whether deenergized.
. Ground and short-circuit.
. Cover or block off adjacent energized parts.
WARNING
Danger due to gauge pressure and vacuum!
Danger due to escaping fluid!
Before beginning work on the unit or system:
. Interrupt supply of operating liquid.
. Bleed lines and vacuum pump/compressor
(depressurize).
WARNING
Electrical danger!
Clearance between bare live parts and between bare
live parts and ground: at least 5.5 mm [0.217“] (at a
nominal voltage of Vn ≤ 690V)
Make sure there are no protruding pieces of wire!
WARNING
Electrical danger!
The terminal box must be free from
- foreign bodies
- dirt
- a humidity
Terminal box cover and cable entries must be tightly
closed so as to make them dustproof and waterproof.
Check for tightness at regular intervals.
DANGER
Electrical danger!
The electrical connection may be carried out by
trained and authorized electricians only!