5 Installation at Site
23 of 68
Calio
1157.821/04-EN
DANGER
Hazardous electrical voltage when the covers of the terminal wiring compartments
are removed
Danger of death from electric shock!
▷ For working on the terminals, switch off the power supply at least 5minutes
prior to commencing work and ensure that it cannot be switched on again
unintentionally.
▷ If applicable, switch off the external power supply to message relays and
control cables and make sure it cannot be switched on again unintentionally.
▷ Keep the covers of the terminal wiring compartments closed during operation
as well as during maintenance work.
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷ Observe the technical specifications of the local energy supply companies.
CAUTION
Fluid entering cable glands or power supply installation
Electronics failure, short circuit!
▷ Lay cables in a loop so any water dripping onto the cables will run off.
NOTE
The cable must be of type H05VV-F 3G1 or similar, with an outside diameter
≥7.2mm. Circuit breaker: 10/16 A (minimal rated current x 1.4) slow blowing fuse
or automatic circuit breaker type C.
NOTE
Using a plug-type connection for the power cable is impermissible.
Connection to power supply must be effected by means of a fixed power cable with
a minimum cross-section of 3×1.5mm
2
.
Connection to the power supply must be effected by a power cable which is fitted
with an all-pole isolating switch with a minimum contact opening of 3mm.
If the power cable of the device is damaged, have it replaced by the manufacturer,
a customer service technician or a similarly qualified person. See EN60335-1.
Residual current device If residual current devices (RCDs) are used, frequency inverters must in accordance
with DINVDE0160 be connected via universal AC/DC sensitive residual current
devices (RCDs). Standard AC sensitive RCDs might either fail to respond or respond
erroneously to any direct-current components which may be present. Discharge
current per pump <3.5mA.
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