499231
IV-50 EC | 11
Warning
Danger from electrical voltage.
Danger
Motor components and wiring may remain charged with high voltage
and may cause injuries to people, even after the AC power supply
has been disconnected or turned off. Wait at least 10 minutes to
guarantee the full discharge of capacitors.
8 Electrical connection
8.1 Safety information
◊ Observe the 5 rules of electrical safety, see 2.3 Five rules of electrical safety.
◊ Prevent the ingress of water into the connection box.
◊ The electrical connection must be carried out by qualified persons, see Table 1: Qualifications.
◊ Wear protective equipment during all work in the vicinity of the fan, see 2.2 Personal protective equipment.
8.2 Preconditions
◊ Observe and respect local conditions, regulations, and laws.
◊ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
◊ Safety elements may not be dismantled, circumvented or deactivated.
◊ Install a circuit breaker in the permanent electrical installation with the appropriate contact opening.
8.3 Protecting the motor
◊ Motor lines and temperature monitor lines should be laid separately on principle.
◊ Line voltage and controls wiring should be run in separate conduit.
8.3.1 Internal motor protections
◊ The motor has the following inherent electronic protections:
◊ Input under-voltage protection
◊ Locked rotor protection
◊ Overload protection
◊ Over-temperature protection
◊ Output overcurrent / short-circuit protection
Important
Damage to motor due to overcurrent, overload or short circuit.
Note:
The minimum interval between consecutive starts is 5 minutes.
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