The heater prevents humidity condensation inside the cabinet when the drive is not running.
The power output of the semiconductor-type heating elements depends on the environmental
temperature. The customer must switch the heating off when it is not needed by cutting the
supply voltage off.
The customer must supply the heater from an external 110…240 V AC power source.
See also
• circuit diagrams delivered with drive for the actual wiring.
￭ Cabinet lighting (option +G301)
This option contains LED lighting fixtures in each cubicle (except joining and brake resistor
cubicles) and a 24 V DC power supply. The lighting is powered from the same external
110…240 V AC power source as the cabinet heater (option +G300).
￭ Output for motor space heater (option +G313)
The option contains:
• load switch for providing electrical isolation during service
• miniature circuit breaker for overcurrent protection
• terminal block for external supply and heating element(s) connection
The heater is off when the drive is running. The customer controls the heating elements in
the motor windings on and off with the external supply. The power and voltage of the motor
heater depend on the motor.
See also sections:
•
Supplying power for the auxiliary circuits (page 78)
• circuit diagrams delivered with drive for the actual wiring.
￭ Halogen-free wiring and materials (option +G330)
The option provides halogen-free cable ducts, control wires and wire sleeves, thus reducing
toxic fire gases.
￭ Additional wire markings
Standard wire markings
As standard, wires and terminals are marked as follows:
• Plug-in connectors of wire sets: Connectors labeled with designation (eg. "X1"). Both
the connector and the individual wires are marked with pin numbers.
• Wires without a connector: Connector designation and pin number printed on wire (eg.
"X1:7").
• Fiber optic cables: Component and connector designation printed on marker tape.
• Main input, output and PE terminals: Connector identifier (eg. "U1", "PE") printed on
sticker on terminal, or on insulating material close to the terminal. PE cables marked
with yellow/green tape. (Main circuit power cables are not marked.)
Additional wire markings
The following additional wire markings are available.
Operation principle and hardware description 41
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