General Data - Control Techniques Commander SE Guide D'utilisation

Braking Resistors - High Temperatures
Braking resistors can reach high temperatures. Locate braking resistors so that
damage cannot result. Use cable having insulation capable of withstanding high
WARNING
temperatures.
Braking Resistors - Overload Protection
It is essential that an overload protection device is incorporated in the braking
resistor circuit. This is described in section 5.1.1 Thermal protection for an
WARNING
optional braking resistor on page 41.
3.1.1 *Input current
The input current values given could be exceeded where the supply fault current is
greater than 5kA or the phase voltages are not balanced. In these cases, input line
reactors are recommended. See section 4.4.3 Use of line reactors on page 31.
3.1.2 **Temperature effects on inrush currents
Size 1 - 4
Due to the design of the inrush circuit, the inrush current will be lower on the first power
up of the drive after a period of non-use and when the drive is cold. The inrush current
will increase when the time between power ups is short and the internal ambient
temperature within the drive is high.
3.2

General data

IP Rating
Size 1:
Sizes 2, 3 & 4:
Size 5:
NEMA Enclosure Rating
Size 1:
Sizes 2, 3 & 4:
Size 5:
NEMA 1 is an enclosure constructed for indoor use to provide a degree of protection to
personnel against incidental contact with the enclosed equipment and to provide a
degree of protection against falling debris.
Commander SE User Guide
Issue Number 9
IP20
The Ingress Protection rating is applicable to the drive when
the supplied rubber grommets are fitted into the gland plate.
IP20
The Ingress Protection rating is applicable to the drive when
the supplied rubber grommets are fitted into the gland plate
and the drive is mounted on a solid flat surface.
IP00 - Gland plate not fitted
IP10 - Gland plate fitted, cable glands not fitted (unused holes
covered)
IP20 - Gland plate fitted, cable glands fitted (blanking caps
covering unused holes)
The drive has a NEMA 1 enclosure rating when a suitable
method of cable entry is used, e.g. conduit
The drive has a NEMA 1 enclosure rating when mounted on a
solid flat surface and a suitable method of cable entry is used,
e.g. conduit
The drive does not have a NEMA 1 enclosure rating.
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