Heatsink Fan - Control Techniques Commander SK2202 Getting Started Manual

Safety Product Mechanical
Information Information Installation
On Commander SK size 4, 5 and 6, the supply and motor ground
connections are made using an M10 bolt at the top (supply) and bottom
(motor) of the drive.
Figure 4-6 Size 4, 5 and 6 ground connections
Supply
ground
Motor
ground
The supply and motor ground connections to the drive are connected
internally by a copper conductor with a cross-sectional area given below:
2
size 4: 19.2mm2 (0.03in , or slightly bigger than 6 AWG)
2
size 5: 60mm2 (0.09in , or slightly bigger than 1 AWG)
2
size 6: 75mm2 (0.12in , or slightly bigger than 2/0 AWG)
This connection is sufficient to provide the ground (equipotential
bonding) connection for the motor circuit under the following conditions:
To standard
Supply phase conductors having cross-sectional
area not exceeding:
IEC 60204-1 &
size 4: 38.4mm
EN 60204-1
size 5: 120mm
size 6: 150mm
Supply protection device rating not exceeding:
size 4: 200A
NFPA 79
size 5: 600A
size 6: 1000A
If the necessary conditions are not met, an additional ground connection
must be provided to link the motor circuit ground and the supply ground.
4.2

Heatsink fan

4.2.1 Heatsink fan operation
The Commander SK is ventilated by an internal heatsink mounted fan.
The fan housing forms a baffle plate, channelling the air through the
heatsink chamber. Thus, regardless of the mounting method (surface or
through-panel mounting), the fitting of additional baffle plates is not
required.
Ensure the minimum clearances around the drive are maintained to
allow air to flow freely.
The heatsink fan on Commander SK size 2 is a dual speed fan and on
size 3 to 6, it is a variable speed fan. The drive controls the speed at
which the fan runs based on the temperature of the heatsink and the
drive's thermal model system. The Commander SK size 3 to 6 is also
fitted with a single speed fan to ventilate the capacitor bank.
Commander SK Size 2 to 6 Getting Started Guide
Issue Number: 2
Electrical Keypad and
Installation Display
Conditions
2
2
2
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Quick Start
Parameters Diagnostics
Commissioning
The heatsink fan on the Commander SK size 2 to 5 is supplied internally by
the drive. The heatsink fan on the size 6 requires an external +24Vdc power
supply.
4.2.2 Heatsink fan supply
The heatsink fan on size 6 requires an external +24Vdc supply. The
connections for the heatsink fan supply must be made to the upper
terminal connector near to the W phase output on the drive. See Figure
4-7 for the position of the heatsink fan supply connector.
Figure 4-7 Location of size 6 heatsink fan supply connections
Figure 4-8 Size 6 heatsink fan supply connections
Not used
65 64 63
55 54 53
To the heatsink fan
Pre-wired internally
The heatsink fan supply requirements are as follows:
Nominal voltage:
Minimum voltage:
Maximum voltage:
Current drawn:
Recommended power supply: 24V, 100W, 4.5A
Recommended fuse:
The AC supply to the drive must be fitted with suitable
protection against overload and short circuits. Failure to
observe this requirement will cause risk of fire. See section
2.3 Rating Data on page 10 for fuse data.
WARNING
Options Parameter List
24V heatsink fan supply
0V
62 61 60
Upper terminal connector
52 51 50
Lower terminal connector
24Vdc
23.5Vdc
27Vdc
3.3A
2
4A fast blow (I t less than 20A
UL Listing
Information
2
s)
31