ABB IRC5 Product Manual page 48

2 Installation and commissioning
2.3.1 Unpacking the controller
Continued
Controller
PMC large
Weight of additional equipment
The table below shows the weight for equipment used with the IRC5 Panel Mounted
Controller:
Equipment
Transformer
Inductor
Protection class
The table below shows the protection classes for the IRC5 controller and the
FlexPendant:
Equipment
IRC5 Panel Mounted Controller
FlexPendant
The Panel Mounted Controller modules must be mounted in a water-proof and
air-proof cabinet. Internal cooling is recommended but if that is not possible, a
filter shall be used. When used in industrial environment, the cabinet should fulfill
IP54. When used in foundry environment, the cabinet should fulfill IP67.
Cabinet cooling
If the cabinet where the IRC5 Panel Mounted Controller is mounted needs cooling
depends on the power dissipation and the surface area of the cabinet. A heat test
is necessary to get any exact answers. A rough estimation can be made using the
following calculations.
The drive system efficiency is roughly 90%, so the power loss in the drive system
is at least near 10%. Note that the power loss in the drive system will increase
significantly if the motion cycle contains many frequent and sharp decelerations,
which cause very high bleeder power loss. Other equipment in the PMC typically
generates another 240W power loss.
For example, a customer RAPID program that creates 2000W output power may
generate a power loss of 220W in the drive system. Total power loss is then
approximately 460W.
The natural convection from a sheet metal cabinet is calculated as:
Q
A = Enclosure area (m
k = Heat transfer coefficient (W/m
sheet cabinet
ΔT=Ti-Tu = Temperature difference (K)
Continues on next page
48
Q =A*k* T
s
= Heat emitted by the enclosure surface (W)
s
2
)
© Copyright 2007-2018 ABB. All rights reserved.
Part
Complete controller
Control module
Drive module
Protection class
IP20
IP54
2
K), where k is approximately 5.5 for a metal
Product manual - IRC5 Panel Mounted Controller
Weight
max. 60 kg
14 kg
40 kg
Weight
13 - 51 kg
5.2 kg
3HAC047137-001 Revision: J