ABB ACQ80-04 Series User Manual

Note:
The nominal values of I
N
apply to the ambient temperature of 40°C (104°F). Derating is
needed above this temperature.
Derating
The load capacity (I
N
, I
Ld
; note that I
max
is not derated) decreases for certain situations, as
defined below. In such situations, where full motor power is required, oversize the drive so
that the derated value provides sufficient capacity.
Note:
If several situations are present at a time, the effect of derating for each situation is
cumulative.
Example:
If your application requires continuous 12.0 A of motor current (I
N
) at 8 kHz switching
frequency, the supply voltage is 400 V and the drive is situated at 1500 m, calculate the
appropriate drive size requirement as follows:
Switching frequency derating (page 114): The minimum size required is I
N
= 12.0 A / 0.66 =
18.18 A, where 0.66 is the derating for 8 kHz switching frequency (frames R0…R3).
Altitude derating (page 115): The derating factor for 1500 m is 1 - 1/10 000 m · (1500 - 1000)
m = 0.95. The minimum size required becomes then I
N
= 18.18 A / 0.95 = 19.14 A.
Referring to I
N
in the ratings tables (starting from Ratings (page 111)), drive type
ACQ80-04-011kW-4 exceeds the I
N
requirement of 19.24 A.
￭ Ambient temperature derating, IP20
ActionTemperature rangeFrame size
Need no derating+50°C belowR0
+122°F below
Derate 1% for every (1.8°F), derating 1%+50°C...55°C
122°F...131°F
Need no derating+50°C belowR1...R3
+122°F below
Derate 1% for every (1.8°F), derating 1%+50°C...60°C
122°F...140°F
Need no derating+40°C BelowR4…R8
+104°F Below
Derate 1% for every (1.8°F), derating 1%+40…+50°C
+104…+122°F
The output current is calculated by the current given in the rating tables multiplying by the
derating factor (k, as shown in the following figure)
Technical data 113

ABB ACQ80-04 Series Specifications

General

Brand	ABB
Model	ACQ80-04 Series
Category	Controller
Language	English