03 POWER ELECTRONICS AND CABINET FEATURES
3BHS206977 E01 REV H
ACS1000I AIR-COOLED
USER MANUAL
45/174
3.4.11
Cooling system
3.4.11.1
Fan configurations
The drive can be equipped with a non-redundant or a redundant fan configuration. The non-
redundant configuration consists of two fans, one for the integrated transformer (1 in Fig. 3-
14) and one for the inverter of the drive (2 in Fig. 3-14). The redundant configuration comprises
two fans for the integrated transformer and two fans for the inverter. This configuration
ensures that the operation of the drive is not interrupted if any single fan fails.
Figure 3-14: Fan configurations and air flow
3.4.11.2
Type of fan
The drive is equipped with one of the following types:
-
AC fans
: The AC fans are turned on and off with digital signals which switch contactors to
connect or disconnect the 3-phase auxiliary power. The AC fan speed is not controlled.
-
EC fans
: The electronically commutated (EC) fans are controlled via an analog signal from
the drive based on the inverter current. The EC fan speed is controlled depending on the
required cooling.
(1) Integrated transformer fan
(2) Inverter fan
1
2
Summary of Contents for ACS1000i air-cooled
Page 1: ... MEDIUM VOLTAGE AC DRIVES ACS1000i air cooled User manual ...
Page 3: ...Contents ACS1000i air cooled User manual ...
Page 5: ... 01 About this manual 01 5 16 ...
Page 16: ......
Page 17: ... 02 Important safety information 02 17 28 ...
Page 28: ......
Page 29: ... 03 Power electronics and cabinet features03 29 56 ...
Page 57: ... 04 Control system 04 57 70 ...
Page 71: ... 05 Transportation storage and disposal05 71 78 ...
Page 78: ......
Page 79: ... 06 Mechanical installation 06 79 88 ...
Page 88: ......
Page 89: ... 07 Electrical installation07 89 104 ...
Page 105: ... 08 Commissioning 08 105 110 ...
Page 110: ......
Page 111: ... 09 Operation 09 111 124 ...
Page 125: ... 10 CDP control panel 10 125 148 ...
Page 149: ... 11 Preventive and corrective maintenance 11 149 172 ...
Page 173: ......