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2
2.5 Inverter unit section
2.5.1 Drive sizes FR4-FR8
The inverter unit section (IUS) includes one or several smaller NXI drives from the VACON
®
product
family. The inverter units are all Vacon’s premium NXP drives.
* Only option board and fieldbus options
**Top exit +400mm can be shared between two sections
*** Section for cabling with top cabling option (+COT)
As standard the IUS section includes the following (see Figure 4):
1. Input fuses (DC fuses)
2. Fuse switch (IEC FR4-FR6)
3. The NXI drive(s)
4. Control box (integrated into the module)
5. Terminals for control and indication signals
As pre-engineered standard options we can provide the following:
• dU/dt (+ODU)
• Input Switch, DC disconnect (+ISD)
•Arc detection (+ADU)
• Motor fan control (+AMF)
• Motor heater feeder (+AMH)
• Mechanical break control (+AMB)
•Top cabling (+COT)
• UL approved design and components (+NAR)
• Cabinet heater (+ACH)
•Cabinet light (+ACL)
Table 9. Available IUS section sizes FR4-FR8
IUS type Drive size Number of drives/section Width x Height x Depth (mm)
IUS_4_x FR4*
1-3 400 x 2100 x 605**
4-14 1200 x 2100 x 605**
IUS_6_x FR6 1-2 400 x 2100 x 605**
IUS_7 FR7 1 400 x 2100 x 605**
IUS_8 FR8 1 400 x 2100 x 605**
COT_4-8*** - - 400 x 2000 x 605
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