Description
The bus bar kit is designed for the specic VLT® HVAC Drive FC
102, VLT
®
AQUA Drive FC 202, and VLT® AutomationDrive FC
302 D4h-size VLT
®
Parallel Drive Modules mounted in a Rittal
TS8 enclosure. The bus bars in this kit link 2 drive modules in
parallel.
Kit Part Number
Part number Kit description
176F6489
Bus bar kit for the VLT
®
Parallel Drive Modules
(12-pulse, 2-drive system)
Table 1.1 Part Number for the VLT® Parallel Drive Modules
Bus Bar Kit
Items Supplied
The kit contains the following parts:
Bus bar assembly
•
Nut with integrated washer, M5 (10)
•
Nut with integrated washer, M8 (10)
•
Nut with integrated washer, M10 (6)
•
Screw, M5 x 12 mm (40)
•
Screw with integrated washer, M10 x 30 (6)
•
Stand-o, M5 x 25 (15)
•
Ground bus bar, 800 mm (1)
•
Ground plate (1)
•
Ground jumper plate (2)
•
Ground jumper bus bar (2)
•
Ground clamp (1)
•
EMI/EMC bracket, left (2)
•
EMI/EMC bracket, right (2)
•
EMI/EMC bracket, front (2)
•
EMI/EMC shield, lower (1)
DC bus assembly
•
L-brackets (2)
•
DC-link jumper bus bar (-) (2)
•
Jumper bus bar (+) (2)
•
DC bus support plate (1)
•
DC-link bus bar (2)
AC bus bar assembly
•
Brake terminal, left (2)
•
Brake terminal, right (2)
•
Brake terminal bracket (2)
•
Solid AC bus bar, (6)
•
AC bus bar assembly bracket (1)
•
S-bracket (1)
•
Flexible AC bus bars (6)
•
AC support bracket (1)
•
Side support (2)
Safety
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors, which
can remain charged even when the unit is o. High voltage
can be present even when the warning indicator lights are
o. Failure to wait 20 minutes after power has been
removed before performing service or repair work, could
result in death or serious injury.
•
Stop the motor.
•
Disconnect the AC mains, permanent magnet type
motors, and remote DC-link supplies, including
battery back-ups, UPS, and DC-link connections to
other frequency converters.
•
Wait 20 minutes for the capacitors to discharge fully,
before performing any service or repair work.
•
Measure the voltage level to verify full discharge.
Installation
NOTICE
If both a bus bar kit and a back-channel cooling kit are
being installed in the cabinet, install the back-channel
cooling kit rst.
Installation Instructions
Bus Bar Kit for 12-pulse, 2-drive System
VLT
®
Series FC 102, FC 202, and FC 302
Danfoss A/S © 04/2016 All rights reserved. MI92O102
NOTICE
APPROVALS AND CERTIFICATIONS
This VLT® Parallel Drive Modules bus bar kit is UL 508C
compliant. These installation instructions describe how to
install Danfoss-supplied bus bars which, if followed, meet
specic agency approvals and certications. Seek agency
approvals or
certications
apart from Danfoss if designing
and building other congurations.
Installing DC-link Bus Bars
1. Install 1 L-bracket inside the top of the enclosure on
each side. Secure each bracket with 3 M5 nuts and
torque to 2.3 N · m (20 in-lb). See Illustration 1.1.
1 L-brackets 2 DC fuse with microswitch
Illustration 1.1 Installation of DC Bus Bar L-brackets above the
DC Fuses
2. Install the 6 stand-os onto the support plate. Torque
to 2.3 N · m (20 in-lb). Refer to Illustration 1.2.
3. Install the 2 DC-link bus bars onto the support plate
using 3 M5 nuts per bus bar. Torque to 2.3 N · m
(20 in-lb).
1 Support plate 3 DC-link bus bars
2 Stand-os 4 M5 nut
Illustration 1.2 Installing DC-link Bus Bars onto Support Plate
4. With the DC-link bus bars facing downward, slide the
support plate onto the L-brackets. Secure the support
plate with 6 M5 screws and torque to 2.3 N · m
(20 in-lb). Refer to Illustration 1.3.
5. Install the DC+ and DC- jumper bus bars between
the DC fuses and the DC bus bars. Refer to
Illustration 1.4.
1L-brackets
2 DC-link bus bar assembly (support plate and bus bars)
Illustration 1.3 Installation of DC Bus Bars onto L-brackets
Installation Instructions
Bus Bar Kit for 12-pulse, 2-drive System
VLT
®
Series FC 102, FC 202, and FC 302
2
Danfoss A/S © 04/2016 All rights reserved. MI92O102
1 DC-link jumper bus bars (+/- indicated in drawing) 3 Microswitch
2 DC-link bus bar 4 DC fuse
Illustration 1.4 Installation of DC Jumper Bus Bars
Installation Instructions
Bus Bar Kit for 12-pulse, 2-drive System
VLT
®
Series FC 102, FC 202, and FC 302
MI92O102 Danfoss A/S © 04/2016 All rights reserved.
3
Assembling the AC Bus Bar Subassemblies
The AC bus bar assembly consists of the following 3 subassemblies, as shown in Illustration 1.5.
1 AC bus bar assembly bracket 3 AC support bracket with drive module 2 brake terminal assembly
2 Motor bus bar subassembly – –
Illustration 1.5 Exploded View of the AC Bus Bar Assembly
1. Install the left and right brake terminals onto the brake terminal bracket using 4 M5 nuts. Torque to 2.3 Nm (20 in-lb).
2. Secure the brake terminal assembly to the AC bus bar assembly bracket with 2 M8 nuts. Torque to 9.6 Nm (85 in-lb).
Refer to Illustration 1.6.
3. Install the S-bracket to the AC bus bar assembly bracket using 2 M5 nuts. Torque to 2.3 Nm
(20 in-lb).
1 AC bus bar assembly support bracket 4 M5 nut
2 Mounting point for lower EMI/EMC shield 5 S-bracket
3 Brake terminal assembly (terminals and bracket) 6 Studs that insert into the side support bracket
Illustration 1.6 Assembling the AC Bus Bar Assembly Bracket
Installation Instructions
Bus Bar Kit for 12-pulse, 2-drive System
VLT
®
Series FC 102, FC 202, and FC 302
4
Danfoss A/S © 04/2016 All rights reserved. MI92O102
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