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Crane System Design
3.2 Assembling the Frequency Converter
System
3.2.1 Tools Required
Operating Instructions for the FC Series.
Metric socket set
Socket extensions
Torx driver set
Torque wrench
Needle nose pliers
Magnetic sockets
Ratchet
Hex wrench set
Screwdrivers
Additional Tools Recommended for Testing
Digital volt/ohmmeter (must be rated for 1200 VDC for 690 V units)
Voltmeter
Oscilloscope
Clamp-on style ammeter
Test cable p/n 176F8766
Signal test board p/n 176F8437
Power supply: 610 - 800 VDC, 250 mA to supply external power to
4 power cards and the control card.
Power supply : 24VDC, 2 A for external 24V power supply.
3.2.2 General Torque Tightening Values
For fastening hardware described in this manual, the torque
values in the table below are used. These values are not
intended for diode or IGBT fasteners. See the instructions
included with those replacement parts for correct values.
Shaft Size
Driver Size Torx/
Hex
M4
T-20/7mm
M5
T-25/8mm
M6
T-30/10mm
M8
T-40/13mm
M10
T-50/17mm
M12
18mm/19mm
Table 3.2 Torque Values Table
®
VLT
Active Front End AFE 302 Operating Instructions Liebherr
7–19mm
100–150mm (4in and 6in)
T10 - T50
0.675–19Nm (6–170in-lbs)
Standard and Philips
Torque (in-
Torque (Nm)
lbs)
10
1.0
20
2.3
35
4.0
85
10
170
19
170
19
®
MG.33.X2.02 - VLT
is a registered Danfoss trademark
3
3
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