Siemens SIMOTICS HT Series Operating Instructions & Installation Instructions page 9

Table 4-1 Derating factors...........................................................................................................................29
Table 4-2 Coolant flow rate and maximum permissible water pressure......................................................29
Table 4-3 Chemical requirements of the cooling water quality....................................................................29
Table 5-1 Stator winding insulation resistance at 40° C..............................................................................48
Table 5-2 Permissible deviations for aligning the machine with flexible coupling.......................................58
Table 6-1 Terminal designations using the 1U1-1 as an example..............................................................64
Table 6-2 Determining the cross-section of the grounding conductor.........................................................66
Table 6-3 Tightening torques of bolts (cable lug)........................................................................................66
Table 6-4 Bolt tightening torques (ground terminals) ...............................................................................66
Table 6-5 Minimum air clearance dependent on rms value of the alternating voltage U
Table 7-1 Guidelines for setting the tripping temperature of bearing thermometers...................................85
Table 7-2 Guidelines for setting the tripping temperature of winding thermometers...................................85
Table 8-1 Electrical faults .........................................................................................................................94
Table 8-2 Mechanical faults ......................................................................................................................94
Table 8-3 Roller bearing faults
Table 8-4 Cooling system faults
Table B-1 Tightening torques for bolted connections with a tolerance of ±10%........................................119
Figures
Figure 3-1 1FW4 water-cooled motor...........................................................................................................21
Figure 3-2 Rating plate diagram...................................................................................................................23
Figure 4-1 Example of a cooling circuit.........................................................................................................30
Figure 4-2 Axial fastening of the rotor...........................................................................................................35
Figure 4-3 Schematic representation of a single drive.................................................................................43
Figure 5-1 Balancing type on the drive-end side..........................................................................................53
Figure 5-2 Schematic diagram: Aligning the machine to the driven machine...............................................58
Figure 6-1 Water drip loop............................................................................................................................64
Figure 6-2 High-frequency grounding...........................................................................................................67
Figure 6-3 Neutral point connection..............................................................................................................68
Figure 6-4 Terminal box 1XB1631................................................................................................................69
Figure 6-5 Connection with cable lug and fixing screw (schematic diagram)...............................................70
Figure 9-1 Detailed view of the speed encoder..........................................................................................105
Figure 9-2 Replacing a speed encoder.......................................................................................................106
SIMOTICS HT Series HT-direct 1FW4...1......A
Operating Instructions 11/2018
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Table of contents
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rms
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