Transformer Thermal Rollback - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual
Hide thumbs
Also See for SINAMICS PERFECT HARMONY GH180:
- Function manual (338 pages) ,
- Operating instructions manual (224 pages) ,
- Reference manual (48 pages)
Table of Contents
Figure 7-23
Parameters for the Proportional and Integral Gains of the Regulator
Refer to Single Phasing Menu (7010) in Section Options for Drive Protect Menu (7) of
Chapter Parameter Assignment / Addressing for parameters associated with this function.
• SPD prop gain (7020) represents the proportional gain of this regulator.
• SPD integral gain (7030) represents the integral gain of this regulator.
• SPD threshold (7040) sets the level to generate a single-phasing alarm if the output level of
this regulator falls below the SPD threshold.
• A single-phase rollback condition is indicated by the drive, by displaying SPHS instead of
MODE on the keypad, and by displaying SPHS in the ToolSuite.
7.10.4
Transformer Thermal Rollback
The input currents to the drive are monitored continuously. The largest among the three input
phase currents is limited to be at or below 105% of the nominal rating of the transformer. Drive
output torque is reduced when this current level is exceeded. A regulator is implemented to limit
the maximum input current to 105% by reducing the output current. The output of this regulator
sets the output torque limit.
Parameter for the Integral Gain of the Regulator
Refer to Input Protect Menu (7000) in Section Options for Drive Protect Menu (7) of
Chapter Parameter Assignment / Addressing for the parameter associated with this function.
• Xformer thermal gain (7090) represents the integral gain of this regulator.
• During transformer thermal rollback, the drive displays T OL on the keypad and in the
ToolSuite.
NXGPro+ Control Manual
Operating Manual, A5E50491925A
Drive Power (P
) as Function of Input Unbalance Voltage (E
max
Operating the Control
7.10 Drive Output Torque Limiting
)
unbalance
215
- Quick Links:
- Table of Contents
Hide quick links:
Chapters
Table of Contents
Troubleshooting
