System integration
7.1 System requirements
Permissible voltages
The SIMODRIVE 611 drive system is dimensioned for direct operation on TN line supply systems. The following table shows the permissible rated voltages of TN line supply systems that apply to the motors.
Table 7- 1 | Permissible rated voltages of TN line supply systems, resulting DC link voltages and | ||||
| converter output voltages |
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Permissible line | Resulting DC link voltage UZK | Drive output voltage (rms value) | |||
supply voltage |
|
| Uamax | ||
400 V |
| 600 | V (controlled) | 425 | V (controlled) |
|
| 540 | V (uncontrolled) | 380 | V (uncontrolled) |
480 V |
| 648 | V (uncontrolled) | 460 | V (uncontrolled) |
In combination with the drive system SIMODRIVE 611, the motors are generally approved for operation on TN and TT networks with grounded neutral and for IT networks. A protective device should be provided for operation on IT networks, which switches off the drive system in the case of a ground fault. In operation with a grounded external conductor, an isolating transformer with grounded neutral (secondary side) must be connected between the supply and the drive system to protect the motor insulation from excessive stress.
Adaptation transformers that have been tailored to the system are available for operation on IT or TT line supply systems.
Requirements
●The power unit is selected depending on the motor current at torque M0 and a speed 1 [rev/min] or according to the maximum motor current.
●The motors should be set up as synchronous rotation motors (SRM).
●The encoder system used must be harmonized with the particular application.
Drive systems
The following SINUMERIK/SIMODRIVE systems are suitable:
●SIMODRIVE 611 digital with
●SIMODRIVE 611 universal HRS
●SINUMERIK 810D
106 | 1FW6 |
Configuration Manual, 05/2009, |
