Siemens SIMOTICS HV M, Operating Instructions Manual

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Protecting the cooling circuit against corrosion
You protect the cooling circuit against corrosion when the machine has already been in
operation and is then placed in storage or put out of operation. Also observe the information
in the operating instructions supplied by the manufacturer of the cooler.
1. Completely drain the cooling ducts. To be completely certain, use compressed air to clean
the cooling water ducts so that they are completely empty.
2. Flush the cooling water ducts with a corrosion-protection emulsion to avoid the buildup of
rust.
See also
Additional documents (Page 129)
4.16 Converter operation
4.16.1 Rotational speed limit values
Danger as a result of resonance within certain speed ranges
At over-critical speeds, machines encounter resonance within certain speed ranges. Such
vibrations can reach impermissibly high levels. This can result in death, serious injury or
material damage.
● The controller must ensure that those speed ranges are blocked when the converter is in
operation. Refer to the "Electrical Data" section in the appendix for details of the blocked
speed ranges.
● The blocked speed ranges must be run through rapidly.
Machine damage due to excessively high speeds
Excessive rotational speed can lead to serious damage to the machine. This can result in
death, serious injury or material damage.
● Avoid operation above the permissible speed by using the appropriate control function.
● Observe the speeds stamped on the rating plate and specified in Chapter "Electrical data"
in the appendix.
In the case of converter operation, the motor is designed for operation with square-law load
characteristics. The motor overload must not exceed 110 % of the rated torque. The safety is
reduced for higher overloads. This can result in shaft breakage. Parts and components that
are flung off may result in death, serious injury or material damage.
Preparations for use
4.16 Converter operation
SIMOTICS HV M 1RN76308PR900CG0-Z
Operating Instructions 07/2018
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