Installing/mounting
4
4.1
Installation conditions
General installation conditions
When installing the Power Modules carefully observe the conditions listed below in order to
guarantee reliable, continuous and disturbance-free operation.
● The Power Modules are designed for installation in a control cabinet.
● The Power Modules are certified for use in environments with degree of pollution 2 without
condensation; i.e. in environments where no conductive pollution/dirt occurs.
● The built-in units fulfill IP20 degree of protection.
● You can find the permissible conductor cross-sections for the terminals in:
Connection terminals at the inverter (Page 60)
● The following section describes how you can install the Power Module in compliance with
EMC regulations:
EMC-compliant installation of a machine or system (Page 26)
● Devices in push-through technology – PT devices
– PT devices have IP20 degree of protection and at the rear of the control cabinet they
fulfil IP55.
– PT devices, FSF: A pressure compensation valve is necessary for the cabinet in order
to prevent underpressure in the cabinet.
Inverters for systems in the United States / Canada (UL/cUL)
● For a system configuration in conformance with UL/cUL, use the fuse types approved for
UL/cUL, specified in the Technical data, or the circuit breakers under the following Internet
address.
–
Fuse types: Technical data (Page 73)
–
Circuit breaker (
https://support.industry.siemens.com/cs/ww/en/view/109486009
)
● The integrated semiconductor short-circuit protection does not provide cable protection.
● On the system side, provide cable protection in conformance with NEC or CEC, Part 1 and
the local regulations.
● The inverters provide internal motor protection corresponding to UL61800-5-1. The
protection threshold is 115 % of the inverter full load current. When commissioning, you
can adapt the motor overload protection using parameter p0640.
● For frame size FSF, to connect the line supply and motor only use UL approved ring-type
cable lugs (ZMVV), which are certified for the particular voltage, with a permissible current
of at least 125 % of the input and output current. Use the higher value as basis.
Power Module PM240-2
Hardware Installation Manual, 08/2017, A5E33294624B AG
23
