Installation Instructions

Technical data
7.9 Electromagnetic compatibility of variable-speed drives
PM230 Power Module, IP55
Hardware Installation Manual, 12/2016, A5E35319202B AB
63
●
Inverters with an LO base load input current > 16 A and ≤ 75 A
The drive system is in compliance with IEC/EN 61000-3-12 under the following
precondition:
– Short-circuit power S
SC
at the connection point of the customer's system to the public
grid, is not greater or is equal to the value according to the following formula:
S
SC
≥ 120 ∙ √3∙ U
in
∙ LO base load input current
The installation company or company operating the drive system is responsible for
ensuring that this device is only connected at a connection point with an appropriate
short-circuit power (fault level).
Example:
FSD inverter, 400 V, input current, 42 A:
S
SC
≥ 120 ∙ √3 ∙ 400 V ∙ 42 A
This corresponds to a low-voltage transformer with an apparent power rating of
approximately 160 kVA … 200 kVA with 4 % … 6 % U
k
If these preconditions do not apply, then the installation company or company operating
the device must obtain authorization from the grid operator to connect the device
regarding the harmonic currents.
Harmonic currents (Page 64)
●
Inverters with an LO base load current > 75A
There are no standard-related requirements for installing devices such as these.
However, it is recommended to inform the grid operator when connecting such a device.
Interference emission - Operation in the First Environment, Category C1
Inverters of Category C1 (Class B) with integrated filters comply with the requirements of the
First Environment, Category C1, with reference to interference emission under the following
conditions:
● The drive system is installed by appropriately qualified personnel in compliance with EMC
regulations and the installation notes provided in the manual.
● The current is not higher than the LO input current of the inverter (high-frequency, cable-
conducted interference voltages).
Specific technical data (Page 53)