Interference Suppression Filters; Converter Size Selection; Output Rated Currents For The Two Functioning Classes; Drive Dc Current (Dc-Link Circuit) - gefran SM32 Bedienungshandbuch

2.5.5 Interference suppression filters

The converters of SM32 series must be equipped with an external EMI filter in
order to reduce the radiofrequency emissions on the mains line.
The filter selection is depending on the drive size and the installation environment.
Converter Filter type
SM32-480-185 EMI-480-150
SM32-480-280 EMI-480-320
SM32-480-420 EMI-480-400
SM32-480-650 EMI-480-800
SM32-480-1050 EMI-480-1000
SM32-480-1500 EMI-480-1600
SM32-480-2000 EMI-FN3359-480-2500

2.6. Converter Size Selection

Within the specified voltage field, the SM32 converter supplies the same rated di-
rect current independently of the voltage itself. The increase of the output voltage
causes an increasing in the transferred power, whereas inverters are devices with
a typically constant transferred power (the supplied current decreases with the
increasing of the output voltage).
As for the choice, therefore, the calculation is based on a common unit, the direct
current of the intermediate circuit, which, as for the inverters, is not mentioned into
the product instruction manual and has therefore to be calculated. Furthermore,
the confrontation between the two foreseen functioning classes has to be homo-
geneous (IEC 146 class 1 and 2).

2.6.1. Output Rated Currents for the Two Functioning Classes

Converter
SM32-480-185
SM32-480-280
SM32-480-420
SM32-480-650
SM32-480-1050
SM32-480-1500
SM32-480-2000
* Continuous service
** Service with overload possibility of 150% for 60 seconds.

2.6.2. Drive DC Current (DC-Link Circuit)

The following table states the direct current values of the DC-Link according to the
rated power of the motor connected to the inverter the current is calculated on the
basis of the following:
• 4-pole "standard" motor
• "typical" efficiency for "standard" motors (η
• the "typical" inverter efficiency is considered equal to 0.97 (η
Class / Max
Code
cable lenght
S7DGB
S7DGH
S7DGI
S7DGM
S7DGN
S7DGO
S7EMI5
DC-Link current (Terminals C / D)
IEC 146 Class 1 *
185 A
280 A
420 A
650 A
1050 A
1500 A
2000 A
SM32 • Instruction manual
Filter dimensions
HxWxD (mm)
C3 / 100mt 400 x 170 x 120
C3 / 100mt 300 x 135 x 260
C3 / 100mt 300 x 260 x 135
C3 / 100mt 350 x 280 x 150
C3 / 100mt 350 x 150 x 280
C3 / 100mt 400 x 160 x 300
C3 / 100mt 600 x 300 x 330
IEC 146 Class 2 **
150 A
225 A
340 A
540 A
850 A
1300 A
1500 A
)
mot
)
l
Weight
(kg)
4,4
13,2
13,4
23
24
34
55
31