If 2 PSM 510 modules are installed in parallel, use an AC choke as specified in
. See
5.10.1.2 Connecting 2 PSM 510 Modules
for further information.
Table 24: Line Choke Characteristics for 2 PSM 510 installed in parallel
Model
Minimum I
rms
[A]
U
rms
[V]
Inductance [mH]
PSM 510 (2 x 30 kW)
125
500
0.24 ±10%
Danfoss recommends mounting the AC line choke close to the PSM 510.
The maximum cable length depends on the cross-section, and the required voltage and current at the DC-link.
If the AC line chokes are mounted away from the PSM 510, the maximum cable distance is 5 m.
5.10.1.1 Connecting 1 PSM 510 to the AC Choke
Connect the PSM 510 to the electric grid with the correct AC choke for the power size of the PSM 510.
STATUS PSM
DEV
SVS ST
NET ST
LINK/ACT
X1
X2
LCP
LCP
STATUS DAM
DEV
SVS ST
NET ST
AUX
LINK/ACT
X1
X2
X3
e3
0b
i2
35
.1
1
PS
M
5
10
D
A
M
5
10
. . .
Illustration 42: Connecting 1 PSM 510 to the AC Choke
5.10.1.2 Connecting 2 PSM 510 Modules to the AC Choke
Connect the PSM 510 modules to the same AC choke as shown in
Ensure the choke used is the correct size based on the combined power of the PSM 510 modules.
When 2 PSM 510 modules are used, the wiring between the AC line choke and each PSM 510 must be the same length within a
tolerance of 0.5 m.
Connect each PSM 510 to the AC choke directly. Parallel wiring is not permitted.
AQ262449648484en-000101 / 175R1135 | 73
Danfoss A/S © 2020.08
Electrical Installation
VLT® Servo Drive System ISD 510/DSD 510
Operating Guide
