Delta Elektronika SM15K Series User Manual

INSTALLATION SM15K
13 / 32 DELTA ELEKTRONIKA B.V. rev. January 2021

The unit can operate only on a 3 phase grid (see fig. 5 - 2),
see the chapter 'Specifications' for the minimum and
maximum values.

No neutral connection is required.

After installation, connect the pull relief and add the safety
cover over the AC terminals.
5.4.2 DC POWER TERMINALS

These terminals are located at the rear side, marked as CON
B1 (PLUS) and CON B2 (MINUS) (see fig. 5 - 3).

For cable diameters and mounting torque see table 5 - 1.

Use cables with a sufficient voltage rating for the output
voltage of the unit.

With high output current, make sure to use low resistive
connections between the power supply and the load:
- Mount the cable lugs directly on the DC power strips
followed by a washer, a split washer and a nut.
Always in this order!
- Never place washers between the lugs and the strips
because this can result in excessive heat!
- Only use nuts and washers supplied with the unit.

Minimize the inductance in the leads by keeping them close to
each other or by using a multi-strand cable.

The DC power terminals are floating in relation to Protective
Earth.

After installation mount the safety cover over the DC power
terminals.
5.4.3 DC LOAD SENSING (REMOTE SENSING)

These connectors are located at the rear side, marked as
CON C and CON D (see fig. 5 - 3).

Use the included 4-pole headers for connecting the sense
wires to the unit. By pressing the orange clips with a small
screwdriver, the wires can be inserted or released.

For local sensing, check whether there is a link between +
and S+ and between – and S– on the sense header (default),
see fig. 5 - 4.

For remote sensing, please first read paragraph 6 of this
chapter for more details.

To use remote sensing, remove the links between + and S+
and – and S– and connect sense leads to the inputs for S+
and S–.

The connectors enable the use of 2 sets of sense wires but
one set is sufficient.

Use cables with a diameter of 0.3 ... 0.5mm
2
and with a
sufficient voltage rating for the DC output voltage of the unit.

The leads are only thin measuring wires but always have to
be shielded. In order to prevent interference, it is advisable to
twist the leads. See fig. 5 - 5.

With regards to safety, the sense terminals are at the level of
the DC power terminals.

After installation mount the safety cover over the sense
terminals.
5.4.4 LAN-CONNECTOR

This connector is located at the rear side, marked as LAN
(see fig. 5 - 6).

For Ethernet programming or Web Interface control, insert a
standard RJ45 cable in the LAN connector at the rear side.

With regards to safety, the LAN connector is at the level of
Protective Earth.
5.4.5 INTERLOCK CONNECTOR

This connector is located at the rear side, marked as CON F
(see fig. 5 - 6).

Use the included 3-pole header for connecting the interlock
wires to the unit. By pressing the orange clips with a small
screwdriver, the wires can be inserted or released.

For more details and specifications about Interlock, please
read paragraph 7 'Interlock Function' in this chapter.

When the Interlock function is not used, connect a link
between terminal 1 and 3 of the Interlock header (default).
fig 5 - 3
The two DC power terminals CON B1 and B2.
Con C and D are the sensing connectors.
fig 5 - 4
Local sensing with the power cables bundled close
together to minimize inductance.
fig 5 - 5
Remote sensing with shielded twisted wires and
the power cables bundled close together to
minimize inductance.
fig 5 - 6
The location of the LAN-connector (left) and the
Interlock connector (right) at the rear panel.

Delta Elektronika SM15K Series Specifications

General

Brand	Delta Elektronika
Model	SM15K Series
Category	Power Supply
Language	English