Delta Elektronika SM15K Series, Product Manual

Page: 10 / 19

ISOLATED CONTACTS SM15K INTERFACES
10 / 19 DELTA ELEKTRONIKA B.V. rev. Nov. 2019
4 ISOLATED CONTACTS

Warning! carefully read the chapter "Safety Instructions" in
this manual before connecting or operating the unit!
4.1 CONDENSATION

During normal operation, humidity will not harm the interfaces,
provided the air is not aggressive. The heat normally
produced in the power supply will keep it dry.

Avoid condensation inside the interfaces, to prevent break-
down. Condensation can occur during a period the power
supply has been switched off (or operating at no load) and the
ambient temperature is increasing. Always allow the power
supply to dry before switching it on again.
4.2 TEMPERATURE & COOLING

The storage temperature range is
–40 to +85 °C.

The operating temperature range is
–20 to +50 °C.But this
temperature range only holds when the air-intake and air-
outlet of the power supply are unobstructed and the
temperature of the air-intake is not higher than +50°C.

When the power supply is mounted in a cabinet, please note
that the temperature of the air-intake should be kept low and
avoid a short circuit in the airflow i.e. the hot air leaving the
air-outlet entering the air-intake again.

Please note: a lower temperature extends the lifetime of the
interface.
4.3 FIRMWARE

First install the interface inside the unit, then check the
firmware package is P0120 or higher. In the front menu, go to:
SYSTEM INFO -> UNIT-> VERSION.

If an update is required, refer to the SM15K unit manual how
to do this.
4.4 HARDWARE INSTALLATION

Warning! Never make connections to the Power Inputs and
Outputs or the Sense Connector when the SM15K unit is
connected to the mains supply or power outlet!

Safety covers are used to cover these in- and outputs.
4.4.1 INSERT INTERFACE IN THE UNIT

Switch off the unit.

Disconnect the unit from the mains supply.

Wait for 5 minutes to allow internal capacitors to discharge.

Select a none used slot at the rear side.

The Interface can be inserted in any free slot 1...4.

See figure 4 - 1.

Unscrew the 2 torx T10 screws and remove the slot cover.

Insert the interface and place the 2 screws back to secure the
interface.
4.4.2 CONNECT INTERFACE

The available connectors on this interface are push wire or
so-called push in connectors.

Relay 1 & 2 and relay 3 & 4 via a 6 pole connector.

Interlock & Enable via a 3 pole connector, see fig. 4 - 2.

Use cables with an internal wiring with a diameter of

0.3 ... 0.5mm
2
and with a sufficient voltage rating for the
voltage of the circuit.

With regards to safety, the connectors are at the level of
Protective Earth.

Connect the mains supply again and check all the safety
covers are installed.

Switch on the unit.

The LED indicated in fig. 4 - 2 will light up.
4.5 UNIT CONFIGURATION

The unit will automatically detect the new inserted interface.

The interface icon will be shown in the display, see fig 4 - 3.
4.6 RELAY CONTACTS & INTERLOCK
fig 4 - 2
All four relay and Interlock/Enable conections are
made via push wire or so-called push-in connectors.
fig 4 - 3
Position of the interface icon in the unit display.
fig 4 - 1
All positions are valid for INT MOD CON.
CON N
Relay 3 & 4
CON K
Interlock /
Enable
LED
CON M
Relay 1 & 2