Delta Elektronika SM15K Series, Product Manual

Page: 11 / 19

ISOLATED CONTACTS SM15K INTERFACES
11 / 19 DELTA ELEKTRONIKA B.V. rev. Nov. 2019

This interface provides 4 changeover relay contacts, an
Enable input and an Interlock (additional to the standard
SM15K Interlock).

The Relay contacts can be controlled & monitored by
Ethernet commands and the web interface. They can also be
linked to several system statuses, like ACF, DCF, etc.

The Interlock and Enable input can be monitored by Ethernet
commands.

Refer to the Ethernet programming manual for commands,
chapter "Command Description", paragraph "Interfaces".

The manual is stored inside every SM15K unit and can be
downloaded via the web interface or from
www.DeltaPowerSupplies.com .
4.6.1 RELAY CONTACTS (CON M & CON N)

Relay contacts (see fig. 4 - 4 & fig. 4 - 6) are as described
below, during power off and when not set. The relay contacts
can handle a maximum contact voltage of 60VDC. The
maximum continuous current is 2A.

Pinning CON M :
o
6 = Relay 1 NC
o
5 = Relay 1 NO
o
4 = Relay 1 Common
o
3 = Relay 2 NC
o
2 = Relay 2 NO
o
1 = Relay 2 Common

Pinning CON N :
o
6 = Relay 3 NC
o
5 = Relay 3 NO
o
4 = Relay 3 Common
o
3 = Relay 4 NC
o
2 = Relay 4 NO
o
1 = Relay 4 Common
4.6.2 INTERLOCK & ENABLE (CON K)

The Interlock input (pin 1) is initially connected to pin 3
(common) (see fig. 4 - 5). Replace the link by two wires and a
switch (for example a cabinet door switch) when its function is
required.

The Enable input (24V, pin 2) impedance is approximately
12kOhm and has a working range of 15V - 30V (see fig. 4 -7).

Connect the common of the external voltage to pin 3.

The Interlock and the Enable can not be used simultaneously
(see fig. 4 - 8).

All interlocks should be valid.

Pinning CON K:
o
3 = Common
o
2 = Enable
o
1 = Interlock
4.7 TROUBLE SHOOTING
4.7.1 INTERLOCK SYMBOL DISPLAYED

Check the unit's standard interlock connection

Check Interlock / enable connection on CON K.
4.8 CALIBRATION

Calibration of the interface is not applicable..
fig 4 - 4
Pinning of CON M and N.
fig 4 - 5
Pinning of CON K.
fig 4 - 6
Pinning of CON M and N.
fig 4 - 7
15 - 30 V Enable.
fig 4 - 8
Interlock contact (door switch).