Delta Elektronika SM15K Series, Product Manual

Page: 16 / 19

DIGITAL (USER) I/O SM15K INTERFACES
16 / 19 DELTA ELEKTRONIKA B.V. rev. Nov. 2019
6.6 INPUTS AND OUTPUTS

This interface provides 8 user inputs and 8 user outputs.

These can be controlled / monitored by Ethernet commands
or can be used to interact with the Sequencer to make the
power supply act like a Power PLC.

Refer to the Delta Elektronika programming manual for
Ethernet (section 5) & Sequencer (section 6) for commands.

The manual is stored inside every SM15K unit and can be
downloaded via the web interface. It can also be downloaded
from
www.DeltaPowerSupplies.com .
6.6.1 USER INPUTS (CONNECTOR CON F):

Unconnected inputs are LOW. To make an input HIGH, apply
the +5V of pin 9 or pin 14. Also an external voltage can be
used to control the inputs. Make sure the common of the
external source is connected to pin 10 or pin 15. The user
inputs have a working range of 2V - 30V, use a common zero
and have an impedance of approximately 22kOhms. The
maximum load of the +5V is 100mA.

See figure 6 - 4 and table 6 - 1 for the pinning of CON F.
6.6.2 USER OUTPUTS (CONNECTOR CON G):

The 8 user outputs are Open Drain with common zero.

When an output is TRUE, it is pulled down to 0V. Otherwise
the output is open. The output impedance is 7 Ohm,
maximum rating is 30V / 200mA.

See figure 6 - 4 and table 6 - 2 for the pinning of CON G.
6.7 CALIBRATION

Calibration of the interface is not applicable.
fig 6 - 4
Pinning of connector CON F and G.
1 = user input A
2 = user input B
3 = user input C
4 = user input D
5 = user input E
6 = user input F
7 = user input G
8 = user input H
9 = +5V
10 = 0V
11 = n.c.
12 = n.c.
13 = n.c.
14 = +5V
15 = 0V
table 6 - 1
Pinning of connector CON F.
1 = user output A
2 = user output B
3 = user output C
4 = user output D
5 = user output E
6 = user output F
7 = user output G
8 = user output H
9 = +5V
10 = 0V
11 = n.c.
12 = n.c.
13 = n.c.
14 = +5V
15 = 0V
table 6 - 2
Pinning of connector CON G.