Programmable Inputs; Programmable Outputs - Lectrosonics DM1624 Installation Manual

DM Series Installation Guide

Programmable Inputs

Programmable inputs are provided to enable control
over a variety of parameters. Each input can respond to
either a contact closure or a continuous voltage. The
diagram below shows common connections to the
programmable input pins.
Each programmable input is internally pulled up through
a 100K resistor to +5V, so no external pull up resistors

Programmable Outputs

Programmable outputs are used to indicate either
channel activity or the current state of a programmable
input. Each programmable output is the electrical
equivalent of a contact closure to ground. When a
programmable output is "active", it conducts current to
ground. When the programmable output is "inactive", no
current flows to ground. The maximum usable voltage
for the programmable outputs is 40V, and they will safely
conduct up to 100mADC continuous. The diagram on
the right shows some typical uses for the program-
mable outputs.
LED is on when the programmable output is active
+5VDC (from Programmable I/O
Pins 14, 20, 25)
Programmable Output Pin
6
Pot Connection for Analog Control of Gain
10K Linear Pot
CCW CW
+5V
To Programmable Input Pin
Gnd
Programmable Input Connections
380 Ohms
Relay is on when the programmable output is active
Coil current <100mA
Programmable Output Pin
Gnd (from Programmable I/O
Pins 1, 8, 13)
Programmable Output Connections
are necessary. When using a continuous voltage with
one of the programmable inputs, the Function of the
programmable input must be set to either Analog In
Control or Analog Out Control on the Programmable
Inputs control tab in the GUI. See the Programmable
Input tab in the Control Panel software for setting all
programmable input parameters.
Contact Closure as Programmable Input
To Programmable Input Pin
Gnd
DC Voltage Source as Programmable Input
To Programmable Input Pin
0VDC (Off) to +5VDC (On)
Gnd
It is permissible to run LEDs from the +5VDC pins on
the programmable input connector, as long as the total
LED current for all LEDS on does not exceed 100mA.
Similarly, 5V relay coils may also be run from the
+5VDC pins on the programmable input/output connec-
tor, as long as the total coil current for all relays on does
not exceed 100mA. Note that the diagram shows an
external DC source powering the relay coil. This will be
necessary if coil voltages above 5V are needed.
LED is off when the programmable output is active
+5VDC (from Programmable I/O
Pins 14, 20, 25)
Programmable Output Pin
Gnd (from Programmable I/O
Pins 1, 8, 13)
Relay Coil 1N4001
or equiv.
380 Ohms
External
DC Voltage
Source
(<40VDC)