50
Controlling the UDMR from external devices
(control input terminals)
You can control the UDMR from external devices using the
control terminals on the rear panel of the unit.
This section explains how to connect external devices to the
UDMR and how to configure the UDMR accordingly.
Definition of "no-voltage NO
contacts"
No-voltage "normally-open" (NO) contacts (also known as
"Form A" or "make" contacts) are contacts which can be
activated by connecting two wires to the control input terminal
to trigger an intentional short circuit. Capable of forming a
simple activation system using only a switch without the need
for a power supply, these versatile contacts can easily be used
in a variety of applications.
By using on/off signals from an externally-connected
open-collector circuit no-voltage NO contact, it is possible to
control the UDMR's playback.
Connecting the UDMR to an infrared sensor and an external
activating terminal such as a switch, relay or timer enables you
to use the unit in a broader range of situations.
Installation can also be simplified by setting up energized-side
contacts on the "hot" side and connecting the ground side to
the UDMR's common (COM) terminal.
Refer to 'Control terminal specifications' on page 98 for
details.
The UDMR's power supply cannot be turned on or off via the
control terminals.
The UDMR's two common (COM) terminals are internally
connected, so they will both function regardless of which one
you connect to. When connecting the control terminals of
multiple UDMR units using a single NO contact, please
connect one of the common terminals from each unit to each
other.
The accessory Euroblock connectors may pose a choking
hazard if swallowed so be sure to keep them out of reach of
children.
Control input playback modes
The UDMR features two control input modes -- direct playback
(p.51) and binary playback (p.55).
These playback modes can be configured to the following
eight submodes, which can then be selected to suit the type of
usage.
Direct playback (standard)
Direct playback (pre-priority)
Direct playback (post-priority)
Direct playback (sequential)
Binary playback (level: off; edge: off)
Binary playback (level: on; edge: off)
Binary playback (level: off; edge: on)
Binary playback (level: on; edge: on)
The playback modes cannot be performed simultaneously.
Control input playback submodes
When a new control signal is
input during playback
When control
signals are input
continuously
Direct playback
Standard
Playback priority is given to
lower terminal numbers.
If a control signal is input from a
terminal number lower than that
of the phrase currently being
played, the playback is
suspended in favor of the
subsequent designated phrase.
If the terminal number is the
same or larger, the input is
voided.
Repeat
Pre-
priority
Voided
Repeat playback
Post-
priority
Current phrase playback
suspended & subsequent
designated phrase playback
commenced.
Repeat
Sequential
Phrases are memorized
(programmed)
& played back in order after
current phrase ends.
Up to 100 phrases can be
programmed.
Single playback
Binary playback
Level: off
Edge: off
Voided
Single playback
Level: on
Edge: off
Voided
Repeat playback
Level: off
Edge: on
Current phrase playback
suspended & subsequent
designated phrase playback
commenced.
Single playback
Level: on
Edge: on
Current phrase playback
suspended & subsequent
designated phrase playback
commenced.
Repeat playback
CAUTION
CAUTION
CAUTION
CAUTION
