Dynisco UPR700, Installation And Operation Manual

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18
6. M
OUNTING AND
W
IRING
Please refer to Figure 2 for cutout dimensions and clearance requirements. Locate the two mounting
brackets packed with the instrument and have them available.
1. Remove instrument from case. To accomplish this, spread the two locking tabs located on either
side of the case. The instrument will move forward past the locked position. Grasp the bezel and
slide the instrument from the case. Depending on the options chosen, you may find that one or
two boards appear to be loosely mounted. This patent-pending design allows the instrument to
be removed from the case without having to overcome the friction of all terminals on all boards
at one time. Initially the CPU board and alarm board will be released, followed by the I/O and
digital communication boards.
2. Slide the instrument case into the cutout, being sure that it is right-side-up (terminal 1 at the
top). Attach the panel mounting hardware at diagonally opposite sides of the top and bottom of
the case, tightening the threaded rod until the case is secure against the panel.
3. Carefully slide the instrument back into its case, until the locking tabs have engaged. An audible
click will be heard as each tab engages.
4. Refer to the model number of the instrument to determine the hardware and options included as
part of your unit. Please refer to Section 6.1 for the terminal assignments. Terminals are accessed
by opening the terminal covers from the side with the “OPEN” legend.
NOTE 1:
The UPR700 is equipped with screw terminals, and no connectors are necessary when wiring the
unit
NOTE 2:
When wiring the alarms, wire to the Common and NO (normally open) terminals to maintain a fail-
safe configuration.
Fail-safe denotes a situation where the alarms relay coils are activated in a no-alarm situation. As the
relay coil is energized, terminals that are normally open are closed and can cause completion of a
circuit when used as an interlock. Should the alarm threshold be exceeded, OR should power be
lost to the instrument the contacts will open, and the circuit will be broken. If the alarm is a latching
alarm, it will require an external reset signal to be activated again.
If the alarm is used to provide a contact to an alarm device (light, horn buzzer, etc., when the
threshold is exceeded, wiring should be to the Common and NC (normally closed) terminals.
Activation of the relay coil will cause the contacts to open in a non-alarm situation, and to close if
the threshold is exceeded, or power is interrupted to the instrument. If the alarm is a latching alarm,
it will require an external reset signal to be activated again.