Spectrum Controls 1769sc-IR6I - Manual (Page 27)

Chapter 3: Installation and Wiring 3-7
User’s Manual Pub. 0300241-01 Rev. A
others aside. This reduces remounting time during drilling and tapping of the next
group.
7) Repeat steps 1 to 6 for any remaining modules.
3.5.3 DIN Rail Mounting
The module can be mounted using the following DIN rails:
•
35 x 7.5 mm (EN 50 022 - 35 x 7.5), or
•
35 x 15 mm (EN 50 022 - 35 x 15).
Before mounting the module on a DIN rail, close the DIN rail latches. Press the DIN rail
mounting area of the module against the DIN rail. The latches will momentarily open
and lock into place.
Section 3.6
Replacing a
Single Module
within a System
The module can be replaced while the system is mounted to a panel (or DIN rail). Follow
these steps in order:
1) Remove power. See important note on page 3-3.
2) On the module to be removed, remove the upper and lower mounting screws
from the module (or open the DIN latches using a flat-blade or phillips-style
screwdriver).
3) Move the bus lever to the right to disconnect (unlock) the bus.
4) On the right-side adjacent module, move its bus lever to the right (unlock) to
disconnect it from the module to be removed.
5) Gently slide the disconnected module forward. If you feel excessive resistance,
check that the module has been disconnected from the bus, and that both
mounting screws have been removed (or DIN latches opened).
Note: It may be necessary to rock the module slightly from front to back to remove it,
or, in a panel-mounted system, to loosen the screws of adjacent modules.
6) Before installing the replacement module, be sure that the bus lever on the
module to be installed and on the right-side adjacent module or end cap are in
the unlocked (fully right) position.
7) Slide the replacement module into the open slot.
8) Connect the modules together by locking (fully left) the bus levers on the
replacement module and the right-side adjacent module.
9) Replace the mounting screws (or snap the module onto the DIN rail).