SYLK™ I/O DEVICES
3
31-00028—02
The device may be mounted in any orientation.
IMPORTANT
Avoid mounting in areas where acid fumes or other
deteriorating vapors can attack the metal parts of
the controller, or in areas where escaping gas or
other explosive vapors are present. See Fig. 1 for
mounting dimensions.
Mount Device
NOTE:
The device may be wired before mounting to a
panel or DIN rail.
Terminal blocks are used to make all wiring connections to
the device. Attach all wiring to the appropriate terminal
blocks (see “Wiring” on page 5).
See Fig. 1 for panel mounting dimensions. See Fig. 2 on
page 3 for DIN rail mounting.
Fig. 1. Device dimensions in in (mm).
Panel Mounting
The device enclosure is constructed of a plastic base plate
and a plastic factory-snap-on cover.
NOTE:
The device is designed so that the cover does not
need to be removed from the base plate for either
mounting or wiring.
The device mounts using four screws inserted through the
corners of the base plate. Fasten securely with four No. 6
or No. 8 machine or sheet metal screws.
The device can be mounted in any orientation. Ventilation
openings are designed into the cover to allow proper heat
dissipation, regardless of the mounting orientation.
DIN Rail Mounting
To mount the SIO12000, SIO4022, or SIO6042 device on a
DIN rail [standard EN50022; 1-3/8 in. x 9/32 in. (7.5 mm x
35 mm)], refer to Fig. 2 and perform the following steps:
1.
Holding the device with its top tilted in towards the
DIN rail, hook the two top tabs on the back of the
device onto the top of the DIN rail.
2.
Push down and in to snap the two bottom flex con-
nectors of the device onto the DIN rail.
IMPORTANT
To remove the device from the DIN rail, perform
the following:
1. Push straight up from the bottom to release the
top tabs.
2. Rotate the top of the device out towards you and
pull the controller down and away from the DIN rail
to release the bottom flex connectors.
Fig. 2. Controller DIN rail mounting
(models SIO12000, SIO4022, and SIO6042).
Power
Before wiring the controller and device, determine the
input and output device requirements for each controller
and device used in the system. Select input and output
devices compatible with the controller, device, and the
application. Consider the operating range, wiring
requirements, and the environment conditions when
selecting input/output devices. When selecting actuators
for modulating applications consider using floating
control. In direct digital control applications, floating
actuators will generally provide control action equal to or
better than an analog input actuator for lower cost.
Determine the location of controllers, sensors, actuators
and other input/output devices and create wiring diagrams.
The application engineer must review the control job
requirements. This includes the sequences of operation
for the controller, and for the system as a whole. Usually,
there are variables that must be passed between
controllers that are required for optimum system-wide
operation. Typical examples are the TOD, Occ/Unocc
signal, the outdoor air temperature, the demand limit
control signal, and the smoke control mode signal.
It is important to understand these interrelationships
early in the job engineering process, to ensure proper
implementation when configuring the controllers.
Power Budget
A power budget must be calculated for each device to
determine the required transformer size for proper
operation. A power budget is simply the summing of the
maximum power draw ratings (in VA) of all the devices to
be controlled. This includes the controller itself and any
devices powered from the controller, such as equipment
actuators (ML6161 or other motors) and various
contactors and transducers.
M35144
NOTE: DEVICE CAN BE MOUNTED IN ANY ORIENTATION.
3/16 (4.5) PANEL MOUNTING HOLE (4X)
1 1 1 1 1 1 1 2 2 2 2 2
3 4 5 6 7 8 9 0 1 2 3 4
1 1
1 2 3 4 5 6 7 8 9 0 1 2
DEPTH IS
2-1/4 (57)
4-13/16 (122)
4-1/8 (105)
6-1/4
(159)
5-7/8
(149)
DIN RAIL
TOP TABS
BOTTOM FLEX
CONNECTORS
M16815
