WattMaster WM-WCC3-TGD-01B - Manual (Page 532)

WCC III Technical Guide 12-36
12. WCC III INSTALLATION
The “Old” SAT II Type V-Out Board -
Connection Points
All external “old” SAT II type V-Out board connection points are
single tab ¼-inch Sta-Con connectors.
VIN1 to VIN8 Connection
These analog inputs are set up as 0 to +15 DC Volts inputs. They
should be connected to and mated up with the SAT III controller’s
8 Analog Outputs. These eight inputs need to be connected to the
SAT III V-Out connections for the V-Out mode of operation to
function.
GND Connection
This is an analog ground common connection point for VIN1 to
VIN8 analog inputs. It is important that this “analog” ground is
connected to the Analog Input ground of the SAT III controller.
24 VAC & GND
The “old” SAT II type V-Out board requires a 24 VAC power
supply, which is connected to these terminals. The “old” SAT
II type V-Out board is generally powered by the same 24 VAC
transformer that powers the satellite controller. The GND
connection points must be the same between the “old” SAT II
type V-Out board and the SAT III Controller.
RLY 1 to RLY 8 COM – N.O. Connections
These are the eight “Chip-switch” relay driver contacts on the “old”
SAT II type V-Out board. These are to be used for powering of pilot
duty relays. No more than 24 VAC to be switched by these “Chip-
switches”. There is no load protection device called a varistor on
any of these 8 “Chip-switch” relay driver output connections of
the “old” SAT II type V-Out board. These chip-switches can only
switch AC type voltage, not DC type voltage, with a maximum
at ½ amp current draw for each chip-switch relay driver output
contact. Attempting to switch any current draws of more than 1/2
amps per contact could and will result in damage to the “old” SAT
II type V-Out board and/or to the SAT III controller.
A pre-made control output common jumper wire (PL100867) can
be used to connect all eight of the relay common connections of the
“old” SAT II type V-Out board together.
The “Old” SAT II Type V-Out Board
Installation and Mounting
It is important to mount the “old” SAT II type V-Out board in
a location that is free from extreme high or low temperatures,
moisture, dust, and dirt. Be careful not to damage any of the
electronic components when mounting the “old” SAT II type
V-Out board. Remove the “old” SAT II type V-Out board from
its Snap-Track mount. Using the Snap-Track as a template, mark
the two mounting holes. Drill pilot holes in the enclosure back
panel, and secure the Snap-Track using sheet metal screws. Do
not allow metal shavings to fall onto the “old” SAT II type V-Out
circuit board. Reattach the “old” SAT II type V-Out board into the
Snap-Track.
WCC III V-Out RELAY Board
Sequence (SS5008)
There are two modes of operation for the WCC III V-Out RELAY
board. One is the V-Out mode, and the other is the Binary Output
mode.
The WCC III V-Out RELAY board has eight relays each with
N.O. (Normally Open) contacts. These relay contacts are rated
for 1 Amp at 24 VAC/VDC operation only. This WCC III V-Out
RELAY board connects to the HSS expansion port on the side of
the SAT III controller. The WCC III V-Out RELAY board is an
expansion board that allows for another 8 binary outputs (Relay
Contacts) to be used with the SAT III controller. Up to three of
these WCC III V-Out RELAY boards may be connected to the SAT
III HSS expansion port. Two boards in the Binary Output mode
are supported, and one board in the V-Out mode is supported. One
HSS expansion board will add 10 VA of VA load to the SAT III
power requirement.
These eight Analog Inputs connections must be connected to the
eight Analog Outputs of the SAT III controller in the V-Out mode
of operation. These analog values are not digitally transmitted via
the HSS port on the SAT III to the WCC III V-Out RELAY board
in the V-Out mode.
There is a load protection device called a varistor across each of
the 8 relay output connections of the WCC III V-Out RELAY
board that limit the allowable voltage to no more than 32 volts
AC\DC maximum at 1 amp current draw for each relay output
contact. Attempting to switch any voltage greater than 32 volts
or current draws of more than 1 amp per contact could and will
result in damage to the WCC III V-Out RELAY board and/
or to the SAT III controller.
WCC III V-Out Relay Board