1. General Instructions
WCC III
1. General Instructions
T ABLE OF CONTENTS
SECTION 1: GENERAL
INSTRUCTIONS
WCC III FEATURES AND MAINTENANCE ....1-1
“Where To Find” Features .....................................................1-1
WCC III Routine Maintenance ..............................................1-1
WCC III SOFTWARE .....................................1-2
WCC III Installation Software CD Information ......................1-2
WCC III Software Version List ..............................................1-2
DATA ENTRY SEQUENCE ............................1-3
Recommended Data Entry Procedure..................................1-3
ANALOG INPUTS .........................................1-3
BINARY INPUTS ..........................................1-4
POINT ADDRESSES .....................................1-8
Point Addresses Table ..........................................................1-8
DATA REGISTERS ........................................ 1-9
Time Clock ............................................................................1-9
EA Driver ............................................................................1-10
Dual Limit............................................................................1-10
ALARMS.....................................................1-11
Alarm Call-Out ....................................................................1-11
Analog Alarm Limit..............................................................1-11
Run Time Alarm ..................................................................1-12
Satellite Fail Alarm ..............................................................1-12
ANALOG OUTPUTS .....................................1-6
BINARY OUTPUTS ......................................1-7
1. GENERAL INSTRUCTIONS
WCC III F eatures and Maintenance
SECTION 1:
GENERAL INSTRUCTIONS
____________________________________________________
“Where T o Find” Features
The following is a list of commonly used WCC III features and the
screens you should access to use them.
FEATURES SCREEN
Alarms
“ E-mail-Out-On-Alarm”
Call “All” or “Either”
E-mail Address
Input E-mail Address
Clear ( Acknowledge) Alarms Alarm Summary
Set Alarm Limits
Analog Inputs
Run Time
Global Analog Values
Global Binary Values
View Alarms
All Alarms
Global Alarms
Demand Limiting Shed/Restore
Monitor Analog Inputs
(Temperature/Pressure etc.)
Find Highest or Lowest Building
Temp
Find A verage Building Temp
Present V alue
Trend Logs
Monitor Binary Inputs (air fl ow switch etc.)
Present V alue
Trend Log.
Password Entry
Assign Operator Access Codes
“ Sign-On”
“ Sign-Off”.
Schedules
Change Schedules Permanently.
Holiday Schedules
Setpoints
Change Setpoints - Satellite
Change Setpoints - TUC
Sequence Satellites After a Power Outage Satellite Summary
Time and Date Modifi cations System Parameters
System Parameters
Analog Input Screen
Trend Logs
Global Analog
Global Binary
Alarm Summary
Global Summary
Global Analog-Sort
Global Analog-A vg
Analog Input Summary
Analog Trend
Logic Switches
Change of State
Sys Par/Oper Codes
System Parameters
Secure Screen
Week Schedules
Holiday & Week Sch
Control Outputs
SCUSCR
WCC III Routine Maintenance
The following maintenance items should be performed on a regular
basis:
Service Item As
Req’d
Blow out
keyboard
Blow out
MCD assy
Check all
external cable
connections
Test/Verify
U.P.S.
operation
Clean display
screen
Dim display
screen
Clean fl oppy
drive
Test fl oppy
drive
Test MCD
memory
Test display
monitor
Test modem
(system’s
ability to
e-mail-out-onalarm)
Delete “backup” (*.bak)
fi les
Make “backup” copies of
program
Check disks
for available
space to
prevent
overfi lling the
disk
Check loop
connection on
rear of MCD
Every WkEvery MoEvery
3 Mo
XX
XX
XX
XX
*X
XX
XX
XX
XX
XX
Every
6 Mo
X
X
X
X
X
Every
12 Mo
WCC III Technical Guide
1-1
1. GENERAL INSTRUCTIONS
WCC III Software
Service Item As
Req’d
Save satellite
data to disk
Test satellites’
local-set
capability
Test satellites’
battery (or
capacitor)
Check/Reset
trend logs
View/Clear all
alarms
Cycle power
to MCD to
verify correct
system re-start
after a power
outage
Every WkEvery MoEvery
3 Mo
XX
XX
XX
Every
X
6 Mo
Every
12 Mo
X
X
* Set the screen’s intensity to the lowest setting when the system
is not being used.
WCC III Installation Software CD
Information
There are three available CD-ROMs available from WattMaster
Controls, Inc. - either from the factory or downloadable from the
wcc-controls.com website. They are as follows:
WattMaster Part # DM1WC011-01X*
This is the contractor installation CD for the main WCC III System.
This CD installs the following programs:
WCC3.EXE(SS5021), SCUSCR.EXE(SS5026),
WCCUTILITY.EXE(SS5023), TENANTOVERRIDE.
EXE(SS5024),TENANTREPORT.EXE(SS5025),
WCC3TRENDLOG.EXE(SS5028), WGCC3.
EXE(SS5029),WCC3DOWNLOAD.EXE(SS5030),
WCC3GUEST.EXE(SS5022).
WattMaster Part # DM1WC012-01X*
This is the end-user installation CD for “View Only” versions of
the WCC III system. This CD only installs the following programs:
WCC3GUEST .EXE(SS5022) and SCUSCRLtd.EXE(SS5027).
WattMaster Part # DM1WC013-01X*
This is the end-user installation CD for the Tenant Override
program. This CD only installs the following programs:
TENANTOVERRIDE.EXE(SS5024).
* = Where “X” is the software version A to Z.
WCC III Software Version List
The WCC III software is updated periodically to include more
features. The two fi les that change as the WCC III system is
upgraded are the WCC III fi le and the BACKTASK fi le. When
a WCC III fi le is installed in a system, the BACKTASK fi le may
need to be changed also. The Backtask software is located in the
MCD.
NOTE: Y ou can see the present WCC III and BA CKT ASK
version used by the system by looking at the lower left hand
corner of the Main Menu Screen.
1-2
WCC III Technical Guide
1. GENERAL INSTRUCTIONS
8
7
SATADDRESS
2
1
4
8
A3 WIRE ROOM SENSOR WILL NOT
REQUIREA LOAD RESISTORWHEN SET
FORA 1 VOLTINPUT.
WattMasterControls Inc.
BINARY
INPUTS
BINARY
INPUTS
L8
ON OFF
128
32
16
64
L4
L3
L2
L1
L6
L5
L7
L11
L12
ON OFF
L10
L9
ON OFF
L15
L16
L14
L13
CH
4
3
5
6
2
1
LOCAL SET
STATUS 2
STATUS 3
STATUS 1
HSS XMIT
LOCALSET
LOCALSET DISABLE
BATTON/ OFF
PULSE INPUT
OPTION 1
TEST
OPTION 3
OPTION 2
ON OFF
STATUS
HSS REC
SATXMIT
SATREC
ANALOG INPUT
JUMPER SELECTION
A2 WIRE ROOM SENSOR WILL REQUIRE
A300 OHM LOAD RESISTOR WHEN SET
FORA 1 VOLTINPUT.
A4 TO 20 mASENSOR WILL REQUIRE A
50OHM LOAD RESISTOR WHEN SET FOR
A1 VOLTINPUT, OR A 250 OHM LOAD
RESISTORWHEN SET FOR A5 VOLT INPUT.
CURRENT
INPUT
THERMISTOR
INPUT
0-1V
0-5V
0- 10V
THERM
0-1V
0-5V
0- 10V
THERM
0 TO10V
INPUT
0TO5V
INPUT
0TO1V
INPUT
0- 10V
0-1V
0-5V
0- 10V
THERM
0-1V
0-5V
THERM
0-1V
0-5V
0- 10V
THERM
PROGRAMMABLECONTROLLER
SAT III
H
C
COM
CHANNEL
2134
2134
567
8
5678
V
OUT
GND
L
O
A
D
+V
ATI
Jumper
Data Entry Sequence and Analog Inputs
Recommended Data Entry Procedure
When setting up an WCC III system, the screens can be
programmed in any order. However, you may fi nd it easier to
follow this sequence:
1. Make Back-Up Copies of the Program/Data Files.
2. System Parameter Screen
3. Satellite Summary Screen
4. On/Off Units Messages Screen / Alarm Message
Screen —Enter the On/Off messages, units of
measure messages, and alarm messages, and then
print a copy of the messages. Keep a copy of
these messages handy while entering data on the
remaining screens.
5. W eek Schedule Screens
6. Holiday Screen
7. Analog Input Screens
8. Logic Switch Screens
9. Control Output Screens
10. TUC Screens
11. Analog Output Screens
Analog Inputs
An analog input is a numerical value (signal) sent from the SAT
III controller to allow monitoring of space temperatures, duct
pressures etc. The SAT III controller can accept 8 analog inputs
which are named, A1-A8. (NOTE: A1-A8 may be either analog
or binary inputs.) On certain screens (such as Global Analog
Screens), you must indicate the satellite controller number along
with the channel on the satellite controller. For example, 12A2
means satellite controller #12 analog input number 2.
The analog inputs are usually wired to the “+V” and “A TI” (Actual
Temperature In) terminals on the SAT III controller (three wire
sensors are wired to the “GND” terminal also.) The “+V” terminal
on channels 1-7 are a 12 VDC power source. The “+V” terminal
on channel 8 provides either 12 VDC or 24 VDC depending on
the position of the jumper under the cover near channel 8. To get
12 VDC from the “+V” terminal on channel 8, the jumper must
connect the 12 volt and center terminals. To get 24 VDC, the
jumper must connect the 24 volt and center terminals.
A thermistor and 20 mA sensor can be used on the SAT III
controller. You choose the type of sensor to be used by selecting
the appropriate jumper (located under the SAT III cover). The
choices are Thermistor, 0-10 V, 0-5 V, 0-1 V and Jumper A1 used
J01, A2 used J02 and so on up to A8 uses J08.
12. Analog Global Screens
13. Binary Global Screens
14. Optimal Start Screens
15. Shed/Restore Screens
16. Duty Cycle Screens
17. Proportional Reset Screens
18. Energy Consumption Screens
19. Trend Log Screens
20. Save Satellite Data to Disk
21. Make Back-Up Copies of the Program/Data Files.
WCC III Technical Guide
(Under Cover)
1-3
1. GENERAL INSTRUCTIONS
Binary Inputs
Binary Inputs
A binary input is an On/Off (dry contact closure) signal sent to
the SAT III controller to allow monitoring of air fl ow switches,
switch settings, etc. The SAT III controller comes standard with
16 small switches on its front panel labeled, L1-L16 which are in
effect manually controlled binary inputs. The WCC III monitors
the On/Off status of these switches and can control and/or alarm
based on the position of these switches. The binary input board(s)
allow the manual dip switches to be replaced with a terminal strip
which accepts wiring from remote mounted binary input devices.
The SAT III controller has two sets of 8 small switches on its front
cover labeled L1-L16. Switches L1-L8 are housed together in
one module, and switches L9-L16 are housed together in another
module. One module of switches is removed for each binary input
board and replaced with a ribbon cable which connects the binary
input board to the SAT III controller. The binary devices to be
monitored are then wired to the terminal strip of the binary input
board. The binary input board requires a 24 VAC power supply.
The SAT III can also accept two HSS Binary Input Boards.
1-4
WCC III Technical Guide
1. GENERAL INSTRUCTIONS
8
7
SAT ADDRESS
2
1
4
8
A3 WIR E ROOMSENS OR WILL NOT
REQUIREA LOAD RESISTOR WHENSET
FORA 1 VOLT I NPUT.
WattMasterControlsInc.
BINARY
INPUTS
BINARY
INPUTS
L8
ON OFF
128
32
16
64
L4
L3
L2
L1
L6
L5
L7
L11
L12
ON OFF
L10
L9
ON OFF
L15
L16
L14
L13
CH
4
3
5
6
2
1
LOCALSET
STATUS 2
STATUS 3
STATUS 1
HSS XMI T
LOCALSET
LOCALSET DISABLE
BATTON/ OFF
PULSEINPUT
OPTION 1
TEST
OPTION 3
OPTION 2
ON OFF
STATUS
HSS RE C
SATXMIT
SATREC
ANALOGI NPUT
JUMPER SELECTION
A2 WIR E ROOMSENSO R WI LL REQUIRE
A300 OHM LOAD RESI STOR WHEN SET
FORA 1 VOLT I NPUT.
A4 TO 20 mASENSOR WILLREQUIRE A
50OHM LOADRES I STOR WHENSET FOR
A1 VOLT INPUT, OR A 250 OHMLOAD
RESISTORWHENSET FORA 5VOLT INPUT.
CURRENT
INPUT
THERMISTOR
INPUT
0-1V
0-5V
0-10V
THERM
0-1V
0-5V
0-10V
THERM
0TO 10V
INPUT
0TO5V
INPUT
0TO1V
INPUT
0-10V
0-1V
0-5V
0-10V
THERM
0-1V
0-5V
THERM
0-1V
0-5V
0-10V
THERM
PROGRAMMAB L E CONT R OL LE R
SAT II I
H
C
COM
CHANNEL
2134
2134
567
8
5678
V
OUT
GND
L
O
A
D
+V
ATI
10A250VAC~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
10A250VAC~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
10A250VAC~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
10A250VAC~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
EACHCONTACT
ISRATEDFOR
24VACOR VDC
@.5AMPMAX
0-15VDC
OUTPUT
MINL OAD
IS1KOHM
RESISTIVE
VDCONLY
WCC3BI NARY IN W/ T I ME DELAY
WATTMASTER CONTROLS, I NC
YS102072REV2
24 VAC 12 0VAC
120VACWIRING
BY OTHERS
TO OTHER
SAT III ORTO
WCCIII - MCD
CONNECTION FROM SAT I II TO BI NARY INPUT BOARD
USI NG THE "NEW" HSS CABLE CONNECT IO N MET HOD
HSS CABLE - ORDER STANDARD LENGTHS OF 1 F OOT, 1
1
2
FEET, 3 FEET, 25 FEET, 40 FEET, 80 FEET
DRY INPUT CONTACT S ONLY
24VAC
GND
TO OTHER
SAT III ORTO
WCCIII - MCD
WI R E " T" T O " T "
"R" TO"R"
"SHD" TO"SHD"
TWOBINARYINPUTBOARDSMAYBEWIREDTO
THE SAT II I CONTROLLER USING THI S METHOD.
CONNECT THE FI RST ONE TO THE SAT II I HSS
PORT, AND THE SECOND ONE TO THE FI RS T
BINARY INPUT BOARDS 2ND HSS PORT.
BINAR Y INPUT BOARD GETS POWER FROM THE HS S CABLE
SEE MANUAL FOR DI P
SWITCH SETTINGS
Binary Inputs
WCC III Technical Guide
1-5
1. GENERAL INSTRUCTIONS
Analog Outputs
Analog Outputs
An analog output is a variable DC voltage signal sent from the
satellite controller used for proportional control of devices with
modulating actuators. The analog outputs are wired to the “ V-Out”
and “ Gnd” terminals on the SAT III controller and are named P1P8. The P stands for Proportional Output.
The SAT III controller has the capability of providing 8 analog
output signals which have a maximum range of 0-15 VDC.
V-OUT CONNECTIONS
0-15VDC
OUTPUT
MINLOAD
IS1K OHM
RESISTIVE
VDCONLY
EACHCONTACT
ISRATED FOR
24VACOR VDC
@.5 AMP MAX
5678
2134
CHANNEL
2134
567
VDE
VDE
SA
SA
5A30VDC
5A30VDC
10A250VAC~
10A250VAC~
CHINA
CHINA
DC24V
DC24V
G5Q-1A4
OMRON
G5Q-1A4
OMRON
OMRON
8
VDE
VDE
SA
SA
5A30VDC
5A30VDC
10A250VAC~
10A250VAC~
CHINA
CHINA
DC24V
DC24V
G5Q-1A4
OMRON
G5Q-1A4
Each analog output has a limit of 15 mA. The total current output
of all 8 analog outputs must be kept under 115 mA.
The SAT III controller comes standard with 8 analog outputs.
+V
ATI
GND
OUT
COM
L
O
A
D
V
H
C
ON OFF
ON OFF
ON OFF
ON OFF
BATTON/ OFF
PULSE INPUT
OPTION 3
OPTION 2
OPTION 1
LOCAL SETDISABLE
LOCAL SET
TEST
L16
L15
L14
BINARY
L13
L12
INPUTS
L11
L10
L9
L8
L7
L6
BINARY
L5
L4
INPUTS
L3
L2
L1
128
64
32
16
8
4
2
SATADDRESS
1
STATUS
SATREC
SATXMIT
HSS REC
HSS XMIT
LOCAL SET
STATUS 1
STATUS 2
STATUS 3
1
2
3
4
5
6
7
8
CH
SAT III
PROGRAMMABLE CONTROLLER
ANALOG INPUT
JUMPER SELECTION
THERM
0TO1V
0- 10V
0-5V
INPUT
0-1V
THERM
0TO5V
0- 10V
0-5V
INPUT
0-1V
THERM
0 TO 10V
0- 10V
INPUT
0-5V
0-1V
THERM
0- 10V
THERMISTOR
0-5V
INPUT
0-1V
THERM
0- 10V
CURRENT
0-5V
INPUT
0-1V
A4 TO 20 mA SENSOR WILLREQUIRE A
50OHM LOAD RESISTOR WHEN SET FOR
A1 VOLT INPUT,OR A 250 OHM LOAD
RESISTORWHEN SET FOR A 5 VOLTINPUT.
A2 WIRE ROOM SENSOR WILL REQUIRE
A300 OHM LOAD RESISTOR WHEN SET
FORA 1 VOLTINPUT.
A3 WIRE ROOM SENSOR WILL NOT
REQUIREA LOAD RESISTOR WHEN SET
FORA 1 VOLTINPUT.
WattMasterControls Inc.
1-6
WCC III Technical Guide
1. GENERAL INSTRUCTIONS
Binary Outputs
Binary Outputs
A binary output on the SAT III controller is the electronic equivalent
of a relay contact which is used to complete a circuit to activate
on/off devices such as relays, 2-position valves, etc. The binary
output contacts can be used to complete a 24 volt DC circuit or
24 volt AC circuit at 1.0 amp maximum load. The binary output
terminals are labeled H, COM, and C.
The SAT III controller is capable of providing 16 binary (on/off)
outputs.
ON OFF
BATTON/ OFF
PULSE INPUT
OPTION 3
OPTION 2
OPTION 1
LOCAL SET DISABLE
LOCAL SET
TEST
ON OFF
L16
L15
L14
L13
L12
L11
L10
L9
ON OFF
L8
L7
L6
L5
L4
L3
L2
L1
ON OFF
128
64
32
16
8
4
2
1
The terminals for the binary outputs are found at the lower left hand
corner of the SAT III controller. The “COM” to “H” contacts are
referred to as K1h-K8h. The “COM” to “C” contacts are referred
to as K1c-K8c.
The SAT III can also accept up to three WCC III V-Out Relay
Boards.
STATUS
BINARY
INPUTS
BINARY
INPUTS
SATADDRESS
SAT REC
SAT XMIT
HSS REC
HSS XMIT
LOCAL SET
STATUS 1
STATUS 2
STATUS 3
CH
1
2
3
4
5
6
7
8
SAT III
PROGRAMMABLE CONTROLLER
ANALOG INPUT
JUMPER SELECTION
THERM
0TO1V
0 - 10V
0-5V
INPUT
0-1V
THERM
0TO5V
0 - 10V
0-5V
INPUT
0-1V
THERM
0 TO 10V
0 - 10V
INPUT
0-5V
0-1V
THERM
0 - 10V
THERMISTOR
0-5V
INPUT
0-1V
THERM
0 - 10V
CURRENT
0-5V
INPUT
0-1V
A4 TO 20 mA SENSOR WILL REQUIRE A
50 OHM LOAD RESISTORWHEN SET FOR
A1 VOLT INPUT, ORA 250 OHM LOAD
RESISTORWHEN SET FOR A 5 VOLTINPUT.
A2 WIRE ROOM SENSOR WILL REQUIRE
A300 OHM LOAD RESISTOR WHEN SET
FORA 1 VOLT INPUT.
A3 WIRE ROOM SENSOR WILL NOT
REQUIREA LOAD RESISTOR WHEN SET
FORA 1 VOLT INPUT.
WattMaster Controls Inc.
WCC III Technical Guide
1-7
1. GENERAL INSTRUCTIONS
Point Addresses
Point Addresses
A Point Address uniquely identifi es a point within the WCC
III system. All point addresses have an associated “analog” or
“binary” value. The term “analog” simply means a value which
is represented by a number (such as room temperature, duct static
pressure, etc.). The term “binary” means the value is represented
by one of two conditions, ON or OFF. An input is a signal sent
to the WCC III system, and an output is sent from the WCC III
system. Therefore, room temperature is an analog input, fan status
is a binary input, and controlling a fan relay is a binary output.
In addition to the inputs and outputs that are wired to the SAT III
controllers, there are several software point addresses within the
system. For example, the WCC III system has 128 week schedules.
This means that separate day/night schedules can be assigned to
128 different areas of the building.
For example, assume that you have three different areas in a
building that have different schedules as shown in the following
table.
Area Occupied Time
W eek Schedule #1 1st Floor West 8:00 am - 5:00 pm, M-F
W eek Schedule #2 1st Floor East 7:00 am - 7:00 pm, M-F
W eek Schedule #3 2nd Floor 9:00 am - 4:00 pm, M-Th
Week Schedule #1 is named W1, and the value of W1 will be On
between 8:00 am and 5:00 pm, Monday through Friday, etc.
The Name column in the table that follows is the name that you
should use when specifying a point address to the system. The “n”
is where a “point number” for the point address is to be entered.
Table of Point Addresses
Name Description Value
RnB Data Registers (b) Analog
TnR Trend Logging Run T ime Analog
TnC Trend Logging Change of State None
TnA Trend Logging Analog Trend None
TnP Trend Logging Analog Peak None
Ln Logical Input On/Off
Wn W eek Schedules On/Off
Sn Optimal Starts On/Off
GBn Binary Globals On/Off
GAn Analog Globals Analog
On Binary Output On/Off
Constant Point Addresses
The following list shows several point addresses within the
system that are always available for use on many of the data input
screens.
Name Description Associated Data Type
0 Logical Zero Always Off
1 Logical One Always On
//// Logical Null Ignored
. . . . Logical Off Always Off/Not Used
NOTE: When a point option is not required, replace the
default value (/ / / /) with either a zero (0) or dot (. . . .)
to force the system to realize that the option is always
OFF. If the slashes are not replaced, the system will
ignore that input and the system can, in rare cases, see
the slashes as being ON.
Name Description Value
Cn Comparator (See analog input
screen binary setpoint)
An Analog Inputs Analog
Pn Analog Outputs Analog
KnH Control Outputs
(H Contacts)
KnC Control Outputs
(C Contacts)
RnA Data Registers (a) Analog
1-8
On/Off
On/Off
On/Off
Name Description
Analog 0 Initiates a 0 (zero) value
TIME Current Time (in HH:MM format)
TIMEB Current Time (in minutes-since-midnight format)
NEWSEC New Second
NEWMIN New Minute
NEWHR New Hour
NEWDA Y New Day
NEWMON New Month
WCC III Technical Guide
1. GENERAL INSTRUCTIONS
Data Registers
Time & TimeB
These logical addresses are the actual time on HH:MM (TIME) and
minutes-since-midnight (TIMEB) formats. They are considered
analog values and have value ranges of 0000 to 2359 (TIME), and
0000 to 1439 (TIMEB).
Typical application of these logical addresses includes use in
the Dual Limit mode, allowing such modes of control as “OnBetween-Times” and “Off-Between-Times.”
NEWSEC, NEWMIN, NEWHR, NEWDAY, & NEWMON
These logical addresses are considered binary values and are based
on real-time. They have a pulse-type nature in that each of these
addresses has a value of one (or ON) for one second after the
occurrence of the specifi ed event. After the one second ON period
has elapsed, the value returns to zero (or OFF).
These addresses have several uses throughout the system. One
example would be the generation of a variable duty cycle output.
When used in conjunction with the separate “Minimum ON/OFF”
timers, these addresses can achieve cycles of from one second to
several days with a wide range of cycles.
Examples of “point addresses” within the system:
Name Description
GA12 Global Analog #12
135A5 Satellite #135, Analog Input #5
A5 Analog Input #5, Current Satellite
W12 W eek Schedule #12
S27 Optimal Start #27
C1 Setpoint Comparator on Analog Input #1
K1h
14P3
When K1h is ON, the relay within the satellite
controller which connects the electrical path
between the “H” and “COM” terminals on
channel 1 of the satellite controller is closed.
When K1h is OFF , the circuit is open.
Satellite #14, Analog Output #3.
Data Registers
The WCC III system has some capabilities built into the software
that are very helpful, and you should be aware of them. There is
a Data Register associated with each of the H/C Control Output
Screens. A H/C Control Output Screen allows the user to tell
the satellite controller when to open and close the binary output
contacts. A H/C Control Output Screen can be a Time Clock, EA
Driver, or Dual Limit Mode Scr een.
Time Clock
When the H/C Control contact on the satellite controller is
controlled by a Time Clock Screen, the contact opens and closes
based on time only. For example, a T ime Clock Scr een can be used
to run a water circulating pump from 8:00 am to 5:00 pm, Monday
through Friday. Each Time Clock Screen has a Data Register
associated with it.
The Data Register is an analog value which is the time in seconds
since the satellite controller binary output contact closed. Assume
the water circulating pump is controlled by satellite controller
contact K1h. That is to say, the “COM” to “H” contact on channel
1 of the satellite controller closes to complete a 24 VAC signal to
run the pump.
The Data Register for a Time Clock Screen is named RnA or RnB.
R stands for data register, n refers to channel 1-8 of the satellite
controller, A means the “COM” to “H” contact, and B means the
“COM” to “C” contact. Therefore, the Data Register for contact
K1h is R1A. As contact K1h closes, the Data Register for contact
Klh (R1A) starts recording time in seconds. That is to say , the value
of R1A is the time in seconds since contact K1h closed.
RnA = Time in seconds since COM to H contact closed
(9999 sec max)
RnB = Time in seconds since COM to C contact closed
(9999 sec max)
The Data Register for a Time Clock Screen might be used to
start one piece of equipment after another has been started. For
example, assume we want to start an air handler two minutes after
the water circulating pump starts. The pump would be controlled
by a Time Clock Scr een as mentioned above. The air handler would
be controlled using a Dual Limit Screen. The analog input value
for the Dual Limit Screen would be R1A, which is time in seconds
since the pump started. The Dual Limit Screen is set up to close the
contact for the air handler when the value of R1A is between 120
seconds and infi nity.
WCC III Technical Guide
The data register will also record time in negative seconds. When
the contact opens, the data register value will begin counting -1,
-2, etc.
1-9
1. GENERAL INSTRUCTIONS
Data Registers
EA Driver
The EA Driver Mode is “3-point fl oating” control. For example,
assume that the H/C control outputs on channel 2 of the satellite
controller are used to control a VAV box using the EA Driver
Mode. When the space needs heat, the “COM” to “H” contacts on
the satellite controller will close to drive the damper in the VAV
box to the closed position. When the space needs cooling, the
“COM” to “C” contact on the satellite controller will close to open
the damper in the VA V box.
There are two Data Registers associated with an EA Driver Screen.
The value of the fi rst Data Register is equal to the setpoint entered
on the EA Driver Screen and is referred to as “RnA.” The value
of the second Data Register is equal to the difference between the
setpoint and the actual temperature and is referred to as “RnB.”
“R” stands for data register, and “n” refers to channel 1-8 of the
satellite controller.
RnA = Setpoint
RnB = Difference between Setpoint and Measured Value (error)
For example, assume that the setpoint for the room in question
is 72 °F, and the actual temperature is 70 °F. The value of Data
Register R2A (setpoint) is 72 °F, and the value of Data Register
R2B (error) is -2 °F, since the actual space temperature is 2 °F
below the setpoint.
The Data Register could be used to turn on a second stage of heat
whenever the space temperature falls 2 °F below setpoint. Assume
that the second stage of heat is a heating coil which is energized
when satellite controller contact K3h is closed. A Dual Limit Scr een
is used to control contact K3h. Data Register R2B is entered as
the analog input value for the Dual Limit Screen. When the value
of R2B is -2 or less (the space temperature is at least 2 °F below
setpoint), contact K3h closes to turn on the second stage of heat.
The Data Register for a Dual Limit Screen is named “RnA” or
RnB.” “R” stands for data register, “n” refers to channel 1-8 of the
satellite controller, “A” means the “COM” to “H” contact, and “B”
means the “COM” to “C” contact. Therefore, the Data Register for
contact Klh is R1A.
RnA = Difference between Setpoint and Measured Value
(COM to H)
RnB = Difference between Setpoint and Measured Value
(COM to C)
The Dual Limit Scr een has two setpoints, the high limit and the low
limit. Since the Data Register is the difference between the setpoint
and the actual temperature, you have to “tell” the system what you
are considering the setpoint to be. Therefore, the Data Register is
measured from either the “Midpoint” or “Nearest Limit” of the
setpoints, depending on how the Dual Limit Screen is set up.
For example, assume that a Dual Limit Screen is used to control a
heat pump compressor to have the compressor off if the space is
between 70 and 74 °F . If the space temperature is below 70 °F, the
compressor will be on for heating, and if the space temperature is
above 74 °F, the compressor will be on for cooling. Assume the
actual space temperature is 76 °F .
The Data Register can be measured from either the “Midpoint”
or the “Nearest Limit.” If the Data Register is measured from the
“Midpoint,” the value of the Data is 4 °F .
Low Limit High Limit Actual T emperature
70 72 74 76
4 Deg
Midpoint
Data Register
Dual Limit
When the H/C control output contact on the satellite controller
is controlled by a Dual Limit Screen, the contact opens and
closes based on how the analog input value compares to a pair
of setpoints. There is one Data Register for each contact on the
satellite controller which is controlled by a Dual Limit Screen. The
value of the Data Register is the difference between the setpoint
and the actual temperature.
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Difference between actual temperature and the “Midpoint” of the
setpoints = 4 °F, and therefore, the value of the Data Register is 4
°F .
If the Data Register is measured from the nearest limit, the value of
the Data Register is 2 °F .
Low Limit High Limit Actual Temperature
70 74 76
2 Deg
Nearest
Limit
Data Register
WCC III Technical Guide
1. GENERAL INSTRUCTIONS
Alarms
Alarm Call-Out
The WCC III will automatically e-mail a report of the alarms to
an e-mail address. There are eight different alarm types or alarm
priorities. The fi rst fi ve alarm types can “e-mail-out”; each of these
fi ve alarm types can e-mail 3 separate e-mail addresses.
Analog Alarm Limit
Each analog input can have a low and high limit assigned to it
on the Analog Input Screen. If the value of the analog input falls
below the low limit or rises above the high limit, the system
automatically generates an alarm. For example, assume that the
analog input in question is a room temperature sensor located in
an offi ce space. If the space temperature falls below 68 °F or rises
above 80 °F during the occupied period, we want an alarm to call
out. T o set up the alarm limits, fi rst sign on by accessing the System
Parameter Screen and entering your password. An access level of
1 or greater is required to enter or change alarm limits. After you
are signed on, return to the Main Menu and place the cursor over
“ANALOG INPUT” and press <Enter>. An Analog Input Screen
similar to what is shown below should come into view:
The alarm limits along with the alarm type and alarm message
numbers are assigned on this screen (see the Analog Input Screen
in Section 3 for more information). If the space temperature drifts
out of the entered alarm limits, the system will automatically
generate an alarm. For example, assume that the space temperature
rises above the high limit value of 80 °F . Alarm message #1 (High
Temperature) along with the time and date of the alarm and the
high peak value of the room temperature will appear on Analog
Input Summary Screen and the Alarm Summary Screen. Within
one minute from the time the alarm appears on the screen, it
will automatically be e-mailed if enabled. (To acknowledge
alarms, select <Action> from the Top Menu Bar and then select
<Acknowledge Alarm> or <Acknowledge All Alarm> described
in the Help Screen, Analog Input Summary Screen, and Alarm
Summary Screen in Section 3 of this guide.
Satellite #1 ANALOG INPUT #1
Description: RM 101 Type: Analog
Pattern for values associated with this input: xxx.x
Units @ 0% scale: 0.0 Deg F Units of Measure Message #: 1
@ full scale: 100.0 Deg F Filter Time Constant: 8 seconds
-------------------ALARMS--------------------
Controlled by: W1 Limits Low High
Alarm Type: 1 On 68.0 80.0 Deg F
Alarm Message #’s: Low 2 High 1 Off 50.0 90.0 Deg F
Alternate Limits selected by:.... On (alt) 0.0 0.0 Deg F
Off (alt) 0.0 0.0 Deg F
Limit overlap time
after control change: 20 Minutes Local set 55.0 90.0 Deg F
----------------------BINARY SETPOINT---------------------- OFF Above 0.0 Deg F On Message #: 0
OFF Below 0.0 Deg F Off Message #: 0
HOME for menu
WCC III Technical Guide
1-11
1. GENERAL INSTRUCTIONS
Alarms
Run Time Alarm
The WCC III system also has the capability of alarming if the total
ON time of a binary (on/off) value has exceeded the run time alarm
limit. T o assign a run time alarm limit, fi rst sign on by accessing the
System Parameter Screen and entering your password. An access
level of 2 or greater is required to enter or change alarm limits.
After you are signed on, return to the Main Menu and place the
cursor over “TREND LOGS” and press <Enter>. The Trend Log
Summary Screen should come into view. To access a Run Time
Trend Logging Screen, use the arrow keys to place the cursor (>)
by the desired run time point, and press <Enter>. The following
screen should come into view:
In this example screen, we are recording the total “ON” time of
contact Klc (COM to C contact closure) on satellite controller
#1. When contact Klc is closed, or “ON”, Fan #1 runs. Run time
recorder #1 records total accumulated run time of the fan. Alarm
message #7 (Grease Bearings) will automatically appear on the
Alarm Summary Screen when the total accumulated run time of
the fan exceeds 500 hours. Within one minute after the alarm
appears on the screen, it will automatically e-mail if enabled. (See
the Alarm Summary Screen in Section 3 for information about
how to acknowledge a run time alarm, and see the Run Time Trend
Logging Screen section in Section 3 of this manual for information
about how to reset the accumulated run time to zero.)
Satellite Fail Alarm
If the Master Communications Device loses communications
with a satellite controller, a Satellite SOS Alarm will show which
satellite is out of service and the time and date of the alarm.
Satellite # 1 TREND LOGGING # 1 of Type: RUN TIME
Records total ON time Starting at : *:* on */*
for K1c Fan # 1 Reset by: L16 being ON
Alarm Type: 6
Alarm Message #: 7
Current run time: 250 Hours Alarm Limit: 500 Hours
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1-12
WCC III Technical Guide
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