Stulz CompTrol 1002 Bedienungsanleitung
CompTrol 1002
AIR CONDITIONING
Index 50
Issue 3.10
MICROPROCESSOR
TECHNICAL MANUAL
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Contents
1. Features ......................................................................................................................4
2. Operation and Status Elements ............................................................................... 5
3. Start-up .......................................................................................................................9
4. Menu ......................................................................................................................... 11
5. Alarms and Failures ................................................................................................ 22
6. Control Diagram for CW-Units ................................................................................25
7. Specification CompTrol 1002 ..................................................................................27
7.1 Technical Data ................................................................................................. 27
7.2 Connection Diagram of Processor Board C1002 ........................................... 28
7.3 Bus connection ............................................................................................... 30
7.4 Connection Diagram for Sequencing at the Processor-Board ........................32
8. Specifications of the Extension Card 1b ...............................................................33
8.1 Technical Data Extension Card 1b ..................................................................34
8.2 Connection Diagram of the Extension Card 1b ............................................... 35
8.3 Connection Diagram for Sequencing with Extension Card .............................36
9. Appendix .................................................................................................................. 37
9.1 Standard Setting .............................................................................................37
9.2 Password ........................................................................................................38
Subject to technical modifications - precedent manuals are not valid anymore
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1. Features
STULZ CompTrol 1002 is a complete control system for A/C-Units. The controller is build in a com-
pact microprocessor design and is completely digital.The controlling system is driven by software
only.
CompTrol 1002 controls temperature and humidity and supervises the room in respect of freely
adjusted limit values.
With the CompTrol 1002 single-module Chilled water (CW) units or units with a 2-stage compressor
can be controlled. A 2-unit-sequencing is also included.
Functions such as cooling, reheat, humidification and dehumidification are continuously controlled
and supervised. In case of any deviation from setpoints, the CompTrol 1002, will initiate necessa-
ry measures immediately. Parameters for the control system and the functions which have to be
controlled can be adjusted by three keys on the CompTrol 1002.
The CompTrol 1002 can be connected to the STULZ Monitoring System.
This manual is valid from CompTrol 1002 Software-Version 2.0
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2. Operation and Status Elements
Alarm reset
START/ STOP key
"Right arrow" key
"Down arrow" key
"Up arrow" key
4-digit LED-Display
Connection board
DIP- switch 1-4
Rear Plate
Face Plate
Status "cooling"
Status "reheat"
Status "humidification"
Status "dehumidification"
Alarm
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4-Digit LED-Display
In this LED-display all controlling parameters such as setpoints, actual values and limiting values,
are shown.
Status LED
Status LED shows actual operation mode of controller. As a function is switched on, the corres-
ponding Status LED is indicated. On a CW-Unit, Status LED "cooling" indicates when CW-valve
has an opening degree bigger than 0%.
Status LED "alarm" indicates when an alarm occurs.
DIP-Switch 1-4
Adjustments that need not to be changed after initial installation, are made by these DIP- switches.
DIP- Switches 1-4 have the following functions:
DIP-Switch 1 No function
Modification from Version 2.1: When the sequencing is active (i.e.
menue point 24 > 0), the start of the stand-by unit can be chosen by
this switch.
ON: No start by passing over a limit value
OFF: Start of stand-by unit in addition, 3K before the limit
value "Temp. too high" is reached.
DIP-Switch 2
The control of the compressor version or the CW version can be
chosen by
this DIP-switch.
OFF: Control of compressor version is chosen.
ON: Control of CW version is chosen.
Some menu items, alarm inputs and outputs will obtain another meaning.
DIP Switch 2 must only be switched when dead.
DIP-Switch 3 Two alarm inputs can be chosen by this DIP- switch.
ON: The inputs "auxiliary alarm 1" and "auxiliary alarm 2"
have the function of external alarms.
OFF: The input alarm 2 has the function of a fire and smoke
detector.
The input alarm 1 has the function of a water sensor.
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Consequences of alarm inputs "auxiliary alarm 1" and "auxiliary alarm 2" de-
pends on position of DIP-switch 3. DIP-switch 3 can be switched at any time,
even during controller operation. The function of this switch is immediately valid
without further measures.
DIP-Switch 4 Temperatures in °C or °F can be chosen by this DIP-switch.
OFF: All temperatures are shown in °C.
Temperature differences are shown in K.
The actual value is marked by a "C".
ON: All temperatures are shown in °F.
Temperature differences are converted to degree
Rankin. The actual value is marked by an R.
DIP - switch 4 can be switched over any time, even during controller
operation. Function of switch is valid without further measures.
Membrane Keys
Start/Stop Key
Operation mode "start" and "stop" are the only functions of this key. If the controller is in enter
mode, the key is ineffective.
Operation Mode "Stop"
Control system and unit are not in operation. CW-valve closes. Limit values are supervised. In-
dependent failures (like sensor break-down, water sensor alarm, fire alarm, smoke detector and
other external alarms) are supervised. Display indicates .
The horizontal bar in display means that controller has been locally turned off by the Start/
Stop-key.
Occuring alarms and failures can be reset in menu item 1. Inputs and modifications in all menu
items can be made.
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Operation Mode "Start"
Control system and unit are in operation. Unit functions are turned on when start values match
setpoints of corresponding functions. Limit values are supervised. Menu item 1 is shown. Display
is alternating between actual value "temperature" and actual value "humidity" in 2- second- inter-
vals.
Occuring alarms and failures can be reset in menue item 1. Inputs and modifications in all menue
points can be made.
Right Arrow Key
This key has several functions.
Menu Item 1 And Operation Mode "Stop"
Alarm reset is activated by pressing the key.
Menu Items 2 to 24
The enter mode for these menu items is activated by pressing the key. After pressing this key there
is a request for entering in the password.
Enter Mode
Being in the enter mode, you can confirm the entered parameters and leave the enter mode by
pressing this key again. The value shown last is stored in the memory and is used for controlling.
Up Arrow Key
Next menu item can be entered by this key. The shown value is increased in enter mode.
Down Arrow Key
Last menu item can be reached by pressing this key. The shown value is diminished in enter
mode.
Pressing one of these two keys longer than one second in enter mode means
pressing this key 12 times.
If none of the keys is used within five minutes, the display automatically returns to menu item 1.
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3. Start-up
Prior to initialization, the software version number is displayed for about 1 s.
Example: Software version 2.1
When the C1002 is started (operation voltage is supplied) the following symbol appears in the
display for one second during initial phase:
In this initial phase all values of the EEPROM memory are loaded into the RAM.
Independent of the requirements for a certain function the CW- valve is closed for the time entered
in menu item 8. This procedure is necessary to synchronise the control system with the modulating
valve.
Start- up in Operation Mode "Stop"
If the CompTrol 1002 was in operation mode "Stop" before cutting off the power supply, the cont-
roller will be in this operation mode again after the restart. Three possibilities of how the unit has
been stopped, exist:
Display
1. Start/Stop-Key: local mode
2. Remote On/Off: remote mode
3. Software On/Off: Monitoring system
If controller is stopped from several locations, the corresponding bars in the fourth character po-
sition appear on the display. Restarting is only possible if the controller is locally started by the
Start/Stop-key. The Start/Stop-Key has the highest priority.
Start-up in Operation Mode "Start" (Autostart)
The CompTrol 1002 is equipped with an "Autostart"- function. This means that the unit starts au-
tomatically after a power supply failure when it was in operation mode "Start" before. A restart of
several units equipped with the C1002 at the same time can be avoided by entering a time delay
in menu point 22.
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Start-up with Standard- Program
If the two keys which represent the password are pressed at the same time as power is turned on,
the following reading appears on the display:
At this time the standard program is loaded from program memory EPROM to the EEPROM
memory and RAM. During this procedure the control system is not working. By loading the stan-
dard program the controller is switched off locally and has to be set in operation mode "start" by
pressing the Start/Stop-key.
Start- up with new EEPROM
If the CompTrol 1002 is started with a new EEPROM, the following symbol appears in the display
during the initial phase (about 1 second):
The standard values of the program memory EPROM are loaded into the EEPROM and into the
RAM. During this procedure the control system is not working. During this time the controller is
not working. By loading the standard program the controller is switched off locally and has to be
set into operation mode "start" by pressing the Start/Stop-key.
Warm start
The Controller CompTrol 1002 is equipped with a "watchdog-timer". This "watchdog-timer" incre-
ases the operating safety and restarts the program if a runtime error occurs. In such a case the
following reading appears in the display:
If the C1002 was in operation mode "start", the autostart function is activated in this case.
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