Stulz C7000 Bedienungsanleitung
User manual
Original operating instructions
Read carefully before use!
Keep for later reference!
Version 01-2019 – 1000755 English
for ECD/U 091 (version 05), ECD/U 091, 181, 251 (versions 06, 07),
ECD/U 502 (as of version 02)
C7000 Controller for EC Tower
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BA C7000 for EC Tower | EN | 01-2019 | 1000755
2
Dear Customer,
Many thanks for choosing to buy a Stulz product. Stulz has been a purveyor of sophisticated technical solutions for
comfort and precision climate control applications since 1947.
In Germany, Stulz is the exclusive sales partner for energy-efficient comfort air-conditioning systems of
Mitsubishi Heavy Industries.
Kind regards,
Stulz GmbH
Current updates to technical documentation
You can find the latest documents and brochures at
http://www.s-klima.de/downloads.
Figure 1: QR code for S-Klima downloadcenter
MITSUBISHI Heavy Industries Support-App
Download free of charge and use on-the-go: the app makes things easy!
• Ofine error code analysis
• Automatic database updates
• Stulz insider tips for troubleshooting
• Request callbacks from Stulz Support
• Send photos to Stulz Support
Figure 2: QR code for the support app
Manufacturer's address
Stulz GmbH
S-Klima Division
Holsteiner Chaussee 283
D-22457 Hamburg
Germany
3
Contents
1. Information on this document ............................................................................................... 4
1.1 Scope ................................................................................................................................................4
1.2 Other applicable documents ..............................................................................................................4
2. Presentation of the control system ....................................................................................... 5
3. Hardware components ........................................................................................................... 6
3.1 I/O controller (C7000 IOC) ................................................................................................................6
3.1.1 PIN assignment - I/O controller .................................................................................................................. 7
3.2 EDIO -Expansion card for digital inputs and outputs .........................................................................8
3.3 EBUS expansion board for RS485 bus ...........................................................................................10
3.4 C7000 Advanced - Terminal (C7000AT) ..........................................................................................11
3.5 Driver module ..................................................................................................................................12
4. C7000 Advanced user interface .......................................................................................... 13
4.1 Operational controls ........................................................................................................................13
5. Controller start ...................................................................................................................... 14
6. Info menus ............................................................................................................................. 18
6.1. Info and Operate menus of the operation interface C7000AT .........................................................18
7. Configuration ........................................................................................................................ 23
7.1 Values ..............................................................................................................................................23
7.2 Components ....................................................................................................................................29
7.2.1 Refrigerant circuit, standard ..................................................................................................................... 29
7.2.2 Air circuit, internal standard components ................................................................................................. 34
7.2.3 Air circuit, internal components ................................................................................................................ 39
7.2.4 Air circuit, external optional components ................................................................................................. 42
7.2.5 Sensors .................................................................................................................................................... 42
7.2.6 Contacts ................................................................................................................................................... 44
7.3 Statistics ..........................................................................................................................................45
8. Special operating modes ..................................................................................................... 47
8.1 Week program .................................................................................................................................47
8.2 Zone control ....................................................................................................................................48
8.2.1 Sequencing .............................................................................................................................................. 51
8.3 Manual mode ...................................................................................................................................55
8.4 UPS operation .................................................................................................................................55
9. Bus communication on the EC tower ................................................................................. 56
9.1 System examples with the C7000 Advanced ..................................................................................56
9.2 Bus set-up .......................................................................................................................................57
9.2.1 General .................................................................................................................................................... 57
9.2.2 Setting up an IO bus ................................................................................................................................ 57
9.2.3 Manual preparations ................................................................................................................................ 58
9.2.4 Adjusting the bus addresses .................................................................................................................... 58
9.2.5 Bus overview ............................................................................................................................................ 59
9.2.6 Special cases ........................................................................................................................................... 60
10. Basic settings ..................................................................................................................... 62
10.1 Load basic settings for the EC tower .............................................................................................69
10.1.1 Basic settings of size 1 and 2 ................................................................................................................. 69
10.1.2 Basic settings of size 3 ........................................................................................................................... 69
11. Alarm treatment .................................................................................................................. 70
11.1 Event log ........................................................................................................................................70
11.2 Alarm configuration .......................................................................................................................70
11.3 Alarm reset ....................................................................................................................................70
11.4 Alarm texts ....................................................................................................................................72
12. Menu structure of the main menu for operating the EC tower ....................................... 74
12.1 Menu structure of the Info main menu ...........................................................................................74
12.2 Menu structure of the Operate main menu ....................................................................................76
12.3 Menu structure of the Config main menu ......................................................................................78
BA C7000 for EC Tower | EN | 01-2019 | 1000755
BA C7000 for EC Tower | EN | 01-2019 | 1000755
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1. Information on this document
These operating instructions contain detailed information about operating and troubleshooting.
Always keep the operating instructions at the operation site.
Make sure that persons responsible for operating the product and those working on the product have fully read and
understood these operating instructions. If you have any queries, please call the Service Center.
1.1 Scope
These operating instructions apply to the following sizes and versions of the EC tower:
• Size 1 comprises the downflow and upflow units ECD/U 91:
- ECD/U 91 version 05: Production from 01.01.2017 to 03.31.2017 (Electric heater change)
- ECD/U 91 version 06: Production from 04.01.2017 (Fan impeller change)
- ECD/U 91 version 07: Production from 01.2018
• Size 2 comprises the downflow and upflow units ECD/U 181 and ECD/U 251:
- (ECD/U 181 and 251 version 05: This version has been skipped)
- ECD/U 181 and 251 version 07: Production from 01.2018
• Size 3 comprises the downflow and upflow units ECD/U 502:
- (ECD/U 502 version 01: prototype)
- ECD/U 502 version 02: Production from 05.2017
- ECD/U 502 version 03: Production from 04.01.2018
These operating instructions are valid as of the following software versions:
• Size 1 (ECD/U 91) as of version 05: as of IOC-V6.71 and AT-V4.66
• Size 1 (ECD/U 91) as of version 07: as of IOC-V6.71 and AT-V4.66
• Size 2 (ECD/U 181 and ECD/U 251) as of version 06: IOC-V6.71 and AT-V4.66
• Size 2 (ECD/U 181 and ECD/U 251) as of version 07: IOC-V6.71 and AT-V4.66
• Size 3 (ECD/U 502) as of version 02: as of IOC-V6.71 and AT-V4.66
• Size 3 (ECD/U 502) as of version 03: as of IOC-V6.71 and AT-V4.66
1.2 Other applicable documents
Besides these operating instructions, please also observe the following documents:
• EC Tower technical instruction manual (for ECD/U 091 (version 05), ECD/U 091, 181, 251 (version 06))
• EC Tower technical instruction manual (for ECD/U 091, 181, 251 (version 07))
• Technical instruction manual for EC Tower 502 as of version 03 (size 3)
• Technical instruction manual for outdoor unit
• Circuit diagram (included in the delivery of the air conditioning unit and as a download on the S-Klima website)
• Operation and connection data of the EC tower
• Commissioning log for EC tower (for ECD/U 091 (version 05), ECD/U 091, 181, 251 (version 06) and for ECD/U
091, 181, 251 (version 07)) (Download on the S-Klima website)
• Commissioning log for EC tower 502 (versions 02 and 03) (Download on the S-Klima website)
• WIB 8000 technical instruction manual (Download on the S-Klima website)
• BMS technical instruction manual (Download on the S-Klima website)
The newest technical documentation is available to download from the S-Klima website:
http://www.s-klima.de/downloads.
5
BA C7000 for EC Tower | EN | 01-2019 | 1000755
The C7000 control system offers operational reliability for
industrial applications in combination with two designs for
the user interface. The C7000IOC is responsible for the
control. The C7000 Advanced is optional and serves as a
convenient user interface.
Every air conditioning unit has its own controller, while all
controllers can be connected with one another via a bus
system.
Beyond the basic functions of air conditioning technolo-
gy, the C7000 control system offers its own interesting
functions, e.g. intelligent management of the high/low
pressure alarms, a constant fan speed regulation, which
introduces a further field of application, and time-based
functions such as:
- Week timer
- Unit sequencing within definable unit groups
A watchdog on the C7000IOC monitors the CPU function
and generates a reboot as soon as no CPU activity has
been detected for 0.5 seconds.
Up to 4 EAIO/EDIO boards for additional inputs and out-
puts can be inserted at right angles on the C7000IOC.
The C7000 control system manages 4 buses:
1. IIC bus for communication between the C7000 I/O
controller and the EAIO/EDIO
2. RS485 IO bus for communication among the air con-
ditioning units
3. RS485 BMS bus for communication with a building
management system
4. RS485 component bus (e.g. for EVD driver; µPC)
2. Presentation of the control system
Analog (A) and digital (D) input and outputs
A-IN A-OUT D-IN D-OUT
IOC 4 4 11 7
EAIO 4 4 / /
EDIO / / 8 6
Maximum equipment with EEIO
IOC + 3 EAIO 16 16 11 7
IOC + 3 EDIO 4 4 35 25
Maximum equipment without EEIO
IOC + 4 EAIO 20 20 11 7
IOC + 4 EDIO 5 4 43 31
Interfaces
IOC
1 x RS485 IO bus, terminals
4 x IIC bus, SUB-D15
EBUS connection SUB-D15
RS232, SUB-D9
EAIO IIC bus, SUB-D15
EDIO IIC bus, SUB-D15
EEIO IIC bus, SUB-D15
EBUS
I/O controller connec. SUB-D15
RS485 BMS bus, terminals
RS485 component bus, terminals
C7000AT
2 x RS485 IO bus + BMS,
terminals
2 x RS232 BMS + service,
SUB-D9
IIC bus: internal data bus on the IO controller
EAIO: Expansion board for analog inputs and outputs
EDIO: Expansion board for digital inputs and outputs
EEIO: Expansion board for up to two electronic expansion
valves
EBUS: Expansion board for a RS485 bus
Technical data subject to change without notice.
BA C7000 for EC Tower | EN | 01-2019 | 1000755
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1 10 21 30 41 50
11 20 31 40 51 60
JP 2 3 4 5
JP 6
JP 7 JP 9 JP 8
OK LED
TX1 LED
RX1 LED
Error LED
3. Hardware components
3.1 I/O controller (C7000 IOC)
Jumper settings according to the
sensor type
Jp n° Pos.1-2 Pos.2-3
Analog inputs
A-IN 1 2
4-20 mA
0-10 V
A-IN 2 3
A-IN 3 4
A-IN 4 5
A-IN 5 6 not usable*
Pin position of X1
Service port
RS232
Plugs for EBUS
exp. board
Jumper for software download
Jp n° Pos. 1-2 Pos. 2-3
7 Operation Download
EBUS activation
Jp n° Function, when set
8 EBUS port 2 deactivated
9 EBUS port 3 deactivated
Jp8 and Jp9 have to be set if there is no EBUS
expansion board. On the contrary, they have to be
removed to activate the RS485 expansion buses
on the plugged EBUS expansion board.
Green LEDs for red LEDS for
digital inp. 1-11 digital outp. 1-7
LEDs on the circuit board
The function of the digital inputs is indicated by the
green LEDs:
ON: voltage present
OFF: no voltage (Alarm, error)
The function of the digital outputs is displayed by
the red LEDs:
ON: relay energized
OFF: relay not energized
The OK LED displays the IIC bus clock. The sensors
are evaluated in this cycle.
The TX1/RX1 LEDs display the data traffic on the
I/O bus (port 1).
The Error LED lights up if an alarm has occurred.
Dipswitch
for bus adr.
4 sockets
for EDIOs/
EAIOs/
EEIO
Driver module
for the I/O bus
Technical data:
Electrical supply: 24(+15 %) V (AC)
Power consumption: 9.6 VA
Fuse: 2 A inactive
Operating temperature: 5 °C to 40 °C
Storage temperature: -30 °C to 60 °C
For further information, see page 12.
*Exception: for PT1000/100 on existing
systems
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BA C7000 for EC Tower | EN | 01-2019 | 1000755
3.1.1 PIN assignment - I/O controller
Pin Designation EC Tower/EC Tower 2
1 24 VAC Electrical supply
2 GND
3 GND –
4 D-IN 1 Fan malfunction
5 D-IN 2 Status signal
Compressor 1
6 D-IN 3 –/ Status signal
Compressor 2
7 D-IN 4 Electric heater malfunction 1-3
8 D-IN 5 Filter alarm
9 D-IN 6 Humidifier malfunction
10 D-IN 7 Water detector
11 D-IN 8
Outdoor unit malfunction 1
12 D-IN 9 – /
Outdoor unit 2 malfunction
13 D-IN 10 Remote on/off
14 D-IN 11 Fire
15 D-OUT 1 (NO)
Fan enable16 D-OUT 1 (COM)
17 D-OUT 1 (NC)
18 D-OUT 2 (NO)
Not assigned19 D-OUT 2 (COM)
20 D-OUT 2 (NC)
21 D-OUT 3 (NO)
Electric heater 122 D-OUT 3 (COM)
23 D-OUT 3 (NC)
24 D-OUT 4 (NO)
Electric heater 225 D-OUT 4 (COM)
26 D-OUT 4 (NC)
27 D-OUT 5 (NO)
Dehumidification or
hot-gas bypass
28 D-OUT 5 (COM)
29 D-OUT 5 (NC)
30 D-OUT 6 (NO)
Common alarm 131 D-OUT 6 (COM)
32 D-OUT 6 (NC)
33 D-OUT 7 (NO)
–34 D-OUT 7 (COM)
35 D-OUT 7 (NC)
The assignment depends on the unit type (DX1, DX2, CW, EC tower, EC tower 2). A DX1 unit is an air conditioning unit with
a refrigerant circuit; a DX2 unit is an air conditioning unit with two refrigerant circuits. A CW unit is an air conditioning unit with
one or two water circuits (CW/CW2 designs). An EC tower is an air conditioning unit with an inverter-regulated outdoor unit of
Mitsubishi Heavy Industries.
e.g. ALD 371 GE -> DX1, ASU 462 ACW -> DX2, ASD 950 CW -> CW
Pin Designation EC Tower/EC Tower 2
36 +15 V Active sensor 1
37 GND
38 A-IN 1 Room/return air temp.
39 A-IN 2 Room/return air humidity
40 +15 V –
41 GND
42 A-IN 3 Supply air temperature sensor
43 A-IN 4 Supply air humidity sensor
44 +Ub
No function
45 GND
46 A-IN 5
47 GND
48 A-OUT 1 Fan
49 GND
50 A-OUT 2 – / Compressor speed 2
51 GND
52 A-OUT 3 Humidifier or
actual value humidity
53 GND
54 A-OUT 4 Compressor speed 1
55 GND
56 Port 1-H RS485 I/O bus
57 Port 1-L
58 Port 1-H
RS485 I/O bus
59 Port 1-L
60 +15 V –
X10 SUB-D 15
Bus 3
IIC
(socket1)
X11 SUB-D 15
Bus 3
IIC
(socket2)
X12 SUB-D 15
Bus 3 IIC (socket3
)
X13 SUB-D 15 Bus 3
IIC
(socket 4)
X14 SUB-D 15 Exp. EBUS (plug)
X15 SUB-D 9 RS232 service port (plug)
BA C7000 for EC Tower | EN | 01-2019 | 1000755
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/10.2018/G57
10
1 10 21 30
11 20 31 40
LDI
19
18
17
16
15
14
13
12
LDO
13
12
11
8
10
9
2.2 EDIO - extension board for digital in- and outputs
Pin position of X1
green LEDs for red LEDs for
digital inputs 12-19 digital outputs 8-13
of the first EDIO-board
Onboard LEDs
The function of the digital inputs is displayed by
green LEDs:
ON: voltage present
OFF: no voltage (alarm, failure)
The function of the digital outputs is displayed by
red LEDs:
ON: relay active
OFF: relay passive
enlarged section for onboard LEDs
The EDIO is an expansion board for digital inputs
and outputs. It can be plugged on the I/O controller
board at each of the 4 sockets and will be recognized
by the IOC due to a self test.
Technical Data:
Power consumption: 10,1 VA
Operating temp.: 5°C...40°C
Storage temp.: -30°C...60°C
not assigned
EN
3.2 EDIO -Expansion card for digital inputs and outputs
The EDIO expansion card is only used in the following EC towers:
• ECU/D 502 (size 3) as of version 02.
9
Pin Designation EC Tower 2
1 Din 12
2 Din 13
3 Din 14
4 Din 15
5 Din 16
6 Din 17
7 Din 18
8 Din 19
9 Dout 8 (NO)
10 Dout 8 (COM)
11 Dout 8 (NC)
12 Dout 9 (NO)
13 Dout 9 (COM)
14 Dout 9 (NC)
15 Dout 10 (NO)
16 Dout 10 (COM)
17 Dout 10 (NC)
18 Dout 11 (NO)
19 Dout 11 (COM)
20 Dout 11 (NC)
21 Dout 12 (NO)
22 Dout 12 (COM)
23 Dout 12 (NC)
24 Dout 13 (NO)
25 Dout 13 (COM)
26 Dout 13 (NC)
27 PWM1 free
free
free
free
free
free
free
free
free
free
free
free
free
free
free
free
free
free
28 GND
29 PWM2 E-reheat 1 (proportional)
30 GND
X10 SUB-D 15
Pins 31 to 40 are not assigned.
The assignment depends on the unit version (DX1, DX2, CW, EC Tower 2). Explanation see page 7.
If several EDIO boards exist, the EDIO board on the lowest socket is detected as the first EDIO board and the in- and outputs are
assigned correspondingly when using the "loaddefault" command. The IOC board features four sockets for this purpose: X10, X11,
X12 and X13. X10 represents the lowest socket.
BA C7000 for EC Tower | EN | 01-2019 | 1000755
Assignment - EDIO
BA C7000 for EC Tower | EN | 01-2019 | 1000755
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Port 2
Port 3
3.3 EBUS expansion board for RS485 bus
Circuit board design
Pin Designation Function
1 Port 2-H RS485 BMS bus
2 Port 2-L
3 Port 3-H RS485 components bus
4 Port 3-L
X10 SUB-D 15 to X14 on IO controller
Jp no. Function, if open
8 EBUS port 2 activated
9 EBUS port 3 activated
Assignment - EBUS board
Technical data:
Power consumption: 11.3 VA
Operating temperature: 5 °C to 40 °C
Storage temperature: -30 °C to 60 °C
Note:
If an optional EBUS expansion card is used, jumper
8 and jumper 9 have to be removed.
If no EBUS expansion card is used, jumper 8 and
jumper 9 have to be set.
EBUS activation
Setting at the end of the bus for port
2: (Example)
Bias high
Bus termination: on
Setting in the middle of the bus for
port 3: (Example)
Bias: low
Bus termination: off
Switch for adjusting the
bias and the
bus termination
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