advertisement
VAV adjustment and diagnostic tool with
PP interface for Belimo VAV controllers.
Connection via
• Service socket on VAV controller
• MP/PP interface
• Control cabinet
Operating instructions VAV adjustment tool ZTH-VAV
Technical data
Safety notes
Brief description
www.belimo.com
Electrical data Nominal voltage
Power supply range of VAV controller
Power consumption In operation
For wire sizing
Connection Plug socket for Belimo PP interface
Connecting cable
MP/PP interface Communication
VAV controllers VAV-Universal
VAV-Compact
Operation LC display
Buttons
Quick start guide
Safety / tests Protection class
EMC
Operating temperature
Storage conditions
Dimensions / weight Dimensions
Weight
From VAV controller, AC 24 V, 50/60 Hz / DC 24 V
AC 19.2 ... 28.8 V / DC 21.6 ... 28.8 V
1 W
2 VA
RJ12 socket
See page 6
PP, no MP operation
VRD2, VRD3, VRP-M (VAV & STP)
NMV-D2, LMV-D2M, NMV-D2M
LMV-D2-MP, NMV-D2-MP, SMV-D2-MP,
LHV-D2-MP
LMV-D2LON, NMV-D2LON
2 x 16 characters with backlighting
▼ / ▲ / – / + / OK
Included, en/de
III Safety extra-low voltage
CE according to 89/336/EEC
0 ... 50°C, non-condensing
–20 ... 50°C, non-condensing
See page 8
Approx. 260 g
!
• The device is not allowed to be used outside the specified field of application, especially in aircraft or in any other airborne means of transport.
• Only suitable for connection to Belimo VAV devices with 24 V safety extra-low voltage and a
PP/MP interface.
Applications The ZTH-VAV adjustment tool enables VAV and CAV systems to be tested efficiently. Systems equipped with Belimo VAV controllers can be easily adjusted to individual room and user requirements.
Can be used with: available since:
VAV-Universal VRD2, VRD2-L
VAV-Universal VRD3 1)
VAV-Universal VRP-M [VAV and STP (pressure application)]
VAV-Compact NMV-D2
VAV-Compact LMV-D2M, NMV-D2M
VAV-Compact LMV-D2-MP, NMV-D2-MP, SMV-D2-MP, LHV-D2-MP
VAV-Compact LMV-D2LON, NMV-D2LON
1) Requires ZTH-VAV Firmware V1.02 or higher
1992–2007 from 2008 from 2005
1992–2000
2000–2006
2006
2006
T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes 1 / 8
ZTH-VAV Operating instructions VAV adjustment tool
Brief description
Connection and supply
(Continued)
Stand-alone operation:
The tool can be connected and supplied using the service socket on the VAV controller or the connecting terminals.
Bus operation:
If the ZTH-VAV is connected to the local service socket, it can be used to test the following devices without interrupting the bus: VAV-Compact L/N/SMV-D2-MP and L/NMV-D2LON.
The MP-Bus must be disconnected in order to test the VRP-M and L/NMV-D2M when the service socket is used.
Limitation
The tool cannot be directly connected in an MP network or via an MP-Bus master.
ZTH-VAV
▲ ▼ – + OK
ZTH-VAV
▲ ▼ – + OK
MP6 MP6
MP7 MP7
MP1 MP1
MP4
MP8
MP5
MP3
MP-Master
MP4
MP8
MP5
MP3
MP-Master
MP2 MP2
Operating instructions
Compatibility
Connection
These operating instructions describe handling of the ZTH-VAV adjustment tool. For a detailed description of VAV controllers, please refer to the separate product documentation, which can be downloaded from www.belimo.eu ¦ Documentation ¦ Room & System Solutions.
A quick start guide in English and German is included with the ZTH-VAV as a sticker that can be affixed to the rear of the device.
The ZTH-VAV adjustment tool supersedes the old ZEV adjustment tool (1992–2007).
All standard Belimo VAV controllers with integrated PP communication that are sold in EU countries (from 1992) can be adjusted using the ZTH-VAV.
Belimo Automation AG reserves the right to make changes or improvements at any time without prior notice. The latest version of these operating instructions is published on our website: www.
belimo.eu.
See page 6.
Operation
Buttons, display LC display, 2 x 16 characters with backlighting
▼▲ Scroll up / down, cancel
– + Change value
OK Confirm
RJ12 connection:
PP / 24 V
See page 6
Device rear, quick start guide A quick start guide in English and German is included with the
ZTH-VAV as a sticker that can be affixed to the rear of the device.
Contents:
– Connection
– Overview of types
– Access to Configuration menu
– Operating menu with navigation tree
2 / 8 T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes www.belimo.com
ZTH-VAV
Operation
Operating instructions VAV adjustment tool
Configuration menu
(Continued)
You can set the language and the volumetric flow units in the Configuration menu.
The settings are stored.
Start Configuration menu
Action: Keep the (OK) button pressed while you connect the tool to the VAV controller.
Reaction:
Continue with:
Exit:
«Configuration menu» appears on the display
(▼ ▲) buttons
Menu option «leave config-menu» or disconnect cable
Device ID
Options
Operating menu – overview
Text
Units
Supply
MP tester
Expert Mode
German * / English m 3 /h *, l/s, cfm
AC 24 V
0 */ 1
AV 24 V voltage indication, refer to page 7 for an explanation
MP-Bus level tester MP-Bus diagnostic tool for system integrators
The MP tester is not included in this documentation.
Activates mode switching,
Restores original min
/ max
values
Advanced Mode 0 */ 1 Activates the direction-of-rotation setting
* Default
The operating menu adapts to the functionality of the connected VAV controller. Options that are not relevant are not shown.
Controller type
Position Adress
Serial no.
Controller type
Firmware version
OK
+
VAV controller
Explanation
Menu
Actual volumetric flow / pressure
Setpoint volumetric flow / pressure
Actual differential pressure
Damper position
Select CAV step
Change mode 0 … 10 / 2 … 10 V
Restore min
/ max
defaults
min
setting
max
setting
nom
setting on VAV unit
∆p @ nom
Legend
Change values, write
Configuration, Expert mode must be active
Displayed value
Display in %, Pa
Not possible
%
%
1)
Pa Pa
%
%
Pa
1)
Pa
Pa
Pa %
Pa %
Pa
% Pa
1) only with VRP-M V3.x
– +
– +
OK
OK www.belimo.com
T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes 3 / 8
ZTH-VAV Operating instructions VAV adjustment tool
Operation
Device identification
(Read only)
Note
Only characters in the ISO-8859-1 character table are supported.
(Continued)
As soon as the ZTH-VAV is connected to a VAV controller, the display shows the version number and then a device ID containing the following information:
• Type
• Position
Type of the connected VAV controller, e.g. LMV-D2-MP
Text string programmed with the PC-Tool, e.g. system designation
Press (OK) to display the following additional information:
• Adress
• Serial no.
PP or MP1...8 (no addresses are supported by VRD2 / NMV-D2; display: ?)
Unique, 16-character serial number
Press (+) to display the firmware version in addition to the type. This function is not supported by the NMV-D2 or VRD2.
Functions
Actual volumetric flow
(read only)
(0 … 100 % nom
)
Reference signal w [V]
0
10
8
2 4
Setpoint
(reference signal)
6
max
8 10 [V]
nom
6
4
2
Actual volumetric flow signal U5
Note
For a detailed description of these functions, please refer to the separate documentation for the
VAV controllers concerned.
Visit www.belimo.com or contact your local Belimo representative.
0
Example
Mode 0 ... 10 V
0 20 40 60 80
min
The volumetric flow is indicated relative to the nom
setting.
100
Volumetric flow [% nom
]
Setpoint
(Read only)
(CLOSE, min
… max
, OPEN)
Reference signal w [V]
0
10
2 4
8
Setpoint
(reference signal)
6
max
8
OPEN
10 [V]
nom
6
Pressure
(Read only)
4
Actual volumetric flow signal U5
2
CLOSE
0
Example
Mode 0 ... 10 V
0 20
min
40 60 80 100
Volumetric flow [% nom
]
The setpoint setting range corresponds to min
... max
. If a local override function is active, e.g. NMV-D2-MP: CLOSE damper (jumper 1–3), this information is shown with the setpoint.
The pressure is shown instead of the volumetric flow for the VRP-M [STP], in other words a room or air duct pressure application. P nom
, P min
, P max
appear in place of nom
, min
, max
.
The volumetric flow and the differential pressure at the sensor [Pa] are shown for the VRD3 and the VRP-M.
4 / 8 T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes www.belimo.com
ZTH-VAV Operating instructions VAV adjustment tool
Functions
Damper position [0 … 100 %]
(Read only)
[AUTO / CLOSE / OPEN /
Select CAV step min
/ max
/ STOP]
(Read / write)
(Continued)
The position is shown in the following cases:
– Synchronisation, adaption:
– VAV controller without position feedback 1)
1) VRD2, VRD3, VRP-M with NM24-V-ST)
max
0%.
0%
(Damper) OPEN
(Motor) Stop
CLOSE
Volumetric flow [% nom
]
The following operating modes are available
Change mode [0 … 10 / 2 … 10 V]
(Read only)
min
The CAV steps shown opposite, also referred to as operating modes, can be used to test VAV / CAV units for
L/N/SMV-D2-MP, L/NMV-D2LON, VRD3 and VRP-M. By activating a CAV step, you set the VAV controller to a fixed operating mode. The temporarily selected volumetric flow setpoint is indicated in the setpoint display.
If the ZTH-VAV is disconnected from the VAV controller, the controller is reset to automatic mode (control function) within two minutes.
Step Function
AUTO Setpoint of input 3 (w/y) or MP master active
CLOSE Damper closes
OPEN Damper opens
min
max
Controller operates with volumetric flow
Controller operates with volumetric flow
STOP Damper stops in current position min max
Control function
VAV or CAV mode
No control mode
No control mode
CAV mode min
CAV mode max
No control mode
Available with
VRD3, VRP-M xMV-D2-MP xMV-D2LON
The mode function can be used to adapt the setpoint input and the actual value output signal to the application or controller.
Note:
By changing the mode, you change the operating behaviour of the VAV controller. The mode should therefore only be changed if absolutely necessary and only by suitably trained personnel.
Restore min
/ max
defaults
[yes / no]
(Write)
Operating volumetric flow min
[0 … 100 % nom
(Read / write)
]
Note
In order to change the min
/ max
setting of a
VRD3, both potentiometers must be in the Tool position. If this is not the case, it is only possible to display the parameters with the ZTH-VRD3.
Refer to the VRD3 product documentation, www.
belimo.com.
The original min
/ max
values set by the unit manufacturer (OEM) are restored.
All values set in the meantime are overwritten by the original values.
min
input in percent [
– Old VAV devices 1)
– New VAV devices
:
2) : nom
setting 0 m 3 /h, l/s] for as a percentage of max as a percentage of nom
The ZTH-VAV detects the min
reference of the connected controller and displays it accordingly.
1)
VRD2, VRP-M up to V2.16, NMV-D2, L/NMV-D2M
2) VRD3, VRP-M from V3.x, L/N/SMV-D2-MP, L/NMV-D2LON
Minimum setting limit *) Oversizing of the VAV units can make control more difficult in the lowest differential pressure range. A minimum volumetric flow, usually corresponding to a differential pressure of ~2 ... 5 Pa, is therefore specified for these units by the manufacturer.
Functional restrictions in this range can be avoided by complying with the unit manufacturer‘s volumetric flow setting.
min
setting 0 m 3 /h or 0% If the damper needs to be shut off by means of a 0.0 V setpoint signal in VAV mode, this can be achieved by setting min
0 m 3 /h or 0 %.
Operating volumetric flow
[30 … 100 % max nom
(Read / write)
] www.belimo.com
T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes 5 / 8
ZTH-VAV Operating instructions VAV adjustment tool
Functions
nom
setting on the VAV unit
(Read only)
Note
The VRD2, VRD3 and NMV-D2 do not support the display of nom
as absolut value. nom
equals to 100%.
∆p @ nom
(Read only)
VAV-Compact L/N/SMV-D2-MP:
«Open Loop» mode
(Continued)
When the VAV unit is calibrated, the unit manufacturer stores a displayed value in m 3 /h or l/s for the differential pressure at nom
. This value is used to indicate the actual volumetric flow on a display unit or on the higher-level control system of a bus system.
If no displayed value for nom
is stored for the VAV controller (ZTH-VAV ¦ nom
: 100%), the operating volumetric flow values min
and max
are shown and entered in percent.
This parameter describes the pressure difference (Pa) at nominal volumetric flow nom
, measured to the D3 sensor.
The ∆p @ nom
parameter is set by the VAV unit manufacturer when the unit is calibrated and cannot be altered by the user.
If a VAV-Compact is programmed as an open-loop controller, VAV control is deactivated. In this case, the Compact device acts as a remote actuator and sensor unit for an external VAV controller.
– The actual volumetric flow and the damper position are indicated correctly.
– It only makes sense to display the setpoint in this application, however, if nom
is set to 0 m 3 /h or l/s, i.e. display ZTH-VAV ¦ nom
: 100%.
Connection
Local service socket
Connection to
L/N/SMV-D2-MP
L/NMV-D2LON
L/NMV-D2M, CR24
VRP-M
Cable type and order designation
ZK1-GEN Included with ZTH-VAV
ZK1-VAV
ZK4-GEN
Accessory
Accessory
ZK4-GEN
Blue
1
2
3
5
GND
~ / +
PP
VRD3 ZK6-GEN Accessory
Connecting terminals
Cable type and order designation Connection to
L/N/SMV-D2-MP
L/NMV-D2LON
L/NMV-D2M
NMV-D2, VRD2
VRD3, VRP-M
ZK2-GEN
White
Blue
Turqu.
1
2
3
5
GND
~ / +
PP
White
Blue
Turqu.
1
2
3
4
GND
~ / +
PP
ZK2-GEN wiring assignment
PP (Turqu.)
+ / ~ (Blue)
GND (White)
6
4
5
3
2
1
ZK2-GEN
ZTH-VAV
5
6
4
3
2
1
PP
+ / ~
GND
6 / 8 T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes www.belimo.com
ZTH-VAV Operating instructions VAV adjustment tool
Supply voltage test for VAV controllers (AC/DC 24 V)
Safety notes
The ZTH-VAV must only be used to test
AC 24 V supply voltages (III safety extra-low voltage) downstream of a safety isolation transformer. The measurement/use for this purpose is only permitted in conjunction with a
Belimo VAV controller.
All other forms of use are prohibited!
!
Maximum measuring voltage
Maximum measuring voltage AC 30 V / DC 42 V.
Higher voltage levels are liable to damage the device beyond repair!
The ZTH-VAV can be used to test the AC 24 V supply voltage of the VAV controllers in conjunction with the ZK2-GEN connecting cable.
Measuring the AC 24 V supply voltage with the ZTH-VAV helps pinpoint the cause of a malfunction, e.g. when the system is started up.
To test the supply voltage Equipment:
Connection:
Start:
Exit:
ZTH-VAV, ZK2-GEN
– Connect the free wires of the ZK2-GEN to AC 24 V.
• White to GND (terminal 1 on the VAV controller)
• Blue to ~ (terminal 2 on the VAV controller)
• Do not connect the third wire (turquoise)
– Do not connect the RJ11 plug to the ZTH-VAV for the time being!
– Keep the (OK) button pressed while you connect the ZTH-VAV to the VAV controller
– Using the arrow key (▼) select «Supply»
Disconnect the ZTH-VAV from the VAV controller or select «leave config-menu» (Set)
Display format
Supply
AC 24 V VHW: okay
88%
Supply voltage quality
Half-wave ratio (only indicated for AC 24 V)
Measured AC or DC value in volts
Supply
AC 25 V
AC voltage (AC 24 V)
VHW: okay
88%
Quality: okay: AC supply in the range from 19.2 to 28.8 V
AC value: Measured AC voltage (accuracy: ±1.0 V, if VHW >95%)
VHW: Ratio of the positive half-wave to the negative half-wave
The difference between the positive half-wave value and the negative half-wave value must not be too large.
Rule of thumb: Pos. HW / neg. HW x 100 must not be >80%.
Explanation of VHW
AC 24 V supply
In practice, most field and control devices use half-wave rectifiers for their internal supply voltage.
• Advantage: Straightforward wiring and connections.
• Disadvantage: Only the positive half-wave is loaded.
Standard voltmeters always indicate the effective value for both half-waves.
The determining value for each of the two halfwaves can only be indicated on an oscilloscope or the ZTH.
21.2 V
VAC p n
U pos. half-wave neg. half-wave
Potential problems
The half-wave load is influenced if:
• The transformer is too small
• The cable between the transformer and the VAV controller is too long
DC voltage (DC 24 V) A voltmeter should be used to test a DC 24 V installation.
..
..
..
Restriction The supply voltage cannot be tested if the ZTH-VAV is connected to the service socket of the
VAV or CR24 controller (transformed DC voltage).
www.belimo.com
T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes 7 / 8
ZTH-VAV
Accessories
Operating instructions VAV adjustment tool
Dimensions [mm]
Dimensional diagrams
Cable type and order designation Compatible with
ZK1-GEN
• LMV-D2-MP, LHV-D2-MP
• NMV-D2-MP
• SMV-D2-MP
• LMV-D2LON, NMV-D2LON
ZK1-VAV
• LMV-D2M
• NMV-D2M
• CR24-B1/B2/B3
ZK2-GEN
Remarks
Included with ZTH-VAV
1)
All VAV controllers connected via connecting terminals
1)
1) weiss blau türkis
Stecker 3-polig
ZK4-GEN VRP-M blaue Ader
GND
~ / +
PP
24 V
~ / +
1)
ZK6-GEN VRD3
1) Available as accessories
85 23
Headquarters
BELIMO Holding AG
Brunnenbachstrasse 1
CH-8340 Hinwil
Tel. +41 (0)43 843 61 11
Fax +41 (0)43 843 62 68 [email protected]
www.belimo.com
8 / 8
Subsidiaries, Representatives and Agencies
Australia
Bahrain
Belgium
Bosnia-Herzegovina
Bulgaria
Croatia
Cyprus
Czech Republic
Denmark
Egypt
Estonia
Finland
France
Great Britain
Germany
Greece
Hong Kong
Hungary
Iceland
India
Indonesia
Ireland
Israel
Italy
Japan
Jordan
Kuwait
Latvia
T4-ZTH-VAV • en • v1.2 • 03.2009 • Subject to changes
Lebanon
Liechtenstein
Lithuania
Luxembourg
Malaysia
Morocco
Netherlands
New Zealand
Norway
Oman
Pakistan
People’s Republic of China
Philippines
Poland
Portugal
Qatar
Republic of Korea (South Korea)
Rumania
Russia
Saudi Arabia
Singapore
Slovakia
Slovenia
South Africa
Spain
Sweden
Switzerland
Taiwan
Turkey
Ukraine
United Arab Emirates www.belimo.com
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project