CTI MVE Manual de usuario
Installation and Operation Manual
MVE
VEHICLE EMISSIONS MODBUS CONTROLLER
2MVE
Warning
Use this product only in the manner described in this manual.
If the equipment is used in a manner not specied by CTI, the
protection provided by the equipment may be impaired.
This equipment should be installed by qualied personnel.
For technical support, contact:
CTI
920 N Tradewinds Pkwy
Columbia, MO 65201
phone: 866-394-5861
email: [email protected]
website: ctigas.com
MVE 3
Table of Contents
1. General description ..................... 4
2. Installation ............................. 5
2.1 Installation guidelines ................ 5
2.2 Dimensions ........................ 5
2.3 Wiring ............................. 6
Wiring Guidelines ................. 6
AC Power Wiring .................. 6
Communication Wiring ............. 6
Device Power Wiring ............... 7
Relay Output Wiring ............... 7
Network Layout Example ........... 8
MVE terminals & board layout ...... 10
3. Operation ............................. 12
3.1 Power-up.......................... 12
3.2 Programming the Controller .......... 12
Preparation ..................... 12
Navigating the screens ............ 13
Menu Tree Outline. . . . . . . . . . . . . . . . 13
Quick Start Guide................. 14
Login to Utlilities ................. 14
Discover Mode ................... 15
Sensor Conguration ............. 16
Relay Conguration............... 17
Analog Output Conguration ....... 18
Date & Time Conguration ......... 19
Export/Import Data ............... 20
Update Software ................. 21
Calibration Timer................. 22
Factory Reset .................... 23
3.3 Home Screen ...................... 24
System Status. . . . . . . . . . . . . . . . . . . . 24
Sensor Status Table............... 24
Responding to an Alarm ........... 25
3.4 Status Screens (viewable only) ........ 26
Unit Info ........................ 26
Unit Status ...................... 27
Sensor Info ...................... 28
Relay Info ....................... 29
Relay States ..................... 30
Analog Output Info ............... 31
Event Log ....................... 32
Software Info .................... 33
Service Required Screen ........... 34
3.5 Startup Test........................ 35
4. Maintenance .......................... 36
5. Specications .......................... 37
6. Warranty .............................. 38
4MVE
1. General Description
The MVE is a Modbus gas detection controller specically
designed for use with the DuoSense-M CO/NO2 gas
detectors and MVFD fan controllers. It has four RS-485
Modbus channels and can handle up to 255 devices.
It has an onboard 24Vdc power supplies to provide power
for the controller, gas detectors and audible/visual devices.
The color LCD touchscreen provides an at-a-glance status
of gas concentrations and alarms.
The MVE control panel is assembled into a wall mounted
enclosure designed for indoor locations only. The
DuoSense-M CO/NO2 gas detectors can be installed up to
4,000' from the controller.
The eight programmable onboard relays have on/o time
delays and can be programmed to be silenceable, latching
and normally energized.
Analog outputs of the MVFD devices can be congured on
the MVE controller to control exhaust fans.
All operator functions are performed from the
touchscreen on the front of the panel.
MVE 5
2. Installation
2.1 Installation Guidelines:
Locating the MVE Control Panel
• The important consideration when installing the MVE
control panel is that it must be easily accessible for
operating personnel.
• Mount controller indoors on a solid surface with minimal
vibration. If mounting on a wall with studs, the mounting
• screws should be screwed into the studs.
• Mount controller through the holes in the mounting
anges.
• Mount controller in a general-purpose location only. Do
not install in a hazardous environment.
• Mount controller away from electromagnetic
interference.
• Protect controller from physical damage.
2.2 Dimensions:
6.2" deep
12.125"
19.5"
14.5" 13.125"
6MVE
2.3 Wiring:
Wiring Guidelines:
• Electrical wiring must comply with all applicable
codes
• Use stranded, copper wire/cable with a minimum of
167°F rating (75°C rating).
• Always use insulated, stranded, shielded copper cable
for all communication cables. Refer to individual device
manuals for wiring instructions.
• Do not pull communication wiring with AC power cables.
This can cause electrical interference.
• Use only the existing conduit hole for connections to
each device.
• Bonding between metallic conduit connections is not
automatic with the non-conductive enclosure. Separate
bonding must be provided.
• During installation, cover conduit holes and close the
enclosure cover to prevent debris from falling into the
equipment.
AC Power Wiring:
• Power should be provided by a dedicated 15A circuit
breaker. It is recommended that the circuit breaker be
located near the equipment, and clearly marked as the
disconnect for the MVE gas detection control panel.
• See Specication on page 37 for requirements.
L N
Line
Neutral
Earth Ground
• For 200-240Vac input voltage, the input voltage selector
switch must be switched. The factory setting is 100-
120Vac. It is located on the side of the right power
supply. See illustration on page 11. Red circle shows
location of switch. The switch is located behind the
protective cage of the power supply, but is accessible by
using a small screwdriver or pointy object.
Communication Wiring:
The MVE controller has four Modbus communication
channels. Up to 255 devices can be installed on the MVE,
distributed among the four channels.
It is recommended to pull 24Vdc power cable with the
communication cables. These cables can share the same
conduit.
• RS-485 communication cable, 22-24 AWG, 2 conductor,
twisted pair, shielded, stranded, with drain wire (Alpha
Wire 6460 or Quabbin 8302 or equivalent)
• 4,000 ft max per channel.
• For optimum performance, it is recommended that no
more than 128 devices are connected on any of the four
channels.
• For optimum performance, CTI recommends that the
MVE controller is always at the end of the line. When the
MVE controller is at the end of the line, the EOL switches
should always be set to the ON position.
• Avoid splices and T-taps. All terminations should be
made at network device wire terminals
• Wire shields must be connected at all shield terminals,
creating a continuous shield run from the controller to
the device at the end of the line.
B A GND SHLD
To rst device
SHIELD
not used
A
B
COM 1
Terminal Block Plug (Field Wiring):
SHLD: To shield terminal of rst network device.
GND: Not used
A: To RS-485-A terminals of rst network device.
B: To RS-485-B terminals of rst network device.
See DuoSense-M and MVFD installation manuals for more
details on communication wiring.
Each device has a communication port with two terminals,
A and B. In these two terminals, the communication
cable is connected so that all the devices that take part in
the communication are connected in parallel. All of the
‘A’ terminals must be connected together and all the ‘B’
terminals must be connected together, respectively.
MVE 7
Device Power Wiring:
24Vdc power is provided by the onboard 24Vdc power
supply in the MVE controller. Additional power supplies
can be added on the Modbus channels distributed
throughout the network as needed.
• Use 18 AWG, 2 conductor, shielded, stranded cable with
a drain wire (General Cable C2534A or Belden 8760 or
equivalent)
See DuoSense-M and MVFD installation manuals for more
details on device power wiring.
Caution:
To prevent excessive voltage drops and/or power supply
overloads, careful consideration should be taken to take
into account all 24Vdc devices on the power supplies.
This includes gas detectors, audio/visual devices, etc.
See Specications on for maximum current draw for all
devices.
If the supply voltage drops below a devices minimum
supply voltage at any device on the network, a power
supply should be added at that point on the power cable.
When utilizing the 24Vdc supply for any connected MVFD
relays for external devices (horn-strobes, fan controllers,
etc.), make sure all device's minimum supply voltage is
maintained under full load (all devices active).”
24V GND SHLD
To rst device
PWR
SHIELD
GND
24VDC
Terminal Block Plug (Field Wiring):
SHLD: To shield terminal of rst network device.
GND: To ground terminal of rst network device.
24V: To 24Vdc terminal of rst network device.
Relay Output Wiring:
There are nine relay outputs local to the MVE. One is
designated as the Fault Relay, while the other eight are
general purpose, user congurable relays.
• AC wiring must be run in separate conduit from the
sensor cables.
• All relays have Form C dry contacts, and are rated 5A
@ 24Vdc or 8A @ 240Vac (dry contacts require external
power).
• The fault relay is normally energized. It will trip upon loss
of power or hardware failure of the MVE controller.
• Each relay has a status LED to show the state of the
relay.
• When utilizing the onboard power supply of the MVE
controller for power of external devices such as horn/
strobes, make sure the total current draw of all powered
devices does not exceed the current limits on page 37.
• There are two courtesy 24Vdc and ground terminal
blocks amongst the relays. These can be used to provide
power for external devices such as audio/visual devices,
exhaust fan control, etc.
• See Relay Output section in the Setup menu for more
details on relay conguration.
NO C NC
To relay output device
R5
24V 24V GND GND
COURTESY
R5-NC
R5-C
R5-NO
GND
GND
24VDC
24VDC
8MVE
Network Layout Example
MVE 9
10 MVE
MVE Terminals, Ports, Components, and Board Layout
Display
Board
HORN ETHERNET REMOTE
DISP PWR
REMOTE
DISP COM
DISP COMUSB
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