Quintex Cheetah C3 CUB Installation and operation manual

Operating & Maintenance Manual
www.quintex.co.uk
For systems installed with
Vacon 100 Inverters
FEB 2016
Cheetah C3 CUB
Automatic Catering Ventilation Controls
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TABLE OF CONTENTS:
USER/OPERATOR SECTION
PAGE
Overview of system
System Components
3
4
Cheetah Display Unit
5
Variable Frequency Drives
Vacon 100 Keypad Navigation (and Reset)
TECHNICAL SECTION
Vacon 100 Key Settings
8
10
11
Cheetah Input/Output unit
Single Phase (230V) VFD
12
14
Maintenance
15
Error Codes (Cheetah Display)
16
Vacon 100 Fault Codes
17
EC Certificate of Conformity
21
Warranty Information
21
Electrical Schematic Wiring Diagram
22
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SYSTEM OVERVIEW:
System Operation and Design Features
The Cheetah (C3) CUB system is a demand-based energy management system that can be installed to automatically
control commercial kitchen ventilation systems. It is a modular system that can be installed to control multiple
canopies and/or ventilation fans, as required.
The Cheetah system will save energy by controlling the level of ventilation (depending on cooking activity) in
commercial catering environments. This is achieved by continuously measuring the temperature in the extract
canopy duct/s and controlling the extract fan/s and supply fan/s (where applicable), by using Variable Frequency
Drives (Inverters).
Smoke and steam produced by cooking activity is also detected by laser optic sensors fitted to the extract canopy/s.
The Cheetah system will quickly accelerate the ventilation fan/s to maximum speed when smoke or steam is
detected and will continue to run them at full speed for a period of time whilst the smoke and/or steam clears so
that all vapours are fully purged from the canopy/s. After purging the canopy, the system will then return to
operating by temperature control, until the next optic sensor detection. The Cheetah system will always react to the
greatest demand either from temperature, steam or smoke so that conditions in the kitchen are not compromised.
Based on the laws of affinity: a ventilation fan operating at half-speed uses only 13% of the full-speed operating
power, but still moves half the volume of air that it would when running at full-speed. The electricity consumption of
the motors is therefore significantly reduced by running the ventilation fans at lower average speeds.
Further power savings are made from the reduction of conditioned air being unnecessarily extracted through the
ventilation system. Cheetah is designed to be an autonomous system and the fans are set to ramp down to a pre-set
minimum speed when there is little or no catering demand. In most cases, where possible, the pre-set minimum
speed is set to 40% (20Hz) of the maximum operating speed. During normal operation, Cheetah will not stop the
fans, it will only reduce the speed of the fan/s to a set minimum.
The Cheetah system is installed with remote GPRS communications and data-logging facilities. This allows systems
installed at sites to be remotely accessed by Quintex (as required) and the system/s performance operation can be
monitored over a period of time.
Cheetah has been designed so that any fault conditions will cause the connected fans to operate at full-speed (50Hz),
until the issue is corrected. In this way, if a temperature or an optic sensor becomes faulty, the fan/s will run to the
full (set) speed. Similarly, if the connected VFD/s loses digital communications with the Cheetah system, the
connected motors will run at full speed until digital communication is restored.
There is no direct link between Cheetah and a gas interlock system that may be present at a site. However, because
the Cheetah system adjusts fan operating speeds, it can influence the operation of the interlock. As part of the
Cheetah system commissioning process, Quintex will test for the minimum fan speed required to enable the gas
supply, via any interlock system. The minimum speed will always be set above the minimum speed required. Over
time, any site gas interlock system/s should be regularly maintained to ensure that the fan operation detection is
consistent with the operation at the time that the Cheetah system was commissioned. In particular, differential
pressure sensing switches (used by gas interlock systems to sense airflow) can become blocked with contaminants
(grease) and this can cause spurious gas interlock activations unless they are routinely cleaned.
PROTECTION COULD BE IMPAIRED IF THIS PRODUCT IS USED IN A MANNER THAT IS NOT SPECIFIED BY THE MANUFACTURER.
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Cheetah System Components
Display &
Processor
Temperature
Sensors
Smoke / Steam Sensor
(emitter)
Smoke / Steam Sensor
(receiver)
Extract Fan
& Cheetah VFD
Data
Logger
Supply Fan
& Cheetah VFD
Sensor/Processor
The main components of the Cheetah system are:
Component:
Description:
TEMPERATURE SENSORS
Cheetah temperature sensors are (usually) mounted in the extract canopy ductwork.
They are located in the main airflow.
OPTIC SENSORS
Cheetah optic sensors are Class-2 devices that include additional block-detection safety
protection. They are installed in pairs and span the length of a canopy.
DISPLAY UNIT
The Cheetah Display unit provides an operator interface with the Cheetah system.
SENSOR-PROCESSOR UNIT
A Cheetah Sensor/Processor is a local HUB unit into which the relevant temperature
and optics sensor equipment is plugged.
VARIABLE FREQUENCY DRIVE
Typically, the VFD is a Vacon 100 speed controller that is used to vary the speed of the
connected fan, based on the control from the Cheetah system. Other VFDs may be
accommodated with the use of a Cheetah Input/Output unit.
DATA-LOGGER (RCDLU)
The Cheetah Remote Communications Data Logger Unit provides direct
communications to the Cheetah system via a GPRS modem. It can be accessed by the
Quintex technical department.
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CHEETAH DISPLAY UNIT:
GENERAL
The Cheetah Display Unit is usually located in the kitchen. It can be installed on a wall or on the side of an extract
canopy, generally near to the main (primary) extract canopy. When installed on the wall, it is usually mounted at
approximately 2m from the level of the floor (above head height) to prevent accidental damage. The screen on the
Cheetah Display gives a continual view of the operational status of the system.
DISPLAY OPERATION
Quinte
OVERRIDE SCROLL DISPLAY
POWER ON MAX RATE SAVING
ENERGY
Quintex Systems Ltd
Finchampstead RG40 4QQ |www.quintex.co.uk
ALARM HIGH
EXHAUST TEMP
Energy Management Systems Cheetah Energy Control
In normal operation the Cheetah Display LED screen will show the active extract motor power saving that is being
made. It does not show the running speed of the system – running speed/s can be accessed by use of the SCROLL
button. NOTE: the power savings figure shown is disproportional to the running speed of the fan.
If the system detects an error on the system, an error code will display (see section: ERROR CODES - CHEETAH DISPLAY).
POWER ON (LED)
The power light shows that the Cheetah Display Unit (and therefore the Cheetah system) has
electrical power applied to it.
MAX RATE (LED)
The Max Rate light will be on when the system is running at full-speed due to use of the OVERRIDE
button.
ALARM HIGH
EXHAUST TEMP (LED)
The Alarm High Exhaust Temperature is able to be set during the configuration of the system/s. If the
temperature in the duct exceeds the temperature set-point, then the Alarm (LED) will light, and the
display audible alarm will sound.
ENERGY SAVING (LED)
Illuminates when the fans are not operating at full-speed and energy savings are being made by the
system.
OVERRIDE (BUTTON)
When pressed, all of the connected fans will run to full speed. The override will operate for a pre-set
time (one hour set as standard) and thereafter, the system will return to automatic control
(temperature and optical). The OVERRIDE button will also bring the fans on (if they have been timed-off
by the Cheetah system, internal timer function) provided the fans (VFDs) have a power supply to them.
SCROLL DISPLAY
(BUTTON)
Can be used to ‘scroll’ the screen on the Display Unit between all active operating conditions
including: the current (instantaneous) fan running speeds and duct temperatures.
IF REQUIRED: The connected fan/s can be STOPPED (eg. overnight) by pressing both the OVERRIDE and SCROLL buttons (at
the same time). Pressing the OVERRIDE button again, will restart the fan/s.
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SCROLL BUTTON OPERATION.
The Cheetah display unit has various screens that can be accessed in order to view the real-time operation of the system.
Additional operating information can be accessed by pressing the SCROLL button, as shown in the diagram below. Cheetah
systems installed with multiple canopies and/or fans may show more information on the display screen.
POWER SAVING 94%
SYSTEM OK
H1: 27.5 40%
Supply: 40%
POWER SAVING 0%
CODE 32
EXTERNAL CONTROL
SYSTEM HALTED
SCROLL DISPLAY
OVERRIDE SCROLL DISPLAY
SCROLL DISPLAY
FAULT CLEARED
EXTERNAL OVERRIDE ENDS
AUTOMATIC CHEETAH TIMER
CONTROLS START FAN/S
OVERRIDE
OR OVERRIDE BUTTON PRESSED
(short time-out)
(short time-out)
FAULT CONDITION
EXTERNAL OVERRIDE SIGNAL
AUTOMATIC CHEETAH TIMER CONTROLS STOP FAN/S
OR OVERRIDE & SCROLL BUTTONS PRESSED
PRESS SCROLL BUTTON
PRESS SCROLL BUTTON
H1: 37.5 63%
H2: 25.0 40%
Cheetah display screen
showing fault condition
Cheetah system is stopped via an
external control signal
Cheetah display screen
showing active temperature
and current extarct run speed
Cheetah display screen showing active
current supply fan running speed
In more complex system installations, multiple Cheetah
module and fan/s may show on the screen, when scrolled.
The normal operating screen is the DEFAULT screen.
PRESS SCROLL
The operating speed and active duct temperature of canopy (or fan) number 1 is displayed for a short period of time. If
a second fan (or canopy) is installed as part of the system, then it should also be shown.
PRESS SCROLL AGAIN
If installed, Supply (make-up) fan and air-flow information will be shown
In fault conditions, a code will be shown on the screen, refer to Cheetah fault codes section of this manual for further
information. The most common faults are: CODE 16 –network error or CODE 32 –error with Sensor/Processor #1.
For some installations, an external control signal may have been added (wired-in) to the Cheetah system. When the
external control signal activates, the display screen will show EXTERNAL CONTROL.
For some installations Cheetah automatic timing controls may have been requested to be set-up. When the timing
controls activate the fans will stop and SYSTEM HALTED message will be shown on the screen. The same message will
show if the system is manually halted but pressing (and holding) both the OVERRIDE and SCROLL buttons,
simultaneously. Pressing the OVERRIDE button will exit the SYSTEM HALTED condition.
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SYSTEM SET-UP:
GENERAL
During the installation and commissioning of a Cheetah system, the technician will program and configure the
Cheetah system by using specialist software on a laptop computer that is connected to the LonWorks network. The
Cheetah Configurator software is specifically designed to set-up the system parameters, and to assign the correct
LonWorks communications addressing between all of the installed devices and in doing so configures the system.
System components are self-identifying. The main parameters include – individual min. & max. temperature sensor
set-points, optic trigger levels, optic run time, high temperature alarm set-point & override time period. Refer to the
diagram below to understand the capabilities and related parameters associated with each sensor-processor unit.
BASIC CONFIGURATOR OPTIONS
OPTIC RECEIVER
SENSOR/
PROCESSOR
UNIT
OPTICS
OPTICS
T1
T2
T3
T4
OPTIC EMITTER
OPTIC RECEIVER OPTIC EMITTER
TMinStpt[0] MIN TEMP SPAN ( C) Setting of the LOWER (0Hz) temperature set-point
TEMP 1
TEMP 2
TEMP 3
TEMP 4
TMaxStpt[0] MAX TEMP SPAN ( C) Setting of the HIGHER (50Hz) temperature set-point
0
0
TMinStpt[1] MIN TEMP SPAN ( C) Setting of the LOWER (0Hz) temperature set-point.
TMaxStpt[1] MAX TEMP SPAN ( C) Setting of the HIGHER (50Hz) temperature set-point.
0
0
TMinStpt[2] MIN TEMP SPAN ( C) Setting of the LOWER (0Hz) temperature set-point.
TMaxStpt[2] MAX TEMP SPAN ( C) Setting of the HIGHER (50Hz) temperature set-point.
0
0
TMinStpt[3] MIN TEMP SPAN ( C) Setting of the LOWER (0Hz) temperature set-point.
TMaxStpt[3] MAX TEMP SPAN ( C) Setting of the HIGHER (50Hz) temperature set-point.
0
0
OpticsCal[0] OPTIC SENSITIVITY The setting of the percentage drop in optic signal value
required to trigger fans to run to full (set) speed.
OpticsCal[1] OPTIC SENSITIVITY The setting of the percentage drop in optic signal value
required to trigger fans to run to full (set) speed.
OpticsRun OPTICS RUN TIME (s) The setting of the time that fans will run-on for
after the steam and/or smoke has been cleared.
ID: Parameter: Description:
HighGasTemp HIGH TEMP ( C)
ALARM
The temperature at which the high temperature warning
alarm will sound and run the fans to full (set) speed
NOTE: setting to ZERO will disable the alarm function
Cheetah: key sensor parameter adjustments
(24)
(factory default)
(35)
(24)
(35)
(24)
(35)
(24)
(35)
(90)
(5)
(5)
(100)
Bypass OVERRIDE TIME (m) The time that the fans will run at full (set) speed for
when the override button is pressed. (90)
0
Any adjustments can only be made by a trained engineer. Adjustments can be made either; on-site with the
use a laptop installed with the required software and network connection hardware), or remotely - by
Quintex. There are no user-adjustable Cheetah parameters.
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VARIABLE FREQUENCY DRIVES:
Vacon 100:
A Vacon 3-phase AC VFD is used to adjust the speed that ventilation fans run at by changing the frequency of the
electrical supply voltage. Single-phase Vacon20 VFDs are also available when required and are covered later in this
manual.
VFD Installation:
Depending on where a VFD is to be mounted, the correct size and IP (ingress protection) rated device will be
chosen when a system is installed. If a fan motor is upgraded after a Cheetah system has been installed, then a
new (larger) VFD may be required to suit the new ventilation unit.
A VFD mounted to outdoor external (exposed plant) fans needs to be installed in a draft-ventilated cabinet,
ideally near to the Air-Handling-Unit that is being controlled. An IP21 VFD is mounted within the draught-
ventilated enclosure.
An IP54 VFD can be used when the installation is indoors (internal plant). The VFD is mounted to a suitable
structure (wall or frame) without an enclosure.
Each VFD is installed (electrically wired) between any local isolation (if present) and the fan motor. VFDs are
installed as close to the motor as possible in order to reduce issues associated with long lengths of cable and
the high switching frequencies of VFDs.
Vacon 100 - AC Variable Frequency Drive (Inverter)
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The following information shows the part numbers of Vacon 100 VFDs that can be supplied as replacement VFD
units, or as upgrades, when the load of a fan unit has been increased by remedial works. These units are the only
models (installed with specialist application software) that will operate correctly with Cheetah, when installed as a
fully networked (LonWorks) system.
Any replaced VFD will have to be configured into the Cheetah system network by a trained Quintex engineer, with
the appropriate equipment.
Both tables (below) show the same incremental VFD sizes (in the rating column, in BOLD) match this to the motor FLC,
One table is for IP21 units & the other is for IP54 units. Part numbers will be printed on the outside of any new equipment VFD packaging box.
The listed information shows the typical range of VFDs between 1.1kW (3.3A) and 30kW (61A) rated motor power that is commonly supplied.
Larger sizes are available, on request.
VACON 100 IP21
PART NUMBER:
RATING:
POWER:
FRAME SIZE:
VACON0100-3L-0003-5+BM3L+SDC4+WT03+A1134
3.4A
1.1kW
MR4
VACON0100-3L-0004-5+BM3L+SDC4+WT03+A1134
4.8A
1.5kW
MR4
VACON0100-3L-0005-5+BM3L+SDC4+WT03+A1134
5.5A
2.2kW
MR4
VACON0100-3L-0008-5+BM3L+SDC4+WT03+A1134
8.0A
3kW
MR4
VACON0100-3L-0009-5+BM3L+SDC4+WT03+A1134
9.6A
4kW
MR4
VACON0100-3L-0012-5+BM3L+SDC4+WT03+A1134
12.0A
5.5kW
MR4
VACON0100-3L-0016-5+BM3L+SDC4+WT03+A1134
16.0A
7.5kW
MR5
VACON0100-3L-0023-5+BM3L+SDC4+WT03+A1134
23.0A
11kW
MR5
VACON0100-3L-0031-5+BM3L+SDC4+WT03+A1134
31.0A
15kW
MR5
VACON0100-3L-0038-5+BM3L+SDC4+WT03+A1134
38.0A
18.5kW
MR6
VACON0100-3L-0046-5+BM3L+SDC4+WT03+A1134
46.0A
22kW
MR6
VACON0100-3L-0061-5+BM3L+SDC4+WT03+A1134
61.0A
30kW
MR6
VACON 100 IP54
PART NUMBER:
RATING:
POWER:
FRAME SIZE:
VACON0100-3L-0003-5+BM3L+SDC4+IP54+WT03+A1134
3.4A
1.1kW
MR4
VACON0100-3L-0004-5+BM3L+SDC4+ IP54+WT03+A1134
4.8A
1.5kW
MR4
VACON0100-3L-0005-5+BM3L+SDC4+ IP54+WT03+A1134
5.5A
2.2kW
MR4
VACON0100-3L-0008-5+BM3L+SDC4+ IP54+WT03+A1134
8.0A
3kW
MR4
VACON0100-3L-0009-5+BM3L+SDC4+ IP54+WT03+A1134
9.6A
4kW
MR4
VACON0100-3L-0012-5+BM3L+SDC4+ IP54+WT03+A1134
12.0A
5.5kW
MR4
VACON0100-3L-0016-5+BM3L+SDC4+ IP54+WT03+A1134
16.0A
7.5kW
MR5
VACON0100-3L-0023-5+BM3L+SDC4+ IP54+WT03+A1134
23.0A
11kW
MR5
VACON0100-3L-0031-5+BM3L+SDC4+ IP54+WT03+A1134
31.0A
15kW
MR5
VACON0100-3L-0038-5+BM3L+SDC4+ IP54+WT03+A1134
38.0A
18.5kW
MR6
VACON0100-3L-0046-5+BM3L+SDC4+ IP54+WT03+A1134
46.0A
22kW
MR6
VACON0100-3L-0061-5+BM3L+SDC4+ IP54+WT03+A1134
61.0A
30kW
MR6
NOTE: some internal parameters locations (addressing) detailed in the standard Vacon applications manual ARE different
to the functions of the bespoke application to operate with the Cheetah system. Contact Quintex for further advice.
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VACON 100 KEYPAD NAVIGATION (and RESET)
The Vacon Inverters installed with the Cheetah system have a unique, bespoke software-application installed
to allow them to operate with the digital (LonWork) communications of the Cheetah controls. The Inverter
functions are checked during commissioning and should not normally require adjustment. If parameter
adjustment is necessary this should be carried out with reference to the Vacon Instruction Manuals and the key
setting parameters, by trained personnel.
The Vacon Inverter will usually operate displaying the motor running frequency (this is one of the monitoring
screens available to view operational data relating to the drive / motor). If a fault occurs and the VFD stops, the
RESET button can be used to clear the fault and attempt to restart the VFD. Repeated faults/resets should not
be ignored and should be reported.
MODIFYING INVERTER PARAMETER SETTINGS SHOULD ONLY BE DONE BY TRAINED PERSONNEL.
STOP button
Vacon 100 keypad navigation buttons
OK
BACK
RESET FUNCT
START button
BACK/RESET button
FUNCTION
button
UP (arrow) button
OK button
LEFT (arrow) button
RIGHT (arrow) button
DOWN (arrow) button
BUTTON
DESCIPTION:
BACK/RESET
Use it to move BACK in the menu, EXIT the Edit mode, RESET a fault.
UP (arrow)
Use it SCROLL the menu UP, and to INCREASE a value that is being adjusted.
FUNCT
Use it to ACCESS the control page and to CHANGE the control place.
RIGHT (arrow)
Use it to navigate RIGHT in the menu structure.
START
Use it to START the VFD (RUN) – when set to operate in keypad mode.
DOWN (arrow)
Use it SCROLL the menu DOWN, and to DECREASE a value that is being adjusted.
STOP
Use it to STOP the VFD. To restart the VFD (when in FieldBus mode) power-cycle (fully OFF-and-ON).
LEFT
Use it to navigate LEFT in the menu structure.
OK
Use it GO into an active level (or item), ACCEPT a selection.
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VACON 100 VFD KEY SETTINGS:
During the commissioning of a Vacon 100 VFD the installation technician will set each VFD to operate with the motor
to which it has been connected. It is essential that two key parameters are set correctly so that they match the
specifications motor that the VFD is connected to. The key motor parameters are:
Motor Current Limit (P1.7) – is the Motor Current (Overload) Limit, and must be set to the rated motor current
(from motor technical specification plate), plus an added 10%.
As an example,
If the rated motor current [FLC] is 7.2A then the MOTOR CURRENT LIMIT must be set to 7.9A.
Motor Nominal Current (P1.12) – is the Motor Current setting, and is set to the rated motor current (from motor
technical specification plate).
As an example,
If the rated motor current [FLC] is 7.2A then MOTOR NOMINAL CURRENT must be set to 7.2A).
Checking these motor specific VFD parameters (and resetting if applicable) is also required if fan units and/or motors
are replaced. If a fan/motor has been upgraded to a larger size, then a larger (rated) VFD may also be required.
Vacon 100 COMMON CHEETAH PARAMETERS
PARAMETER
DESCRIPTION
DEFAULT
P1.3
Minimum frequency reference
20.00 Hz
P1.4
Maximum frequency reference
50.00 Hz
P1.5
Acceleration Time 1
6.0 s
P1.6
Deceleration Time 2
90.0 s
P1.7
Motor Current Limit
set to motor (FLC+ 10%) A
P1.9
Motor Nominal Voltage
400V
P1.10
Motor Nominal Frequency
50.00 Hz
P1.11
Motor Nominal Speed
1435 rpm (as motor plate)
P1.12
Motor Nominal Current
set to motor (FLC) A
P1.13
Motor Cos Phi
0.85 (as motor plate)
P1.16
Start Function
Flying Start
P1.17
Stop Function
Coasting
P3.2.1
Remote Control Place
I/O control
P3.2.2
Remote/Local
Remote
P3.2.3
Keypad Stop Button
Yes
P3.3.1.9
Keypad Direction
Forward
P3.5.1.15
Run Enable
DigIN Slot0.2
P3.5.3.2.1
Basic RO1 Function
Run
P3.5.3.2.4
Basic RO2 Function
Fault
P3.9.1.4
Undervoltage Fault
No History
P3.9.1.6
Response to FB Comm Fault
Alarm,PresetFreq
P3.9.1.7
Slot Communication Fault
Alarm,PresetFreq
P3.9.1.13
Preset Alarm Frequency
49.99 Hz
P3.9.2.1
Motor Thermal Protection
No Action
P3.9.3.4
Stall Frequency Limit
5.00 Hz
P3.10.1
Automatic Reset
Enabled
P3.10.4
Trial Time
60.00 s
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CHEETAH INPUT-OUTPUT UNIT:
Some ventilation systems have pre-existing VFDs that cannot accept digital (LonWorks) controlled instructions. Other
VFDs, and devices such as EC fans, are not able to be LonWorks controlled. For applications of this type there is the
option of installing a Cheetah Input-Output unit. The Input-Output unit has been specifically designed to convert
digital (LonWorks) communications signals to analogue control signals (it is a D-to-A converter). The Input-Output
unit connects to (and is configured within) the Cheetah BUS network. It will send and receive various basic speed
control signals to a device to which it is connected.
The external device can be directly controlled (for example, it can be wired to a VFD, via the I/O terminals). Or the
control can take place via an intermediate control system, such as a BMS that is already integrated to the applicable
VFD/s. For VFDs that do not have a LonWorks option (for example, a single phase VFD or an EC fan) then the Cheetah
Input-Output unit will provide the necessary D-to-A conversion.
(Refer to the Input/Output unit Overview diagram below to understand the method of control that is employed.
The technicians that install, or replace speed control devices should refer the operating manual of the controlled
device to determine the required terminal connections and operational configuration, in each specific case).
PRIMARY CONTROL – the Analogue Output, the Analogue Input and the relevant Ground connections
MUST be implemented for all Input/Output unit installations for the system to operate correctly.
SECONDARY CONTROL – other connections shown can be made, depending on the system design and the
devices that are being controlled. Sometimes, pre-existing controls mean that secondary controls (such as
the Cheetah enable signal) cannot be implemented.
Cheetah Input/Output Unit Connection Overview
Cheetah
Input/Output unit
ANALOG-OUT
GND
ANALOG-IN
IN-A
IN-B
OUT-B
OUT-A
RELAY-NO
RELAY-CMMN
RELAY-NC
EXTERNAL
DEVICE
THAT IS BEING
SPEED
CONTROLLED
RED
WHITE
BLACK
BLUE
ORANGE
YELLOW
PURPLE
GREY
BROWN
GREEN
Cheetah Reference
(control) Signal.
Return Signal (from
controlled device).
0-10V to controlled device
0-10V from controlled device
Cheetah Power
Loss Relay.
DIGITAL I/O FAULT SIGNAL
DIGITAL I/O ENABLE SIGNAL
DIGITAL I/O FAULT SIGNAL
I/O GROUND
0-10V OUTPUT
DIGITAL I/O OUPUT
DIGITAL I/O INPUT
0-10V INPUT
DIGITAL I/O INPUT
Fault Return Signal.
Cheetah Enable Signal.
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DETAILED DESCRIPTION OF CHEETAH INPUT/OUTPUT TERMINALS:
Analogue OUTPUT (0-10V) control signal
[Available on terminal 6 – (WHITE conductor), with terminal 5 – (BLACK conductor) as the ground]
This output provides the reference signal to an external device and is the commanded (percentage) fan
running speed instruction from the Cheetah system. This commanded speed is based on the sensed
conditions in the catering area.
There is an option (by means of a selector switch, internal to the In-Out unit) to allow for this output signal
to be inverted (10-0V) – however, the connected device that is being controlled will need to be
reconfigured to accept the inverted signal. By doing this a ‘failsafe’ (run to full-speed) will be created if
power to the Cheetah system (Display unit) should ever fail.
Analogue INPUT (0-10V) control signal
[Available on terminal 7 – (RED conductor), with terminal 5 – (BLACK conductor) as the ground]
This input allows the actual return (percentage) fan running speed be fed-back from the controlled device
to the Cheetah system. The actual running speed feed-back should be connected, but in (rare) cases where
this is not possible, the input signal should be linked-back to the output signal for operational continuity of
a controlled supply fan.
Digital Logic ENABLE control signal (OUTPUT)
With this terminal connected to the controlled device, off-and-on controls from the Cheetah Display unit
will enable and disenable (start and stop) the controlled device.
Digital Logic FAULT control signal (INPUT)
With this terminal connected to the controlled device, then a fault signal can be returned to the Cheetah
unit – if a fault occurs.
Power Loss Relay (terminals) –[COMMON, NORMALLY-OPEN & NORMALLY CLOSED
The In-Out unit has terminals available that can be used to monitor the Cheetah system power supply. The
on-board relay will change state when the system is un-powered (on loss of power or broken
connection/cable). For devices that cannot have the control signal inverted, the relay offers a solution.
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SINGLE PHASE (230V) VFD
Single phase motors can be controlled by the Cheetah system with the use of a Vacon20 VFD. The Vacon20 has been specially
adapted to run a single-phase (230V) AC motor. The connections and parameter settings for the installation are shown below.
Alterations to the configuration and parameters should only be made by (or in association with) a trained technician.
VACON
3 GND
Cheetah Input/Output unit connected to VACON 20 VFD
Input/Output unit
ANALOG-OUT
GND
ANALOG-IN
IN-A IN-B
OUT-B OUT-A
RELAY-NO RELAY-CMMN RELAY-NC
NOTE: the internal
relay energises
whenever the Cheetah
network is powered.
Therefore, if power is
lost, then the NC-CMMN
contact is made.
CMMN
NO
NC
WHITE
BLUE
BLACK
ORANGE
RED
10
7
632
1
I/O TERMINAL DESCRIPTIONS:
20
Variable Frequency Drive
Cheetah
RED
WHITE
BLACK
BLUE
ORANGE
YELLOW
PURPLE
GREY
BROWN
GREEN
8 9
2 AI1
13
54 14 15 16 18 20
GREY
PURPLE
DIODE
V
mA
8 DI1
6 24V
18 A0
9 DI2
Vacon 20 COMMON CHEETAH (CUB) PARAMETERS
PARAMETER
DESCRIPTION
DEFAULT
P1.4
Motor nominal current
set to motor (FLC) A
P1.7
Current limit
set to motor (FLC+ 10%) A
P2.2
Start function
1 (Flying start)
P2.3
Stop function
1 (Ramp)
P2.4
I/O Start / Stop logic
0 (forward)
P3.1
Minimum frequency
0Hz
P3.2
Maximum frequency
50Hz
P3.3
Remote cntrl place 1 freq ref
4 (AI1)
P3.5
Preset speed 1
49.99Hz
P4.2
Acceleration time 1
6sec
P4.3
Deceleration time 1
90sec
P5.1
I/O control signal 1
1 (DI1)
P5.2
I/O control signal 2
0 (Not used)
P5.7
Run enable
0 (Not used)
P5.8
Preset speed B0
2 (DI2)
P5.9
Preset speed B1
0 (Not used)
P13.2
Under voltage fault
1 (No response)
If motor WINDMILLING is an issue – causing the fan to run in REVERSE when started – then the following settings can be used:
P2.2
Start function
0 (Ramp)
P4.12
DC current time
2 sec
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MAINTENANCE
Cleaning Optic Sensors
The Cheetah laser optic sensor and related circuit boards are contained within stainless-steel enclosures – with
(internal) dirt-repellent clear covers installed over the laser apertures. It is recommended that the optic sensors are
wiped (with a clean damp cloth) once a week to maintain a ‘clear window’. Sustained direct pressure-jet washing of
the laser aperture cover areas should be avoided.
Cleaning Optic Sensors
The Cheetah system relies on temperature sensors to monitor the temperature in the extract ducts of the ventilation
system. For optimum system performance, it is recommended that the temperature sensors are routinely cleaned
every 6 to 12 months (depending on cooking activity and the resulting contaminant build-up).
To clean the Cheetah system temperature sensor/s use a damp (lightly abrasive) scourer or steel wool to gently rub
the grease and dirt build-up from the end of the temperature sensor. Using a mild detergent to dampen the scourer
can also be beneficial in the cleaning process.
Cleaning of a Cheetah Temperature Sensor, using a scourer.
Cleaning Display unit
The Cheetah display unit can be wiped clean as part of normal kitchen cleaning, as required. Wipe with a mild
detergent.
When cleaning the Cheetah Display unit, do NOT use an aggressive detergent and do NOT spray wash.
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AIR HANDLING SYSTEM:
The Cheetah system relies on the equipment that it is controlling (the extract and supply ventilation air systems) to
be in a good state of operational order so that it can operate at optimum efficiency and produce the best results. It is
expected that the ventilation systems are sufficiently maintained; including regular belt maintenance, duct and filter
cleaning as would be expected for any mechanical ventilation systems. It is important that a ventilation canopy has
all filters in position, and that the filters have a regular cleaning schedule.
ERROR CODES - CHEETAH DISPLAY:
If the Cheetah system identifies an error then an error code will be displayed on the screen. The table below shows
what each error code relates to.
Error Code on LCD:
Error Type:
Code (in binary)
16
Network
00000000 00010000
32
Hood 1
00000000 00100000
64
Hood 2
00000000 01000000
96
Hoods 1 & 2
00000000 01100000
128
Hood 3
00000000 10000000
160
Hoods 3 & 1
00000000 10100000
192
Hoods 3 & 2
00000000 11000000
224
Hoods 3 & 2 & 1
00000000 11100000
256
Hood 4
00000001 00000000
288
Hoods 4 & 1
00000001 00100000
352
Hoods 4 & 2 & 1
00000001 01100000
416
Hoods 4 & 3 & 1
00000001 10100000
448
Hoods 4 & 3 & 2
00000001 11000000
480
Hoods 4 & 3 & 2 & 1
00000001 11100000
Descriptions of error type:
Network error (CODE 16) – Display Unit cannot communicate with one or more of the configured
Cheetah Units. Note that inability to communicate with a VFD is not counted as a network error.
Hood error (various) – The cause of this is inability to communicate with a particular sensor. To
determine which sensor is causing the problem, a trained Cheetah system engineer can interrogate the
system. The value of the variable nvoHdErrors can be inspected either from the configurator or by
remote access by a trained engineer with the correct equipment.
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VACON 100 FAULT CODES
(ABRIDGED)
Fault Code
Fault ID
Fault Name
Possible Cause
How to correct the fault
1
1
Overcurrent
(hardware fault)
Current draw is too high a (>4*I H) in the motor
cable. The possible cause can be one of these:
a sudden heavy load increase
short circuit in the motor windings
motor is not the correct type
parameter settings are not properly
made
Check the VFD loading. Check of the
motor, check of the cables and
connections.
Perform a test run.
Set the acceleration time longer, if
required.
2
Overcurrent
(software fault)
2
10
Overvoltage
(hardware fault)
The DC-link voltage is higher than the limits.
Deceleration time id too short
There are high overvoltage spikes in
the supply
Check the input voltage(s).
Set the deceleration time longer.
Activate the overvoltage controller.
11
Overvoltage
(software fault)
3
20
Earth fault
(hardware fault)
The VFD has detected that that the sum of the
motor-phase-current is not zero
An insulation malfunction in the
cables or in the motor.
A filter (du/dt, sinus) malfunction
Check the motor cables and the motor.
Check the filter.
21
Earth fault
(software fault)
8
600
System Fault
There is no communication between the control
board and the power.
Reset the fault and restart the drive. If
the fault re-occurs again, contact the
Vacon distributor.
601
602
Defective component operation malfunction
603
The voltage of auxiliary power in the power unit
is too low.
604
Output phase voltage does not agree with the
reference. Feedback fault
605
Operation malfunction
606
Software of control unit is not compatible with
software of power unit
607
The software version cannot be read. There is no
software in the power unit. Defective
component. Operation malfunction (power
board or measurement board).
608
A CPU overload
609
Defective component. Operation malfunction
Reset the fault and power cycle the VFD
twice. ( power off, power on)
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8
610
System fault
Defective component. Operation malfunction
Reset the fault and restart the drive. If
the fault re-occurs again, contact the
Vacon distributor.
614
Configuration error, software error. Defective
component (control board), operation
malfunction.
647
Defective component. Operation malfunction
648
Software is not compatible with the application
649
Resource overload. A parameter loading,
restoring or saving malfunction
9
80
Undervoltage (fault)
The DC-link voltage is lower than the limits
supply voltage too low
defective component.
a defective input fuse
the external charge switch is not
closed
NOTE: This fault becomes active only if the drive
is in run state.
Check of the supply voltage(s).
Inspect the electrical network for fault.
If there was a temporary supply voltage
break, reset the fault and restart the
drive.
If the supply voltage is sufficient, there
may be an internal VFD fault.
10
91
Input phase
supply voltage malfunction
a defective fuse or malfunction in the
supply cables
The load must be a minimum of 10 – 20% for the
supervision to work.
Check of the supply voltage(s), the fuses
and supply cable.
(Advanced inspection - Check the
rectifying bridge and the gate control of
the thyristor).
11
100
Output phase
supervision
The VFD has detected that there is no current in
1 motor phase.
a motor or motor cables malfunction
filter (du/dt, sinus) malfunction
Check of the motor cables and check
the motor windings.
Do a check of the du/dt or sinus filter
13
120
AC drive
undertemperature
(fault)
The ambient temperature is too low for
the VFD. Increase the ambient temp, or
relocate the VFD to a warmer position.
14
130
131
132
133
AC drive
overtemperature
(fault, heatsink)
AC drive
overtemperature
(fault, heatsink)
AC drive
overtemperature
(fault, heatsink)
AC drive
overtemperature
(fault, heatsink)
The temperature of the VFD heatsink or the
power board is too low.
NOTE: the temperature limits of the heatsink are
different in across the range of frame sizes.
Check the cooling fan operation.
Check the ambient temperature.
Examine the heatsink for
dust/contaminants.
Measure the flow of cooling air.
Make sure that the switching frequency
is not too high in relation to the
ambient temperature and the motor
load.
15
140
Motor stall
The motor stalled
Do a check of the motor and the load
16
150
Motor temperature
The loading of the motor is too great.
Decrease the motor load. Check of the
motor thermal protection parameters
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17
160
Motor underload
There is not sufficient load on the motor
Check the load. Check of the
parameters. Check of the du/dt and
sinus filters.
19
180
181
Power overload
(short time
supervision)
Power overload
(long time
supervision)
The power of the drive is too high
Decrease the load.
Check the VFD is suitably sized for the
load.
25
240
241
Motor control fault
Fault seen only with a customer specific
application. A malfunction in the start angle
identification
The rotor moves during identification
The new angle does not agree with
the old value
Reset the fault and restart the drive.
Increase the identification current.
See fault history source for more info.
26
250
Start- up prevented
It is not possible to do a start- up of the drive.
When the run request is on, a new software
(firmware or application) a parameter setting or
other file that affects the operation of the drive,
is loaded to drive
Reset the fault and start the VFD.
32
311
Fan cooling
There is a discrepancy between the fan speed
and the speed reference, but the VFD is
operating correctly (this fault only occurs in the
VFD frame sizes MR7 or larger).
Reset the fault and restart the drive.
Clean or replace the fan
312
Fan cooling
The VFD cooling fan has exceeded its operating
lifetime (50k hours).
Replace the fan and reset the lifetime
counter of the fan.
46
662
Real Time clock
The voltage of the RTC battery is low
Replace the real time clock battery
50
1050
AI low fault
1 or more of the available analogue input signals
is below 50% of the minimum signal range. A
control cable is defective or loose. A malfunction
in a signal source.
Replace the defective parts. Check the
analogue input circuit. Make sure AI1
Signal Range parameter is set correctly
51
1051
Device external fault
The digital input signal that is set with
parameter P3.5.1.11 or P3.5.1.12 was activated.
This is a user defined fault. Check the
digital inputs and schematics
52
1052
1352
Keypad
communication
fault
The connection between the control panel and
the drive is defective.
Check the keypad connection.
If applicable, check remote control
panel cable.
53
1053
Fieldbus
communication
fault
The VFD has stopped receiving fieldbus data.
Check the installation and fieldbus
connection.
54
1354
Slot A fault
A defective option board or slot.
Check the option board and slot.
1454
Slot B fault
1554
Slot C fault
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1654
Slot D fault
1754
Slot E fault
66
1366
1466
1566
Thermistor input 1
fault
Thermistor input 2
fault
Thermistor input 3
fault
The motor temperature increased.
Check the motor cooling and the load.
Check the thermistor connection. If the
thermistor input is not used, it has to
linked-through.
If problem persists, contact distributor.
68
1301
Maintenance
counter 1 alarm
The value of the maintenance counter has
exceeded the alarm limit.
Do the necessary maintenance. Reset
the counter. See parameter B3.16.4 or
P3.5.1.40
1302
Maintenance
counter 1 fault
The value of the maintenance counter is higher
than the fault limit
1303
Maintenance
counter 2 alarm
The value of the maintenance counter is higher
than the alarm limit.
1304
Maintenance
counter 2 fault
The value of the maintenance counter is higher
than the fault limit
69
1310
Fieldbus
communications
fault
The ID number that is used to map the values to
fieldbus process data out is not valid
Check the parameters of the fieldbus
data mapping menu.
76
1076
Start prevented
The start command is blocked to prevent the
accidental rotation of the motor during first
power-up.
Reset the drive to start the correct
operation. Parameter settings will
indicate if it necessary to restart the
drive.
For further (full) information relating to Vacon VFD Troubleshooting – refer to the Vacon 100 Application Manual.
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