SLATE™ brings configurable safety and programmable logic
together into one single platform. The platform can easily be
customized for almost any requirement or application–offering
virtually limitless development opportunities with far less
complexity.
The R8001C6001 Fuel Air Ratio module uses the latest
technology to control up to 4 SLATE actuators and/or 2 Variable
Frequency Drives. The Fuel Air Ratio Control module controls the
relationship between fuel, airflow and flue gas recirculation on a
power burner.
Features
Within the SLATE system, the fuel air ratio module provides:
• Air-fuel ratio control for up to 4 actuators
• Drive 2 Variable Frequency Drives (VFDs)
• RS-485 Modbus communications to communicate to the
actuators and receive feedback
• SLATE actuator torque sizes:
– 50 in/lb (NEMA 1 and NEMA 4)
– 150 in/lb (NEMA 1 and NEMA 4)
– 300 in/lb (NEMA 4)
– 900 in/lb (NEMA 4)
• Up to 24 points
• Field configurable
• Automated actuator endpoint seeking process
• UL Recognized and NFPA acceptable
• Password protected
• Fault information
• Status of four actuator channels
• Unused VFD terminals (Analog Cells) available for general
purpose I/O configuration
• Flue Gas Recirculation (FGR)
• Trim
• Dual Fuel
SLATE™ FUEL AIR RATIO MODULE3
R8001C6001
Page 4
Safety Features
• Class C operating software system
• Fail-safe feedback
• Curve verification algorithms
• Password protected
• Built in self test
• No slope constraints that would limit the steepness of the
curve
• Component anti-swap protection
• Off curve checking algorithm
Specifications
Electrical Ratings
Voltage and Frequency: See Tables 1–5.
Environmental Ratings:
Ambient Temperature:
Operating: -20°F to +150°F (-29°C to +66°C).
Shipping: -40°F to +150°F (-40°C to +66°C).
Underwriters Laboratories Inc. Listed, File: MP268
Factory Mutual
IRI Acceptable
Federal Communications Commission: Part 15, Class A
Must be mounted inside a grounded metal enclosure.
Mounting: DIN Rail (See Fig. 2)
Required Components
R8001A1001 SLATE Base Module
R8001S9001 Sub-Base Module
4 32-00006—03
Page 5
R8001B2001 SLATE Burner Control Module
7-3/32
(181)
2-11/16 (68)
Fig. 1.
Dimensions in in. (mm).
4-19/32 (117)
M35382
Principal Technical Features
The R8001C6001 fuel air ratio module monitors and controls the
air-fuel ratio for combustion applications.
SLATE™ FUEL AIR RATIO MODULE5
R8001C6001
Page 6
LED Array
There are three LEDs on the front of the Fuel Air Ratio module
that provide quick identification of the system status and any
problems that might occur. The status is broadcast to other
modules on the platform bus in case they are affected by the
inoperable modules. See Table 1 for descriptions.
LEDColorDescription
Power
CPU
Fault
Table 1. LED Descriptions.
No lightSystem does not have power
GreenSystem has power
RedNo valid conguration
GreenRunning
RedFault
No lightNo fault
LED Displays
The SLATE system modules have three-character LED displays
used for indicating the module number of the SLATE system.
They also have three-position LED colors to indicate terminal
states as shown in Table 2.
ColorDescription
GreenTerminal is ON or is Normal
RedFault
No lightTerminal is OFF or Not in use
Table 2. Terminal LED Meanings.
6 32-00006—03
Page 7
Select and Reset Buttons
The SLATE system modules have Select and Reset buttons
located on the front of the module and beneath the segment
display. The Reset button is used to clear a lockout and reset the
module. The Select button is used to scroll through the segment
display information.
Installation
WARNING
Fire or Explosion Hazard
Can cause severe injury, death, or property damage.
Verification of safety requirements must be performed
each time a control is installed on a burner to prevent
possible hazardous burner operation.
When Installing This Product
1. Read these instructions carefully. Failure to follow them could
damage the product or cause a hazardous condition.
2. Check the ratings given in the instructions and on the product
to make sure the product is suitable for your application.
3. After installation is complete, check out the product operation
as provided in these instructions.
4. The SLATE module must be mounted in an electrical
enclosure with adequate clearance for servicing, installation
and removal of modules.
SLATE™ FUEL AIR RATIO MODULE7
R8001C6001
Page 8
Wiring
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or equipment damage.
1. Disconnect the power supply before beginning installation to
prevent electrical shock and equipment damage. More than
one power supply disconnect can be involved.
M35383
Fig. 2.
Installing the Fuel Air Ratio Module on the Sub-Base Module.
2. Wiring must comply with all applicable codes, ordinances and
regulations.
3. Wiring must comply with NEC Class 1 (Line Voltage) wiring.
8 32-00006—03
Page 9
IMPORTANT
1. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance
with these instructions, may cause interference for radio
communications. It has been tested and found to comply
with the limits of a Class A computing device of part 15
of FCC rules, which are designed to provide reasonable
protection against such interference when operated in a
commercial environment. Operation of this equipment in a
residential area may cause interference; in which case, the
user, at their own expense, may be required to take whatever
measures are required to correct this interference.
2. This digital apparatus does not exceed the Class A limits for
radio noise, set out in the Radio Interference Regulations of
the Canadian Department of Communications.
3. Cable shield must be terminated to ground at both ends. If
shielded cable is NOT used, use three-wire twisted cable.
WARNING
Fire or Explosion Hazard
Can cause severe injury, death, or property damage.
Disconnect the power supply from the main disconnect
before beginning installation to prevent electrical shock
and equipment damage. More than one disconnect can
be required.
SLATE™ FUEL AIR RATIO MODULE9
R8001C6001
Page 10
FUEL AIR MODULE
4 ACTUATORS
2 VFD (OR LOW V
INPUT/OUTPUT)
UNIVERSAL
LOW VOLTAGE
CELL
UNIVERSAL
LOW VOLTAGE
CELL
ACTUATOR 1
ACTUATOR 2
ACTUATOR 3
ACTUATOR 4
VFD1
VFD2
RS-485
RS-485
RS-485
RS-485
1
2
+
_
3
4
5
6
+
_
7
8
A
9
B
10
C
11
A
12
B
13
C
14
A
15
B
16
C
17
A
18
B
19
C
20
M35284
Fig. 3.
Wiring diagram for Fuel Air Ratio Module.
10 32-00006—03
Page 11
TerminalDescriptionRating
1VFD1 - Cell A (T1)See Tables 2-5 for congu-
ration options
2VFD1 - Cell A (T2)See Tables 2-5 for congu-
ration options
3VFD1 - Cell A (T3)See Tables 2-5 for congu-
ration options
4VFD1 - Cell A (T4)See Tables 2-5 for congu-
ration options
5VFD2 - Cell B (T1)See Tables 2-5 for congu-
ration options
6VFD2 - Cell B (T2)See Tables 2-5 for congu-
ration options
7VFD2 - Cell B (T3)See Tables 2-5 for congu-
ration options
8VFD2 - Cell B (T4)See Tables 2-5 for congu-
ration options
9A1 - A (RS485)---
10A1 - B (RS485)---
11A1 - C (GND)---
12A2 - A (RS485)---
13A2 - B (RS485)---
14A2 - C (GND)---
15A3 - A (RS485)---
16A3 - B (RS485)---
17A3 - C (GND)---
18A4 - A (RS485)---
19A4 - B (RS485)---
20A4 - C (GND)---
21Unused---
22Unused---
Table 3. Terminal Ratings.
SLATE™ FUEL AIR RATIO MODULE11
R8001C6001
Page 12
Terminal FunctionsMinTypical Max Units
T1 Voltage InRange0.0-15.0 VDCRin=1MOhm
Resolution -2.43-mV DC
Null-25.0 -25.0 mV DC
Accuracy -25.0 -25.0 mV DCWhichever is
c
-1.0-1.0%
Range0.0-15.0 VDC10KOhm load
Out
greater
Resolution -4.0-mV DC
Null100.0 -100.0 mV DC
Accuracy -50.0 -50.0 mV DCWhichever is
-1.5-1.5%
Current InRange0.0-25.0 mA DC
greater
a
Resolution -7.4-uA DC
Null-0.5-0.5mA DC
Accuracy -1.5-1.5%0 to 25 mA
b,c
Range0.0-25.0 mA DCMax Load =
Out
Resolution -4.0-mA Ω
500 Ω
Null-0.5-0.5mA DC
Accuracy -300.0 -300.0 uA DC0 to 25 mA
-50-50uA DC4 to 20 mA
T2 Voltage InAmplitude 0.0-15.0 VDC
Trip Point -3.0-VDCComparator
Hysteresis -0.25-VDC
Only
Resolution -0.37-mV DC
Null-25.0 -25.0mV DC
Accuracy -25.0 -25.0 mV DC
T3 Voltage InRange0.0-15.0 VDC
Resolution -0.37-mV DC
Null-25.0 -25.0mV DC
Accuracy -25.0 -25.0 mV DC
Current InRange0.2-25.0 mA DC
Resolution -3.7-uA DC
Null-0.5-0.5mA DC
Accuracy -1.5-1.5%0 to 25 mA
a
T1 input terminal is held at constant 2.5VDC over allowable current
range.
b
Accuracy specification given is for 100 Ω load. Resolution specification
can be converted to mA by dividing out load.
c
Imax=25mA for Vout<10V
Imax=20mA for 10V<Vout<15V
Table 4. Specifications for Basic Cell Functions.
12 32-00006—03
Page 13
Specifications based on worst case over ambient temperatures.
Complex FunctionsMinTypical MaxUnits
Thermocouple
T2 & T3Type JRange-200.01025.0 °C
Resolution -0.1-°C
Accuracy -5.0-5.0°C
Type KRange-150.0 -1000.0 °C
Resolution -0.1-°C
Accuracy -5.0-5.0°C
RTD
T2 &
Type PT100
T3 &
T4
Type PT1000 Range-135.0 -250.0 °C3 wire, 1000 Ω
NTC
T1-
Type 10KRange-40.0b-175.0 °CT4 rated to 0 °C
T3,
T1T4
T1-
Type 12KRange-20.0 -125.0 °CT4 rated to 0 °C
T3,
T1T4
T1-
Type 20KRange-25.0 -150.0 °CT4 rated to 0 °C
T3,
T1T4
a
Shielded cable required for reliable operation in noisy environment.
b
NTC on terminal T4 is rated down to 0 °C.
c
Temperatures refer to sense range.
Table 5. Specifications Cell Complex Functions.
a
Range-135.0 -250.0 °C3 wire, 100 Ω
Resolution -0.5-°C
Accuracy -2.0-2.0°C
Resolution0.5°C
Accuracy -2.0-2.0°C
Resolution -0.1-°C
Accuracyc-2.0-2.0°C-40 °C to 25 °C
-1.0-1.0°C25 °C to 125 °C
-1.5-1.5 %
-3.0-3.0°C125 °C to 175 °C
Resolution -0.1-°C
Accuracyc-2.0-2.0°C-20 °C to 30 °C
-1.0-1.0°C30 °C to 120 °C
-1.5-1.5 %
-3.0-3.0°C120 °C to 125 °C
Resolution -0.1-°C
Accuracyc-2.0-2.0°C-25 °C to 50 °C
-1.0-1.0°C50 °C to 135 °C
-1.5-1.5 %
-3.0-3.0°C135 °C to 150 °C
SLATE™ FUEL AIR RATIO MODULE13
R8001C6001
Page 14
Frequency / PWM
Min Typical MaxUnits
Functions
PWM Out
T1Amplitude5.0-10.0VDCLow output state = 0V
Frequency100.0 -1000.0 Hz
Duty Cycle2.0-98.0%DC0-100% output allowed
Resolution-1.0-%
Accuracy -0.5 -0.5%DC 10V amplitude
Frequency In
T2-T4Amplitude5.0 10.015.0VDC
Range2.0-1000.0 Hz
Min. “on” pulse
-50.0-usec10V amplitude
width (low %DC)
Min. “off” pulse
-130.0-usec10V amplitude
width (high %DC)
Duty
2 – 100 Hz2.0-98.0%DC10V amplitude
Cycle
1000 Hz 5.0 -85.0%DC 10V amplitude
Resolution -1.0-Hz
Accuracy-5.0 -0.0%Whichever is greater
-1.0 -0.0Hz
PWM In
T2-T4Amplitude
a
5.0 10.015.0VDC
Frequency125.0 -500.0 Hz
Min. “on” pulse
-50.0-usec10V amplitude
width (low %DC)
Min. “off” pulse
-130.0-usec10V amplitude
width (high %DC)
Duty
Cycle
125 –
500 Hz
5.0 -90.0%DC 10V amplitude
Resolution -1.0%DC
Accuracy 125 Hz -1.5 -1.5%DC 10V amplitude
500 Hz -7.5 -7.5%DC10V amplitude
a
Trip points = 3.0V +/- 0.25V
Hysteresis Voltage = 0.5V
Table 6. Specifications for Cell Frequency Functions.
14 32-00006—03
Page 15
ConfigurationMinOptimum Range for Performance Max
Thermocouple J -50°C
K -50°C
RTD-135°C
NTC25°C
Current Out4 mA
Voltage: In / Out 2 V
Table 7. Suggested Sensor Selection Based on Application.
1025°C ± 4 °C
1000°C ± 4 °C
250°C ± 2 °C
125°C ± 1°C
20 mA ± .05 mA
10 V0.3 %,
typical
ApplicationRecommended Wire
Size
Communication
Lines
22 AWG two-wire
twisted pair with ground,
or five-wire.
Other terminals18 AWG wire insulated
for voltages and
temperatures for given
Recommended
Part Numbers
Belden 8723
shielded cable or
equivalent.
TTW60C,
THW75C,
THHN90C
application.
Table 8. Recommended Wire Sizes and Part Numbers.
Resistance to Temperature Conversion Tables
Below are the lookup tables for various types of SLATE sensors.
Linear interpolation is used for values that are between the points
that are shown.
10K NTC
OhmsDegrees C
100.000228.199
120.000214.979
144.000202.439
172.800190.526
207.360179.195
248.832168.404
SLATE™ FUEL AIR RATIO MODULE15
R8001C6001
Page 16
298.598158.116
358.318148.295
429.982138.912
619.174121.345
891.610105.213
1283.91890.347
1848.84376.605
2662.33363.862
3833.76052.015
5520.61440.972
7949.68530.653
11447.54620.990
19781.3597.594
34182.189-4.636
59066.823-15.846
102067.470-26.159
176372.588-35.678
304771.832-44.491
12K NTC
OhmsDegrees C
494.600124.750
560.400119.750
726.000109.750
952.30099.750
1266.00089.750
1707.00079.750
2337.00069.750
3252.00059.750
4607.00049.750
16 32-00006—03
Page 17
6652.00039.750
9804.00029.750
12000.00024.750
14770.00019.750
22800.0009.750
36130.000-0.250
58880.000-10.250
98970.000-20.250
20K NTC
OhmsDegrees C
372.200150.000
555.080133.250
842.660117.050
1301.180101.450
2047.50086.400
3284.38071.900
5378.42057.850
8996.68044.250
15345.52031.150
26744.88018.500
47748.9206.250
87148.340-5.550
163394.900-17.000
260844.260-25.000
SLATE™ FUEL AIR RATIO MODULE17
R8001C6001
Page 18
100 ohm RTD
OhmsDegrees C
18.526-200.250
50.064-125.250
88.223-30.250
132.80184.750
174.010194.750
213.822304.750
250.520409.750
280.962499.750
1000 ohm RTD
OhmsDegrees C
185.26-200.250
500.64-125.250
882.23-30.250
1328.0184.750
1740.10194.750
2138.22304.750
2505.20409.750
2809.62499.750
1000 ohm Balco RTD
OhmsDegrees C
779.000-40.000
864.700-15.000
956.90010.000
1044.40032.200
1148.90057.200
1247.30079.400
1350.900101.700
1418.200115.600
18 32-00006—03
Page 19
Type J thermocouple
microVoltsDegrees C
-8000.000-205.214
-7600.000-187.611
-7100.000-169.194
-6300.000-144.092
-5200.000-114.127
-3800.000-80.349
-1900.000-38.715
-700.00013.754
4600.00087.675
12600.000232.778
28400.000517.923
33600.000608.497
38300.000686.565
44300.000781.520
51600.000895.549
56800.000980.638
59500.0001026.230
Type K thermocouple
microVoltsDegrees C
-5000.000-153.736
-4400.000-129.609
-3600.000-101.517
-2600.000-70.403
-1200.000-31.171
-700.00017.529
6500.000159.027
11300.000278.023
17500.000426.066
29000.000696.902
34500.000829.998
39500.000954.713
41600.0001008.307
SLATE™ FUEL AIR RATIO MODULE19
R8001C6001
Page 20
Type T thermocouple
microVoltsDegrees C
-5000.000-166.012
-4200.000-130.434
-3100.000-89.867
-1600.000-43.103
500.00013.280
3100.00074.769
6500.000146.427
10900.000230.361
16500.000328.408
20800.000399.315
Recommended Grounding Practices
Use an Earth ground or a signal ground as described below.
Earth ground (Base, Rectification Flame Amp
Module, other modules optional)
1. Use to provide a connection between the base and the
control panel of the equipment. Earth ground must be capable
of conducting enough current to blow the breaker in the event
of an internal short circuit.
2. Use wide straps or brackets to provide minimum length,
maximum surface area ground conductors. If a leadwire is
required, use 14 AWG copper wire.
3. Make sure that mechanically tightened joints along the ground
path are free of nonconductive coatings and protected against
corrosion on mating surfaces.
Signal ground
Note the 18V system ground is not electrically connected to earth
ground. Follow local codes and appliance recommendations to
determine if this should be connected to earth ground.
20 32-00006—03
Page 21
Recommended wire routing of leadwires
Do not run high voltage ignition transformer wires in the same
conduit with the flame detector or data lines.
Be sure loads do not exceed the terminal ratings. Refer to the
labels or terminal ratings in Table 3.
The SLATE system must be mounted in an electrical enclosure.
When mounting in an electrical enclosure, provide adequate
clearance for servicing, installation and removal of SLATE
modules.
Maximum wire length:
• The maximum leadwire length is 300 feet to terminal inputs
(Control, Running/Lockout Interlock)
• For Remote Bus data lines, maximum cable length depends on
the number of modules connected, the noise conditions and
the cable used. The maximum of all interconnecting wires is
4000 feet.
SLATE™ FUEL AIR RATIO MODULE21
R8001C6001
Page 22
22 32-00006—03
Page 23
SLATE™ FUEL AIR RATIO MODULE23
R8001C6001
Page 24
For more information and detailed instructions on the R8001C6001
32-00006-03
and the entire SLATE system please refer to the SLATE User Guide
located on our website at http://combustion.honeywell.com/SLATE