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NX-HB – NX-series Heater Burnout Detection Unit – Omron Temperature Control Unit

USD $ 1,681.76USD $ 1,759.96

Heater Burnout Detection Unit

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Product
name
Specification Model
CT input section Control output section
Number
of
inputs
Maximum
heater
current
Number
of
outputs
Internal
I/O
common
Maximum
load
current
Rated
voltage
I/O
refreshing
method
Heater
Burnout
Detection
Unit
3539_lu_1_1
4 50 A AC 4 NPN 0.1 A/point,
0.4 A/Unit
12 to
24 VDC
Free-Run
refreshing
NX-HB3101
PNP 24 VDC NX-HB3201

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General Specification

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Item Specification
Enclosure Mounted in a panel
Grounding method Ground to 100 Ω or less
Operating
environment
Ambient operating
temperature
0 to 55°C
Ambient operating
humidity
10% to 95% (with no condensation or icing)
Atmosphere Must be free from corrosive gases.
Ambient storage
temperature
-25 to 70°C (with no condensation or icing)
Altitude 2,000 m max.
Pollution degree 2 or less: Meets IEC 61010-2-201.
Noise immunity 2 kV on power supply line (Conforms to IEC61000-4-4.)
Overvoltage category Category II: Meets IEC 61010-2-201.
EMC immunity level Zone B
Vibration resistance Conforms to IEC 60068-2-6.
5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of 9.8 m/s2,
100 min each in X, Y, and Z directions
(10 sweeps of 10 min each = 100 min total)
Shock resistance Conforms to IEC 60068-2-27. 147 m/s2, 3 times each in X, Y, and Z directions
Applicable standards * cULus: Listed (UL508), ANSI/ISA 12.12.01, EU: EN 61131-2, C-Tick or RCM,
KC Registration, NK, LR

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* Ask your OMRON representative for the most recent applicable standards for each model.

 

Function Specification

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Function Description
Free-Run Refreshing With this I/O refreshing method, the refresh cycle of the NX bus and I/O refresh cycles of
the NX Units are asynchronous.
CT Allocation This function is used to assign each CT input to a corresponding control output.
Reading CT Currents This function reads CT inputs as heater currents or leakage currents.
Heater Burnout Detection This function detects heater burnouts. A heater burnout is detected if the control output is
ON and the heater current is equal to or less than the heater burnout detection current.
SSR Failure Detection This function detects SSR failures. An SSR failure is detected if the control output is OFF
and the leakage current is equal to or greater than the detection current. An SSR failure
is a failure that is caused by an SSR short-circuit.
Time-proportional Output This function controls a control output by using the manipulated variable from the host
controller as a duty ratio. You can also specify the minimum pulse widths and execute
immediate output commands.
Load Rejection Output
Setting
This function performs a preset output operation when the Heater Burnout Detection Unit
cannot receive an output set value due to a communications error between the host and the
Communications Coupler Unit or due to an error on the NX bus.
Load Short-circuit
Protection
This function is used to protect the output circuits of the Heater Burnout Detection Unit
when an external device short-circuits. This function is supported only by the NX-HB3201.

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Heater Burnout Detection Unit

Heater Burnout Detection Unit (NPN) NX-HB3101

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Unit name Heater Burnout Detection Unit Model NX-HB3101
Number of
points
4 CT inputs and 4 control outputs External
connection
terminals
Screwless Clamping Terminal Block
(16 terminals)
I/O
refreshing
method
Free-Run refreshing
Indicators TS indicator and output indicators
3539_sp_3_1
CT input
section
CT current
input range
0 to 0.125 A Control
output
section
Internal I/O
common
NPN
Input
resistance
Approx. 2.7 Ω Control period 50 to 100,000 ms
Connectable
CTs
E54-CT1 and
E54-CT3
Manipulated
variable
0% to 100%
Resolution 1 ms
Rated voltage 12 to 24 V DC
Maximum
heater
current
50 A AC Operating load
voltage range
10.2 to 28.8 VDC
Resolution 0.1 A Maximum load
current
0.1 A/point, 0.4 A/Unit
Overall
accuracy
(25°C)
±5% (full scale)
±1 digit
Maximum inrush
current
1.0 A/point max., 10 ms
Leakage current 0.1 mA max.
Influence of
temperature
(0 to 55°C)
±2% (full scale)
±1 digit
Residual voltage 1.5 V max.
Disconnection/
short-circuit
detection
None
Conversion
time
10 ms Protective
functions
None
Dimensions
(mm)
12 × 100 × 71 mm (W×H×D) Isolation
method
Between control outputs and Internal
circuits: Photocoupler isolation
No isolation between Internal circuits
and CT inputs
Insulation
resistance
20 MΩ min. between isolated circuits (at 100 VDC) Dielectric
strength
510 VAC between isolated circuits for
1 minute with a leakage current of
5 mA max.
I/O power
supply
method
Supplied from the NX bus. Current
capacity of
I/O power
supply
terminals
IOV: 0.1 A max. per terminal
NX Unit
power
consumption
• Connected to a CPU Unit
1.05 W max.
• Connected to a Communications Coupler Unit
0.75 W max.
Current
consumption
from I/O
power
supply
20 mA max.
Weight 70 g max.
Circuit
configuration
3539_sp_3_2
Installation
method and
restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection
diagram
3539_sp_3_3

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Heater Burnout Detection Unit (PNP) NX-HB3201

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Unit name Heater Burnout Detection Unit Model NX-HB3201
Number of
points
4 CT inputs and 4 control outputs External
connection
terminals
Screwless Clamping Terminal Block
(16 terminals)
I/O
refreshing
method
Free-Run refreshing
Indicators TS indicator and output indicators
3539_sp_4_1
CT input
section
CT current input
range
0 to 0.125 A Control
output
section
Internal I/O
common
PNP
Input resistance Approx. 2.7 Ω Control period 50 to 100,000 ms
Connectable CTs E54-CT1 and
E54-CT3
Manipulated
variable
0% to 100%
Resolution 1 ms
Rated voltage 24 VDC
Maximum heater
current
50 A AC Operating load
voltage range
15 to 28.8 VDC
Resolution 0.1 A Maximum load
current
0.1 A/point, 0.4 A/Unit
Overall accuracy
(25°C)
±5% (full scale)
±1 digit
Maximum inrush
current
1.0 A/point max., 10 ms
Leakage current 0.1 mA max.
Influence of
temperature
(0 to 55°C)
±2% (full scale)
±1 digit
Residual voltage 1.5 V max.
Disconnection/
short-circuit
detection
None
Conversion time 10 ms Protective
functions
Provided.
Dimensions
(mm)
12 × 100 × 71 mm (W×H×D) Isolation
method
Between control outputs and Internal
circuits: Photocoupler isolation
No isolation between Internal circuits
and CT inputs
Insulation
resistance
20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits for
1 minute with a leakage current of
5 mA max.
I/O power
supply
method
Supplied from the NX bus. Current
capacity of
I/O power
supply
terminals
IOV: 0.1 A max. per terminal
NX Unit
power
consumption
• Connected to a CPU Unit
1.05 W max.
• Connected to a Communications Coupler Unit
0.75 W max.
Current
consumption
from I/O
power
supply
20 mA max.
Weight 70 g max.
Circuit
configuration
3539_sp_4_2
Installation
method and
restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection
diagram
3539_sp_4_3

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Additional information

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Dimensions N/A
Model

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