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GE 8606-FT-RT Field terminal, RTD

From:ABB | Author:Wang | Time :2025-01-09 | 235 visit: | Share:

GE 8606-FT-RT Field terminal, RTD

8223-PI-IS
• 2 input channels with power supplies
or single quadrature input
• 1 Hz to 50 kHz signal capability
• Frequency and acceleration
measurement
• 2 alarm/repeater retransmitted
output channels
• 2- and 3-wire pulse transmitter format
• Pulse counting (with gate control)
• Channels independently configurable
• Open circuit, short circuit and missing
pulse detection
MODULE SPECIFICATION
See also System Specification
PULSE/FREQUENCY
Number of channels
• 2
Frequency range
• 50 kHz
• In quadrature mode – 12.5 kHz
Accuracy (25°C)
• ± 0.05% of span
Temperature Stability
• 0.005% / °C
CONTROL GATE (FOR GATING CHANNEL 1 ONLY)
Switching thresholds
• 1.2 mA / 2.1 mA
Input impedance
• 1 kΩ
Supply voltage
• 8.1 V (nom.) at 8 mA
SENSOR INPUT CHARACTERISTICS
NAMUR 1
Switching thresholds
• 1.2 mA / 2.1 mA
Input impedance
• 1 kΩ
Supply voltage
• 8.1 V (nom.) at 8 mA
CURRENT
Input signal
• 20 mA (max.)
Threshold
• Configurable in 8 levels
Input impedance
• 25 Ω
Open circuit current
• <0.5 mA
Short circuit current
• >21.5 mA
VOLTAGE
Input signal
• 0 - 24 V dc (50 V max.)
Threshold
• Configurable in 8 levels
Input impedance
• >10 kΩ
Switching hysteresis
• 100 mV
SWITCH
Input voltage range
• 0 – 10 V dc
Pulse Input Module
2-channel pulse input
OUTPUTS
The outputs are open-collector type for separately
powered IS devices such as LED clusters, annunciators
or solenoids
Number of channels
• 2
OFF state voltage
• 30 V (max)
OFF state leakage current
• 10μA (max)
ON state voltage drop
• <1.0V @ 50 mA
ON state current
• 100 mA
Retransmission bandwidth
• 1
• 2000 Hz
CONFIGURABLE PARAMETERS
INPUTS
Channel
• Enable / Disable
Sensor type
• NAMUR prox. type (select low / high speed)
• Current pulse input
• Voltage pulse input
• Switch input


Frequency ranges
• 0.1, 0.3, 0.5, 1, 3, 5, 10, 30, 50, 100* kHz
Sample period
• 20 ms to 200 s
Quadrature
• Enable / Disable
Threshold level
• User defined values
Triggering
• Rising edge / falling edge
Filtering
• Off, 1, 5, 20, 100 kHz
Alarms
• Frequency / acceleration
Alarm limits
• High / low
Alarm deadband (hysteresis)
• User defined value
Line fault detect
• Enable / Disable
Channel status
• Active / Inactive
Counter
• Enable / Disable
Counting direction
• Count up / Count down
* While measurements can be made in the upper half of this range,
the stated accuracy applies only to frequencies up to 50kHz.
DISCRETE OUTPUT
Function selection
• Disabled
• High / low alarm
• Acceleration alarm
• Counter preset value reached
• Quadrature output (channel 1 only)
• Scaled retransmission (channel 1 only)
Retransmission scaling (K factor channel 1 only)
• 1 – 25
CONTROL GATE INPUT
Counter (channel 1)
• Start (count) / pause
DYNAMIC DATA (READ ONLY)
PROCESS VALUES
Frequency
• 16 bit unsigned
Count
• 32 bit signed
Acceleration
• 16 bit signed
STATUS VALUES
Frequency / acceleration alarms
• High / low
• missing pulse detect
Line fault detect
• Open / short circuit
Quadrature direction
• 1 = clockwise, 2 = anti-clockwise
Counter alarms
• Preset value reached
CONTROL DATA (WRITE ONLY)
Counter preset value
• 32 bit signed
• Load preset value = 0 to disable
Counter commands
• Start / stop / reset
NOTE: Channel 1 counter can also be controlled by control gate input:
1 = start (count), 0 = pause
ISOLATION
Any channel to Railbus
• 60 V ac
Between input channels
• None (common 0V connection)
Between output channels
• 30 V ac
RESPONSE TIMES
Signal change to availability on Railbus
• 25 ms (max.)
POWER SUPPLIES
Railbus current (both channels @22 mA)
• 300 mA (max.)
Power dissipation (both channels @22 mA)
• 2.8 W (max.)
• No load – 2.0 W (max.)
MECHANICAL
Module Key Code
• F2
Module width
• 42 mm
Weight
• 260 g
SAFETY
Field wiring protection
• [EEx ia] IIC*
* [EEx ia] IIB with BEI Optical Encoder
The following figures are for Gas Groups A/B (IIC) unless otherwise stated.
24V TX supplies (Ch1 & Ch2)
• Uo = 27.4 V, Io = 93.2 mA, Po = 639 m
• Co
= 0.087 μF, Lo
= 4.2 mH
Current inputs (Ch1 & Ch2)
Uo = ± 1.1 V, Io = 53 mA, Po = 15 mW
Ui = 1.1 V, Ii = 50 mA
CO = 1000 μF, LO = 13.1 mH
Voltage inputs (Ch1 & Ch2)
NAMUR inputs (Ch1 & Ch2)
NAMUR gate input (Ch1)
• Uo = 9.6 V, Io = 25 mA, Po = 57 mW
• Ui = 18.2 V, Pi = 333 mW
• Co
= 3.6 μF, Lo
= 56.6 mH
Discrete outputs (Ch1 & Ch2)
• Ui = 30 V, Pi = 333 mW
All circuits combined within one channel
• Uo = 28.5 V, Io = 93.2 mA (or 169mA at 13.4V),
Po = 639 mW,
• Co = 0.078 μF, Lo = 1.28 mH
FM ENTITY PARAMETERS
24V TX supplies (Ch1 & Ch2)
• Uo = 27.4 V, Io = 93.2 mA, Po = 639 mW
• Ca = 0.08 μF, La = 4.1 mH
24V TX supplies (Ch1 & Ch2 connected togther)
• Gas Groups C,E (IIB)
– Uo = 27.4 V, Io = 186.4 mA, Po = 1.28 W
– Ca = 0.67 μF, La = 4.3 mH
Current inputs (Ch1 & Ch2)
• Uo = 1.2 V, Io = 57.4 mA, Po = 17.2 mW
• Ca = 1000 μF, La = 10.6 mH
3-wire current inputs (Ch1 & Ch2)
• Gas Groups C,E (IIB)
– Uo = 27.4 V, Io = 150.6 mA, Po = 656 mW
– Ca = 0.67 μF, La = 6.4 mH
Voltage inputs (Ch1 & Ch2)
• Uo = 9.56 V, Io = 1.0 mA, Po = 2.39 mW
• Ca = 3.7 μF, La = 1000 mH
3-wire voltage inputs (Ch1 & Ch2)
• Uo = 27.4 V, Io = 93.2 mA, Po = 642 mW
• Ca = 0.08 μF, La = 4.0 mH
NAMUR inputs (Ch1 & Ch2)
NAMUR gate input (Ch1)
• Uo = 9.56 V, Io = 11.1 mA, Po = 26.4 mW
• Ca = 3.7 μF, La = 263 mH
Discrete outputs (Ch1 & Ch2)
• Ui = 30 V, Ii = 100 mA
• Ci = 0 μF, Li = 0 mH
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