Pulse Input Module 2/2 I/O Modules 2-channel pulse/quadrature input 8123-PI-QU

Pulse Input Module 2/2 I/O Modules 2-channel pulse/quadrature input 8123-PI-QU
2/2 I/O Modules
Pulse Input Module
2-channel pulse/quadrature input
8123-PI-QU
Hazardous area
Zone 0 / Div 1
• 2 input channels with power supplies
or single quadrature input
• 1 Hz to 50 kHz signal capability
• Frequency & 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
Outputs
Counter, display,
rate meter
Safe area or
Zone 2 / Div 2 hazardous area
Ch1 Ch2
Solenoid, alarm or
other IS device
123.4
IS power
IS power
* For switch-type sensors,
resistors are required for
line fault detection.
NAMUR
gate control
13
15
14
16
11
N/A
12
N/A
5
6
1
7
2
8
3
9
4
10
Input Sensors
4-20mA
3-wire
voltage
pulse
MODULE SPECIFICATION
External
voltage
pulse
2-wire
current
pulse
4-20mA
3-wire
current
pulse
4-20mA
External
current
pulse
Switch
Channel 1 of 2
Railbus
Proximity
detector
See also System Specification
INPUTS
Supply voltage
• 8.1 V (nom.) at 8 mA
PULSE/FREQUENCY
CURRENT
Number of channels
•2
Frequency range
• 50 kHz
• In quadrature mode – 12.5 kHz
Input signal
• 20 mA (max.)
Threshold
• Configurable in 8 levels
OUTPUTS
The outputs are open-collector type for separately
powered devices such as LED clusters, annunciators
or solenoids
Number of channels
•2
OFF state voltage
• 30 V (max)
Accuracy (25°C)
• ± 0.05% of span
Input impedance
• 25 Ω
Temperature Stability
• 0.005% / °C
Open circuit current
• < 0.5 mA
CONTROL GATE (FOR GATING CHANNEL 1 ONLY)
Short circuit current
• > 21.5 mA
Switching thresholds
• 1.2 mA / 2.1 mA
VOLTAGE
ON state current
• 100 mA
Input signal
• 0 - 24 V dc (50 V max.)
Retransmission bandwidth
• 1 – 2000 Hz
Threshold
• Configurable in 8 levels
CONFIGURABLE PARAMETERS
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
GE Intelligent Platforms
Switching hysteresis
• 100 mV
SWITCH
Input voltage range
• 0 – 10 V dc
Input impedance
• 1 kΩ
48
Input impedance
• > 10 kΩ
•
PAC8000 Modular I/O
OFF state leakage current
• 10μA (max)
ON state voltage drop
• <1.0V @ 50 mA
INPUTS
Channel
• Enable / Disable
Sensor type
• NAMUR prox. type (select low / high speed)
• Current pulse input
• Voltage pulse input
• Switch input
2/2 I/O Modules
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 50 kHz.
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)
•1-256
CONTROL DATA (WRITE ONLY)
Counter preset value
• 32 bit signed
• Load preset value = 0 to disable
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
8601-FT-NI
Non-incendive
SAFETY
ISOLATION
Field wiring protection
•Non-incendive
Any channel to Railbus
• 100 V ac
FM and ATEX Cat 3 NON-INCENDIVE
FIELD WIRING PARAMETERS
Between input channels
• None (common 0 V connection)
The following figures are for Gas Groups A/B (IIC)
unless otherwise stated.
Between output channels
• 30 V ac
Current inputs (Ch1 & Ch2)
• Uo ≤ 0.6 V, Io ≤ 0.5 mA, Po ≤ 75 μW
• Ca = 1000 μF, La = 1000 mH
RESPONSE TIMES
Signal change to availability on Railbus
• 25 ms (max.)
POWER SUPPLIES
Railbus current (both channels @22 mA)
• 300 mA (max.)
3-wire current inputs (Ch1 & Ch2)
• Uo 30 V, Io ≤ 102.5 mA, Po ≤ 765.7 mW
• Ca = 0.165 μF, La = 6 mH, La/Ra = 82 μH/Ω
Voltage inputs (Ch1 & Ch2)
• Uo ≤ 5.5 V, Io ≤ 0.58 mA, Po ≤ 0.8 mW
• Ca = 535 μF, La = 1000 mH
Bussed field power
• 20 mA @ 24 ± 10% V dc
3-wire voltage inputs (Ch1 & Ch2)
• Uo ≤ 30 V, Io ≤ 102.6 mA, Po ≤ 765.8 mW
• Ca = 0.165 μF, La = 6 mH, La/Ra = 82.1 μH/Ω
Power dissipation (both channels @22 mA)
• 2.8 W (max.)
• No load – 2.0 W (max.)
NAMUR inputs (Ch1 & Ch2)
• Uo ≤ 9.1 V, Io ≤ 10.6 mA, Po ≤ 24 mW
• Ca = 20 μF, La = 490 mH
MECHANICAL
NAMUR gate input (Ch1)
• Uo ≤ 9.1 V, Io ≤ 10.6 mA, Po ≤ 24 mW
• Ca = 20 μF, La = 490 mH
Module Key Code
•F2
Discrete outputs (Ch1 & Ch2)
Each pair of field terminals may be considered as nonincendive when connected into a field circuit with the
following parameters
•Vmax=30 Vdc, Imax=100 mA, Ci=0 μF, Li=0 mH
Module width
• 42 mm
TERMINAL ASSIGNMENTS
Count
• 32 bit signed
Class 1, Div 2 or Zone 2
hazardous area
NOTE: Channel 1 counter can also be controlled by control gate
input: 1= start (count), 0 = pause
Counter (channel 1)
• Start (count) / pause
Frequency
• 16 bit unsigned
8602-FT-ST
Standard
General purpose
Counter commands
• Start / stop / reset
Weight
• 260 g
PROCESS VALUES
Recommended
Field Terminal
Field Wiring
AUXILIARY DISCRETE INPUT
DYNAMIC DATA (READ ONLY)
FIELD TERMINALS
Counter alarms
• Preset value reached
Terminal
LED INDICATORS
Description
POWER - Green LED
1
Current input
OFF
ON
FLASHING
2
Voltage input
3
Power failure
Power OK
Not Applicable
NAMUR input
4
Common
5
Power supply +ve
6
Power supply + ve
7
Current input
8
Voltage input
9
NAMUR input
10
Common
11
NAMUR gate/control input
12
Common
13
Output +ve
14
Output -ve
15
Output +ve
16
Output -ve
Channel #1
FAULT - Red LED
OFF
In running state
ON
FLASHING
Fault
Awaiting module
training
Channel #2
PULSE INPUT CHANNEL - Yellow LED
Channel #1
Channel #2
OFF
ON
FLASHING
Channel inactive
Channel active and
operating normally
Channel active but in
alarm condition
DIGITAL OUTPUT CHANNEL - Yellow LED
OFF
ON
FLASHING
Channel inactive
Channel active and
operating normally
Not applicable
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