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Rockwell Automation Publication 1794-IN049E-EN-P - May 2022

FLEX I/O 2-input Frequency Modules Installation Instructions

Specifications

Input Specifications

Attribute

Value

Number of input channels

2

Number of inputs per channel

2 - Frequency and Gate (gate used to establish direction)

Input frequency, max

1…32 kHz w/sine wave; 1…32 kHz w/square wave input

Frequency value, max

32,767 or 3,276.7 (dependent on range)

Input pulse width

20 µs

Resolution/Accuracy

See 

Resolution and Accuracy on page 7

On-stage voltage, min

10V (24V IEC+1 proximity, encoder input or switch inputs)

On-state voltage, nom 

(selected by terminal base connections)

50 mV AC, 28V AC peak - Extended Magnetic Pickup

500 mV AC, 28V AC peak - Magnetic Pickup

< 3V - Vortex Flowmeter low range

> 6V - Vortex Flowmeter high range

 24V DC IEC+1 proximity or encoder input

24V DC Contact Switch input

On-state voltage, max

Limited to isolated 24V DC power supply

On-state current 

min

nom

max

2.0 mA

9.0 mA

10.0 mA

Off-state current, min

1.5 mA into 24V DC IEC+ terminal

Off-state voltage, max

5.0V DC on 24V DC IEC+1 terminal

Wire-off detection

0.4 mA for proximity, encoder, or contact switch with 50 k

Ω

 

shunt resistor

Frequency input impedance

> 5 k

Ω

 for 50 mV Extended Magnetic Pickup

> 5 k

Ω

for 500 mV Magnetic Pickup

> 10 k

Ω

 for 3V Vortex Flowmeter low range

> 10 k

Ω

 for 6V Vortex Flowmeter high range

> 2.5 k

Ω

 for 24V DC IEC+1 proximity or encoder input

> 2.5 k

Ω

 for 24V DC Contact Switch input

Gate input impedance

> 5 K

Ω

 for 50 mV Extended Magnetic Pickup

> 5 K

Ω

 for 500 mV Magnetic Pickup

> 2.5 K

Ω

 for 24V DC IEC+1 proximity or encoder input

> 2.5 K

Ω

 for 24V DC Contact Switch input

Output Specifications

(meets IEC 1A 24V DC output specifications)

Attribute

Value

Number of outputs

2 isolated

Output voltage source

Customer supplied

Output voltage

min

nom

max

10V DC 

24V DC 

31.2V DC 

Off-state voltage, max

31.2V DC 

On-state current

1 mA per output min

1.0 A per channel sourced out of module max

Current Limited - All outputs can be on simultaneously without derating

Surge current

2 A for 50 ms, repeatable every 2 s

Off-state leakage, max

Less than 300 µA at 31.2V DC

On-state voltage drop

0.9V DC at 1 A

Output control

Outputs individually assignable to: Frequency, % Full Scale, or Acceleration Alarm

Output switching time

Triggered by frequency alarm or acceleration alarm

Turn on: Less than 0.5 ms

Turn off: Less than 1 ms

Содержание Allen-Bradley 1794-IJ2

Страница 1: ...Hazardous Location Approval 4 North American Hazardous Location Approval 4 Install Your Frequency Input Module 5 Connecting Wiring for the 1794 TB3G and 1794 TB3GS Terminal Base Unit 5 Resolution and...

Страница 2: ...documenti elencati nella sezione Altre risorse riguardanti l installazione la configurazione ed il funzionamento dell apparecchiatura Gli utenti devono leggere e comprendere le istruzioni di installa...

Страница 3: ...s nonhazardous before proceeding WARNING If you connect or disconnect wiring while the field side power is on an electrical arc can occur This could cause an explosion in hazardous location installati...

Страница 4: ...ust be used only with ATEX IECEx certified Rockwell Automation backplanes Secure any external connections that mate to this equipment by using screws sliding latches threaded connectors or other means...

Страница 5: ...d evenly to seat the module in the terminal base unit The module is seated when the latching mechanism 7 is locked into the module Connecting Wiring for the 1794 TB3G and 1794 TB3GS Terminal Base Unit...

Страница 6: ...annel 1 A 11 A 12 A 7 A 5 A 3 A 8 A 10 A 12 6V AC Vortex A 2 A 1 A 3 A 13 A 14 A 12 3V AC Vortex A 2 A 0 A 3 A 13 A 15 A 12 Gate 24V DC IEC 1 Proximity 3 4 B 24 B 23 B 20 B 25 B 26 B 29 24V DC Contact...

Страница 7: ...1 8 0 0002 200 0 0002 0 0225 0 0227 0 1 0 7 1 7 0 0001 500 0 00008 0 0225 0 02258 0 1 0 7 1 7 0 00004 1000 0 00004 0 0225 0 02254 0 1 0 7 1 7 0 00002 Table 2 Input Map Bit 15 14 13 12 11 10 09 08 07 0...

Страница 8: ...module is in a Faulted condition internal error Table 3 Output Map Dec 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Oct 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0 0 CF SSM FR CH 0 Number of pulses to terminate...

Страница 9: ...Logic Drive On Status OK Off Dark 24V Power Turned Off or 5V Logic Power Problem Solid Green Module OK Normal Operating Mode Solid Red Module Fault Outputs Disabled Table 5 Diagnostic Bit Definition...

Страница 10: ...re off detection 0 4 mA for proximity encoder or contact switch with 50 k shunt resistor Frequency input impedance 5 k for 50 mV Extended Magnetic Pickup 5 k for 500 mV Magnetic Pickup 10 k for 3V Vor...

Страница 11: ...0 1 2 yellow status indicators Out 0 Out 1 logic side Keyswitch Position 1 Wire size Determined by installed terminal base Wiring category 1 2 on signal ports 3 on power ports Wire type Shielded on s...

Страница 12: ...ents EN 60079 15 Potentially Explosive Atmospheres Protection n II 3 G Ex nA IIC T4 Gc DEMKO 14 ATEX 1342501X IECEx IECEx System compliant with IEC 60079 0 General Requirements IEC 60079 15 Potentiall...

Страница 13: ...Rockwell Automation Publication 1794 IN049E EN P May 2022 13 FLEX I O 2 input Frequency Modules Installation Instructions Notes...

Страница 14: ...be collected separately from any unsorted municipal waste Rockwell Automation Support Use these resources to access support information Documentation Feedback Your comments help us serve your documen...

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