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National Instruments cFP-CTR-500, Operating Instructions Manual, Page: 20 / 23

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National Instruments cFP-CTR-500 Operating Instructions Manual Download Page 20

FP-CTR-500 and cFP-CTR-500

20

ni.com

Maximum output current 
per channel........................................ 1 A (0.75 A for 

cFP-CTR-500 operating 
at 50–60 °C)

Output impedance............................. 0.3 

Ω

Output bandwidth ............................. 16 kHz for a current flow 

≥

3.2 mA

Maximum off-state
leakage current.................................. 25

µ

A

Physical Characteristics

Indicators .......................................... Green 

POWER

 and 

READY

 indicators, 16 green 

input/output state indicators

Weight

FP-CTR-500 ............................... 144 g (5.1 oz)
cFP-CTR-500 ............................. 114 g (4.0 oz)

Power Requirements

Power from network module ............ 800 mW

Isolation Voltage

Channel-to-channel isolation ............ No isolation between 

channels

Transient overvoltage........................ 2,300 V

rms

Environmental

FieldPoint modules are intended for indoor use only. For outdoor 
use, they must be mounted inside a sealed enclosure.

Operating temperature

cFP-CTR-500 ............................. –40 to 60 °C
FP-CTR-500 ............................... –40 to 70 °C

Storage temperature .......................... –55 to 85 °C 

Humidity ........................................... 10 to 90% RH, 

noncondensing

Maximum altitude............................. 2,000 m; at higher altitudes 

the isolation voltage ratings 
must be lowered

Pollution Degree ............................... 2

Summary of Contents for cFP-CTR-500

Page 1: ...ounter modules referred to inclusively as the c FP CTR 500 For information about configuring and accessing the c FP CTR 500 over a network refer to the user manual for the FieldPoint network module you are using Features The c FP CTR 500 is a FieldPoint counter module with the following features Eight 16 bit counters with individual count input terminals Four gate input channels configurable as ei...

Page 2: ... Press firmly to seat the FP CTR 500 on the terminal base When the module is firmly seated the terminal base latch locks it into place Figure 1 Installing the FP CTR 500 Installing the cFP CTR 500 The cFP CTR 500 mounts on a Compact FieldPoint backplane cFP BP x which provides operating power to the module Installing the cFP CTR 500 onto a powered backplane does not disrupt the operation of the Fi...

Page 3: ...and for an external power supply to power the output channels and field devices The cFP CB x connector block provides the same connections for the cFP CTR 500 The V and VSUP terminals are all internally connected as are the C and COM terminals Use a 10 30 VDC external power supply for the output channels The power supply must provide enough current to power all of the loads on the output channels ...

Page 4: ...ument show fuses where appropriate Table 1 lists the terminal assignments for the signals of each channel Terminal assignments are also listed on the side panel of the cFP CTR 500 and under the slide in card on the front of the FP CTR 500 Table 1 Terminal Assignments Channel Name Terminal Numbers VIN or VOUT 1 VSUP 2 COM Count Inputs Count Input 0 1 17 18 Count Input 1 2 17 18 Count Input 2 3 19 2...

Page 5: ...ferenced to the C and COM terminals When the voltage across VIN and COM is 10 V or greater current flows through VIN and turns on the optoisolator registering in an ON state for the channel When the voltage across VIN and COM is 6 V or lower current does not flow through VIN and the channel is in the OFF state Ensure that the sourcing output devices have OFF state leakage currents of less than 0 2...

Page 6: ...P and COM terminals that you can use to supply power to field devices You can connect the four output channels to devices with sinking inputs The c FP CTR 500 has sourcing outputs which means that the VOUT terminal provides a path to a voltage supply To next channel c FP CTR 500 V C COM VSUP VIN Input Circuitry Sourcing Output Device 10 30 VDC External Power Supply 2 A max To next channel c FP CTR...

Page 7: ...75 A on any channel In the ON state the effective resistance between the output VOUT and the supply voltage V and VSUP is 0 3 Ω This resistance causes a voltage drop between the external supply voltage and the output voltage Table 2 lists the actual output voltages based on the voltage provided by the external power supply If the external power supply you are using does not provide one of the volt...

Page 8: ...erminal count enter a value from 0 to 65 535 in the Value field The default value is 65 535 When the count input channel exceeds its terminal count the count resets to 0 and triggers any outputs associated with it For more information about associating outputs with a count input channel refer to the Configuring Output Channels section The count input channel also sends a count trigger to the next ...

Page 9: ... Channel 1 to Channel 0 Channel 0 to Channel 7 Channel 7 to Channel 6 and so on If you select this option for all of the channels no counting occurs Gate Source Select Gate Input 0 3 from the Value menu to associate a gate input channel with a count input channel If the count input channel uses one of the external gate inputs counting is enabled when the gate input signal is high and is disabled w...

Page 10: ...Action menu The increment control command increases the count input channel in value by one The reset control command resets the count input channel The control commands ignore the gate source setting and gate input state Configuring Gate Input Channels Channels 8 11 are gate input channels The only difference between the input circuits of the gate input channels and those of the count input chann...

Page 11: ... you configure the Output Source as Discrete Data Output Mode For each output channel select one of the following output modes from the Value menu Toggle Reset Off Toggle Reset On On Pulse or Off Pulse The output modes work only if you select Counter Channel 0 7 for the Output Source The following sections describe the different output modes Toggle Reset Off In Toggle Reset Off mode the output cha...

Page 12: ...ommand to the associated count input channel In Figure 8 the terminal count is 4 Figure 8 Output of a Channel Set to Toggle Reset On Mode On Pulse In On Pulse mode the output channel starts low and goes high when the terminal count is exceeded The output channel returns to low after one count In Figure 9 the terminal count is 4 Figure 9 Output of a Channel Set to On Pulse Mode 0 1 2 3 4 0 1 2 3 4 ...

Page 13: ...d off Detecting a Short Circuit Condition To determine if a channel is in a short circuit condition measure the voltage between the VOUT and VSUP terminals If the voltage is greater than 1 V the channel is in a short circuit condition Correct the problem and reset the circuit Resetting a Channel in a Short Circuit Condition To reset a channel in a short circuit condition determine the cause of the...

Page 14: ...s the pulse counter The pulse counter is the output source for the output channel Figure 11 shows the components of a continuous pulse train Figure 11 Continuous Pulse Train Step 1 Set Up the Prescaler Counter To set up the prescaler counter complete the following steps 1 If you do not need to scale the frequency of your clock input you can configure the pulse counter to use the clock input direct...

Page 15: ...clock by 5 If you use the 1 kHz reference as the prescaler count source this setting generates a 200 Hz clock for the pulse counter To determine the frequency of the prescaler output use the following formula where fpre is the frequency of the prescaler counter output fsrc is the count input frequency for the prescaler counter termpre is the terminal count value for the prescaler counter Step 2 Se...

Page 16: ...e for the pulse counter Step 3 Configure the Pulse Train Output Channel To configure the pulse train output channel complete the following steps 1 For the output channel that you selected set the Output Source to the pulse counter channel 2 Set the Output Mode of the output channel To generate a pulse train with variable duty cycle use one of the pulse modes On Pulse or Off Pulse To generate a 50 ...

Page 17: ... network module the green POWER indicator lights and the c FP CTR 500 informs the network module of its presence When the network module recognizes the c FP CTR 500 it sends initial configuration information to the c FP CTR 500 After the c FP CTR 500 receives this initial information the green READY indicator lights and the module is in normal operating mode In addition to the green POWER and READ...

Page 18: ...properly insulated from human contact Do not share the external supply voltages the V and C terminals with other devices including other FieldPoint devices unless those devices are isolated from human contact For Compact FieldPoint you must connect the protective earth PE ground terminal on the cFP BP x backplane to the system safety ground The backplane PE ground terminal has the following symbol...

Page 19: ...se noted 1 Input Characteristics Number of channels 12 8 count 4 gate Input type 10 30 VDC sinking compatible with most 12 and 24 VDC devices Maximum input voltage 30 VDC Input threshold level ON state 10 V OFF state 6 V Input current limiting 5 mA maximum Input bandwidth Count inputs 50 kHz 200 Hz with software enabled lowpass filter Gate inputs 50 kHz Maximum off state leakage current for extern...

Page 20: ...5 1 oz cFP CTR 500 114 g 4 0 oz Power Requirements Power from network module 800 mW Isolation Voltage Channel to channel isolation No isolation between channels Transient overvoltage 2 300 Vrms Environmental FieldPoint modules are intended for indoor use only For outdoor use they must be mounted inside a sealed enclosure Operating temperature cFP CTR 500 40 to 60 C FP CTR 500 40 to 70 C Storage te...

Page 21: ...1 ms half sine 18 shocks at 6 orientations Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use IEC 61010 1 EN 61010 1 UL 3121 1 UL 61010C 1 CAN CSA C22 2 No 1010 1 For UL hazardous location and other safety certifications refer to the product label or to ni com Electromagnetic Compatibilit...

Page 22: ...ref nsf Mechanical Dimensions Figure 13 shows the mechanical dimensions of the FP CTR 500 installed on a terminal base If you are using the cFP CTR 500 refer to your Compact FieldPoint controller user manual for the dimensions and cabling clearance requirements of the Compact FieldPoint system Figure 13 FP CTR 500 Mechanical Dimensions Where to Go for Support For more information about setting up ...

Page 23: ... 694 8521 Canada Toronto 905 785 0085 Canada Vancouver 514 685 7530 China 86 21 6555 7838 Czech Republic 420 2 2423 5774 Denmark 45 45 76 26 00 Finland 385 0 9 725 725 11 France 33 0 1 48 14 24 24 Germany 49 0 89 741 31 30 Greece 30 2 10 42 96 427 India 91 80 51190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9131 0918 Mexico 001 800 010 0793...

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