FP-PWM-520 and cFP-PWM-520 Operating Instructions
Contents
1. C V non A 2 A max i 1 A max Protected Vout 5 VDC or Sourcing 10 30 VDC i Output External Power Supply Figure 3 Wiring the c FP PWM 520 Caution Maximum output current for the cFP PWM 520 is lower than 1 A if the module is operating in the 50 70 C temperature range Refer to the Specifications section for more information and select fuses for the Voyr terminals accordingly Table 1 lists the terminal assignments for the signals of each channel Terminal assignments are also listed on the side panel of the cFP PWM 520 and under the slide in card on the front of the FP PWM 520 FP PWM 520 and cFP PWM 520 4 ni com Table 1 Terminal Assignments Terminal Numbers Channel Vout Vsup COM 0 1 17 2 18 1 3 19 4 20 2 5 21 6 22 3 7 23 8 24 4 9 25 10 26 5 11 27 12 28 6 13 29 14 30 7 15 31 16 32 1 Install a 1 A maximum fast acting fuse on each Voyr terminal 2 Install a 2 A maximum fast acting fuse on each Vsyp terminal Pulse Width Modulator Output Circuit The c FP PWM 520 output channels are optically isolated from the rest of the FieldPoint bank The channels are sourcing outputs with short circuit protection circuitry Sourcing current means that the Voyr terminal provides a path to a voltage supply In the ON state of the output period a transistor is turned on between Voyp and Vout In the OFF2. A FP PWM 520 1A 1A 1A Output impedance eee 0 3 Q typical Pulse width accuracy ceeeeeee 1 3 us any period and duty cycle Physical Characteristics Jndicator soea in Green POWER and READY indicators eight green output state indicators Weight FP PWM 520 oseere 140 g 4 9 oz cFP PWM 520 110 g 3 9 oz Power Requirements Power from network module 1W Isolation Voltage Channel to channel isolation No isolation between channels Transient overvoltage ceseeeeeeee 2 300 V ms FP PWM 520 and cFP PWM 520 10 ni com Environmental FieldPoint modules are intended for indoor use only For outdoor use they must be mounted inside a sealed enclosure Operating temperature ee 40 to 70 C Storage temperature 55 to 85 C HUMIdItY 3 c0eseieeiescdeeeeeeetieees 10 to 90 RH noncondensing Maximum altitude 2 000 m at higher altitudes the isolation voltage ratings must be lowered Pollution Degree sses 2 Shock and Vibration These specifications apply only to the cFP PWM 520 NI recommends Compact FieldPoint if your application is subject to shock and vibration Operating vibration random IEC 60068 2 64 eects 10 500 Hz 5 gins Operating vibration sinusoidal IEC 60068 2 6 eee eteeee teens 10 500 Hz 5 g Operating shock IEC 60068 2 27 ccccecesteeseeeseeeee 50 g 3 ms half sine 18 shocks at 6 orientations 30 g 11 ms hal
3. a Short Circuit Condition To reset a channel in a short circuit condition determine the cause of the condition and disconnect the load from the channel The channel resets automatically when the load is removed Alternatively if completely removing the channel load is not convenient reset the channel in any of the following ways e In FieldPoint software set the duty cycle to 0 The channel resets immediately e Disconnect the external power supply from the c FP PWM 520 e Remove the c FP PWM 520 from the terminal base or backplane Power off the network module connected to the c FP PWM 520 Normal operation can resume after you correct the short circuit condition FP PWM 520 and cFP PWM 520 6 ni com Configuring the Output Channels A c FP PWM 520 output channel uses period and duty cycle settings to determine when the channel is on or off To configure the period complete the following steps in the FieldPoint software 1 In the Channel Configuration dialog box select Period from the Attribute menu 2 Enter an integer between 1 ms 1 kHz and 65 535 ms 0 01525 Hz in the Value field To configure the duty cycle write to the channel for which you want to set the duty cycle The duty cycle is the proportion of time that the PWM signal is ON over the period On Time Period x109 Duty Cycle Enter a value from 0 to 100 to set the duty cycle The duty cycle has 12 bit resolution 4 096 discrete d
4. cabling clearance requirements of the Compact FieldPoint system Dar So lt 107 19 mm gt p 4 22 in 109 5 mm 4 31 in 4 91 44 mm gt 3 60 in RE Figure 6 FP PWM 520 Mechanical Dimensions FP PWM 520 and cFP PWM 520 12 ni com Where to Go for Support For more information about setting up the FieldPoint system refer to these National Instruments documents e FieldPoint network module user manual e Other FieldPoint I O module operating instructions e FieldPoint terminal base and connector block operating instructions Go to ni com support for the most current manuals examples and troubleshooting information For telephone support in the United States create your service request at ni com ask and follow the calling instructions or dial 512 795 8248 For telephone support outside the United States contact your local branch office Australia 1800 300 800 Austria 43 0 662 45 79 90 0 Belgium 32 0 2 757 00 20 Brazil 55 11 3262 3599 Canada Calgary 403 274 9391 Canada Montreal 514 288 5722 Canada Ottawa 613 233 5949 Canada Qu bec 514 694 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 I
5. state this transistor is turned off allowing only a small leakage current to flow In the ON state the effective resistance between Voyr and Vsyp is typically 0 3 Q This resistance causes a voltage drop between the external supply voltage and the output voltage For example if the external supply voltage is 5 V and the output current is 1 A the output voltage is 4 7 V S5V LAx0 3 Q 4 7V Short Circuit Protection If the protection circuitry detects a short circuit condition on an output channel it disables the output If the protection circuitry disables an output that would otherwise be in the ON state the status indicator for that channel is still lit but the output transistor is turned off National Instruments Corp 5 FP PWM 520 and cFP PWM 520 Detecting a Short Circuit Condition To determine whether a channel is in a short circuit condition complete the following steps 1 In FieldPoint software set the duty cycle to 100 for the channel in question Refer to the Configuring the Output Channels section for more information about configuring the duty cycle 2 Measure the voltage between the Voyr and Vsyp terminals for that channel Under normal load conditions the Vour to V syp voltage is less than 1 V when the output is ON continuously Any voltage higher than 1 V indicates a short circuit Typically the Vout to COM voltage is almost zero if the protection circuitry is activated Resetting a Channel in
6. to connect the c FP PWM 520 to any circuits that may contain hazardous voltages This section describes the isolation of the c FP PWM 520 and its compliance with international safety standards The field wiring connections are isolated from the backplane and the inter module communication bus The isolation is provided by the module which has optical and galvanic isolation barriers designed and tested to protect against transient fault voltages of up to 2 300 Vms FP PWM 520 and cFP PWM 520 8 ni com Follow these guidelines to ensure a safe total system The c FP PWM 520 has a safety isolation barrier between the T O channels and the inter module communication bus There is no isolation between channels unless otherwise noted If any of the channels on a module are wired at a hazardous potential make sure that all other devices or circuits connected to that module are 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 stamped beside it Connect the backplane PE ground terminal to the system safety ground using 14 AWG 1 6 mm wire with a ring lug Use the 5 16 in panhead scr
7. FieldPoint Operating Instructions FP PWM 520 and cFP PWM 520 Eight Channel 5 V or 10 30 V PWM Output Module These operating instructions describe how to install and use the National Instruments FP PWM 520 and cFP PWM 520 pulse width modulation modules referred to inclusively as the c FP PWM 520 For details on configuring and accessing the c FP PWM 520 over a network refer to the user manual for the FieldPoint network module you are using Features The c FP PWM 520 is a FieldPoint pulse width modulation PWM output module with the following features e Eight PWM sourcing output channels e Oto 100 duty cycle capability with 12 bit resolution e Short circuit protection for outputs e Outputs source 5 VDC or 10 30 VDC Independent configuration of the output period for each channel from 1 to 65 535 ms in ms increments e On Off LED indicators e 2 300 Vin transient overvoltage protection e 40 to 70 C operation e Hot swappable FieldPoint National Instruments NI and ni com are trademarks of National Instruments Corporation Product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD orni com patents 323357B 01 May 2003 Ww NATIONAL 2002 2003 National Instruments Corp All rights reserved gt I
8. NSTRUMENTS Installing the FP PWM 520 The FP PWM 520 mounts on a FieldPoint terminal base FP TB x which provides operating power to the module Installing the FP PWM 520 onto a powered terminal base does not disrupt the operation of the bank To install the FP PWM 520 refer to Figure 1 and complete the following steps 1 Slide the terminal base key to either position X used for any module or position 4 used for the FP PWM 520 module 2 Align the FP PWM 520 alignment slots with the guide rails on the terminal base 3 Press firmly to seat the FP PWM 520 on the terminal base When the module is firmly seated the terminal base latch locks it into place Latch Alignment Slot Guide Rails V O Module Terminal Base Figure 1 Installing the FP PWM 520 Installing the cFP PWM 520 The cFP PWM 520 mounts on a FieldPoint backplane cFP BP x which provides operating power to the module Installing the cFP PWM 520 onto a powered backplane does not disrupt the operation of the bank To install the cFP PWM 520 refer to Figure 2 and complete the following steps 1 Align the captive screws on the cFP PWM 520 with the holes on the backplane The alignment keys on the cFP PWM 520 prevent backward insertion FP PWM 520 and cFP PWM 520 2 ni com 2 Press firmly to seat the cFP PWM 520 on the backplane 3 Using a number 2 Phillips screwdriver with a shank of at least 64 mm 2 5 in length tighte
9. ew shipped with the backplane to secure the ring lug to the backplane PE ground terminal As with any hazardous voltage wiring make sure that all wiring and connections meet applicable electrical codes and commonsense practices Mount terminal bases and backplanes in an area position or cabinet that prevents accidental or unauthorized access to wiring that carries hazardous voltages Operate the c FP PWM 520 only at or below Pollution Degree 2 Pollution Degree 2 means that only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caused by condensation must be expected Refer to the FieldPoint product label for regulatory certification under hazardous location standards If the FieldPoint product is not certified for operation in hazardous locations do not operate it in an explosive atmosphere or where there may be flammable gases or fumes National Instruments Corp 9 FP PWM 520 and cFP PWM 520 Specifications The following specifications are typical for a range of 40 to 70 C unless otherwise noted Output Characteristics Number of channels 8 Output type oceans Sourcing Output voltage woe Supply voltage Output current X Output impedance Supply voltage oo eee 5 VDC or 10 to 30 VDC user provided Maximum output current Per channel Temperature Ranges Module 40 to 50 C 50 to 60 C 60 to 70 C cFP PWM 520 1A 0 75 A 0 5
10. f 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 e IEC 61010 1 EN 61010 1 e UL3121 1 UL 61010C 1 e CAN CSA C22 2 No 1010 1 For UL hazardous location and other safety certifications refer to the product label or to ni com National Instruments Corp 11 FP PWM 520 and cFP PWM 520 Electromagnetic Compatibility CE C Tick and FCC Part 15 Class A Compliant EMmiSSiNS nesnenin EN 55011 Class A at 10 m FCC Part 15A above 1 GHz TMUNIY AA ETET EN 61326 1997 A2 2001 Table 1 3 Note For EMC compliance you must operate this device with shielded cabling CE Compliance This product meets the essential requirements of applicable European Directives as amended for CE Marking as follows Low Voltage Directive safety 73 23 EEC Electromagnetic Compatibility Directive EMC cccccsceesesteeseees 89 336 EEC 3 Note Refer to the Declaration of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product click Declarations of Conformity Information at ni com hardref nsf Mechanical Dimensions Figure 6 shows the mechanical dimensions of the FP PWM 520 installed on a terminal base If you are using the cFP PWM 520 refer to your Compact FieldPoint controller user manual for the dimensions and
11. n the captive screws to 1 1 N m 10 lb in of torque The nylon coating on the screws prevents them from loosening 1 cFP I O Module 4 Screw Holes 2 Captive Screws 5 cFP Backplane 3 cFP Controller Module Figure 2 Installing the cFP PWM 520 Wiring the c FP PWM 520 The FP TB x terminal base has connections for each of the eight output channels and for an external power supply to power the output channels and field devices The cFP CB x connector block provides the same connections Each channel has one output terminal Voyr one supply terminal Vsyp and two common terminals COM All eight channels are referenced to the COM terminals The V and Vgyp terminals are all internally connected as are the C and COM terminals National Instruments Corp 3 FP PWM 520 and cFP PWM 520 Use a5 VDC or 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 up to a maximum of 1 A per channel Connect the external power supply to multiple V and Vsyp terminals and to multiple C and COM terminals as needed to ensure that the maximum current through any terminal is 2 A or less Install a 2 A maximum fast acting fuse between the external power supply and the Vsyp terminal on each channel Install a 1 A maximum fast acting fuse suitable for the load at the Vout terminal Figure 3 shows fuses where appropriate
12. taly 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9131 0918 Mexico 001 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 1800 300 800 Norway 47 0 66 90 76 60 Poland 48 0 22 3390 150 Portugal 351 210 311 210 Russia 7 095 238 7139 Singapore 65 6226 5886 Slovenia 386 3 425 4200 South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 200 51 51 Taiwan 886 2 2528 7227 Thailand 662 992 7519 United Kingdom 44 0 1635 523545 National Instruments Corp 13 FP PWM 520 and cFP PWM 520
13. uty cycle settings 8 Vsup 1 PWM Output 2 OnTime 3 Period Figure 4 Period and Duty Cycle of a PWM Output National Instruments Corp 7 FP PWM 520 and cFP PWM 520 Status Indicators Figure 5 shows the status indicator LEDs on the c FP PWM 520 0 1 2 3 4 5 6 7 e o e e e e e o POWER READY Figure 5 Status Indicators The c FP PWM 520 has two green status LEDs POWER and READY After you insert the FP PWM 520 onto a terminal base or the cFP PWM 520 onto a backplane and apply power to the connected network module the green POWER indicator lights and the c FP PWM 520 informs the network module of its presence When the network module recognizes the c FP PWM 520 it sends initial configuration information to the c FP PWM 520 After the c FP PWM 520 receives this initial information the green READY indicator lights and the module is in normal operating mode In addition to the green POWER and READY indicators each channel has a numbered green status LED that lights when the channel is in the ON state Upgrading Your FieldPoint Firmware You may need to upgrade your FieldPoint firmware when you add new I O modules to your FieldPoint system For information on determining which firmware you need and how to upgrade your firmware go to ni com info and enter fpmatrix Isolation and Safety Guidelines Caution Read the following information before attempting
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