NI NIFP-PWM-520

Pulse-Width Modulation Output Module
for Compact FieldPoint
NI cFP-PWM-520
• 8 outputs
• 5, 12, and 24 VDC
• 1 A per channel, maximum
• 1 kHz max frequency
• Overcurrent protection on outputs
• 2,300 Vrms bank isolation for transient
overvoltage protection
• Hot-swappable with autoconfiguration
• -40 to 70 °C operating range
Output
Module
Channels
cFP-PWM-520
8
Output
Voltages
5 VDC or
10 to 30 VDC
Output
Frequency
Up to 1 kHz
Output
Output Current
Duty Cycle (see Specifications)
0 to 100%
1A
Overview
The National Instruments cFP-PWM-520 is a versatile pulse-width
modulation output module for Compact FieldPoint that you can use to
control the power of many DC-powered devices. By pulsing the input
voltage and varying the duty cycle, you can perform analog control on
many DC devices. The NI cFP-PWM-520 is commonly used to efficiently
control power such as the speed of a DC servo motor, the intensity of a
light bulb, or the heat output of an industrial heater. It includes onboard
diagnostics to ensure trouble-free installation and maintenance.
Pulse-Width Modulation Output
You can configure the output period for each cFP-PWM-520 channel
to vary from 1 ms to 65.5 in 1 ms increments. You then programmatically
set the duty cycle for each channel. The duty cycle is the percentage
of the output period when output is high. You can set the duty cycle
for 0 to 100 percent with 12-bit resolution (4,096 settings). Each output
channel is an optically isolated sourcing output with overcurrent
protection. The outputs are compatible with voltages from 10 to 30 VDC,
or 4.5 to 5.5 VDC, and each output can drive up to 1 A.
Isolation
The cFP-PWM-520 features optical bank isolation with 2,300 Vrms of
breakdown isolation. This Compact FieldPoint module does not have
channel-to-channel isolation.
Field I/O Connections
Compact FieldPoint modules include a built-in power distribution bus
that provides multiple power connections on the module. A field-wired
power supply connected to the voltage (V) and common (C) terminals is
internally connected to a power distribution bus that offers additional
breakout terminals for voltage supply (VSUP) and common (COM). These
terminals deliver a convenient way to distribute power to field devices
that require external power.
The cFP-PWM-520 has:
• 8 pulse-width modulation digital output terminals (VOUT)
• 16 common terminals (COM)
• 8 power connections to power field devices (VSUP)
Pulse-Width Modulation Output Module for Compact FieldPoint
C
V
VSUP
Protected
Sourcing
Output
5 to 30 VDC
External
Power Supply
+
VOUT
COM
Load
–
COM
cFP-PWM-520
Wiring Schematic for the cFP-PWM-520
Ordering Information
NI cFP-PWM-520 ................................................................777318-520
Recommended Compact FieldPoint System Products
NI cFP-2120 ......................................................................777317-2120
NI cFP-BP-4 ............................................................................778617-04
NI cFP-CB-1............................................................................778618-01
NI PS-5 power supply............................................................778805-90
NI Developer Suite Professional Control Edition ....................777906-03
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information, call 800 813 3693 (U.S.) or go to ni.com/compactfieldpoint.
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Pulse-Width Modulation Output Module for Compact FieldPoint
Specifications
Safety and Compliance
Typical for -40 to 70 °C unless otherwise noted.
Safety
Output Characteristics
This product is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement, control,
and laboratory use:
Number of channels............................ 8
Output type ......................................... Sourcing
Output voltage .................................... Supply voltage (Output current x
output impedance)
Supply voltage .................................... 5 VDC or 10 to 30 VDC,
user-provided
Maximum output current .................... 1 A per channel at -40 to 50 °C;
0.75 A per channel at 50 to 60 °C;
0.5 A per channel at 60 to 70 °C
All channels ........................................ 8 A
Output impedance............................... 0.3 Ω typical at 10 to 30 VDC
Period .................................................. 1 to 65,535 ms
Duty cycle............................................ 0 to 100%
Resolution ........................................... 12 bits
Pulse-width accuracy.......................... -1 to +3 µs ± 0.005%
Protection ............................................ Short-circuit
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA 61010-1
Note: For UL and other safety certifications, refer to the product label or
visit ni.com/certification, search by model number or product line, and
click the appropriate link in the Certification column.
Electromagnetic Compatibility
This product is designed to meet the requirements of the following
standards of EMC for electrical equipment for measurement, control,
and laboratory use:
• EN 61326 EMC requirements; Minimum Immunity
• EN 55011 Emissions; Group 1, Class A
• CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A
Isolation Voltage
Note: For EMC compliance, operate this device according to
product documentation.
Channel-to-channel isolation.............. No isolation between channels
Transient overvoltage.......................... 2,300 Vrms
CE Compliance
Physical Characteristics
This product meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:
LED indicators
POWER (green) ...............................
READY (green) ................................
Output <0...7> (green) ..........................
Dimensions ........................................
• 2006/95/EC; Low-Voltage Directive (safety)
• 2004/108/EC; Electromagnetic Compatibility Directive (EMC)
Power on and self-test passed
Module configured and ready
Instantaneous on/off output status
127.0 by 65.9 by 23.9 mm
(5.00 by 2.60 by 0.94 in.)
Weight................................................. 110 g (3.9 oz)
Note: Refer to the Declaration of Conformity (DoC) for this product for
any additional regulatory compliance information. To obtain the DoC for
this product, visit ni.com/certification, search by model number or
product line, and click the appropriate link in the Certification column.
Power Requirements
Waste Electrical and Electronic Equipment (WEEE)
Power from network module .............. 715 mW
EU Customers: At the end of their life cycle, all products must be
sent to a WEEE recycling center. For more information about WEEE
recycling centers and National Instruments WEEE initiatives,
visit ni.com/environment/weee.htm.
Environment
Operating temperature ....................... -40 to 70 °C
Storage temperature........................... -55 to 85 °C
Relative humidity ................................ 10 to 90%, noncondensing
Shock and Vibration
Operating vibration, random
(IEC 60068-2-64) ............................. 10 to 500 Hz, 5 grms
Operating vibration, sinusoidal
(IEC 60068-2-6) ............................... 10 to 500 Hz, 5 g
Operating shock
(IEC 60068-2-27) ............................. 50 g, 3 ms half sine,
18 shocks at 6 orientations;
30 g, 11 ms half sine,
18 shocks at 6 orientations
BUY ONLINE at ni.com or CALL 800 813 3693 (U.S.)
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*351575A-01*
351575A-01
2007-9293-161-101-D
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