CompuMess Elektronik GmbH
CW Series Lise-Meitner-Str.1, 85716 Unterschleissheim
Tel 089-321501-0 Fax 089-321501-11
http://www.compumess.de oder http://www.netzteile.de
AC Power Sources
ContinuousWave
Programmable AC
Power Sources
T he ContinuousWave
(CW) Series of AC
power sources provides
clean single phase power
at an impressive price/
performance ratio. These
compact switch mode
sources come in two series,
manual (CW-M) or pro-
grammable (CW-P) with
standard IEEE-488.2 and
RS 232 control. Both series
have three power levels,
800 VA, 1250 VA and option H, CW-P only). Custom output CW APPLICATIONS
2500 A. The 800 VA and 1250 VA voltages are available (consult factory
models are 2U (3.5") high and allow The ContinousWave is designed for
for details). Both the manual and
the unit under test to be connected to testing single or polyphase electronics.
programmable models can be field
the front or rear panel. The 2500 VA The CW is well suited for applications
configured for three phase operation or
model is 3U (5.25") high with rear requiring a cost-effective low profile
used in parallel (including parallel -
panel output connections. All models AC source.
three phase) with optional factory
can be operated in a benchtop or supplied cables.
rackmount configuration. Applications include:
A separate output-on switch controls · Testing for real world sine wave
The front panels have two bright four power to the load. Remote voltage power conditions
digit, seven segment displays. The sense is standard. Transformer · 400 Hz testing for avionics
Power Factor Corrected (PFC) universal coupled output is protected against equipment
input voltage allows maximum power overvoltage and overcurrent. The unit · 50/60 Hz margin testing
to be delivered from an AC outlet is also protected against overtem- · Ballast testing
without the user selecting the range. perature conditions. A two-speed fan · AC components testing
Fully rated current is delivered for results in quieter operation at lower
· Power supply testing for AC to DC
either output voltage range of 135 VAC power levels. All models have the CE
converters
or 270 VAC over a standard frequency Mark, UL Listing Mark and C-UL
· AC motor testing
range of 45 to 500 Hz (45 to 1000 Hz Listing Mark.
CW Manual
Front Panel Power On/Off Switch Current & Frequency Controls Output Switch & Universal Connector
Voltage Controls Fault Lamp (CW 801 and CW 1251 only)
Overvoltage Set Screw Slave Lamp
Rear Panel Configuration
Dip Switch Slave In Connector
Strain Relief
Output Connector Slave Out Connector Protective Earth Connection Input Connector with
with Protective Cover External Control Connector Protective Cover
CW Programmable
Front Panel Power On/Off Switch Menu & Status Controls Output Switch & Universal Connector
Current/Frequency Controls (CW 801 and CW 1251 only)
Voltage & Power Controls
Fault Lamp
Rear Panel IEEE-488.2 Connector
Strain Relief RS 232 Connector
Output Connector Analog Slave Protective Earth Connection Input Connector
with Protective Cover with Protective Cover
Slave In & Out Connectors
MANUAL CW FEATURES PROGRAMMABLE CW FEATURES voltage or current mode operation
and output-on. LED's indicate
The manual series front panel knobs Front panel encoder knobs allow
menu/status, remote control, lockout
(10 turn potentiometers) allow quick programming of voltage, current and
and fault conditions. Digital Signal
adjustment of voltage, current and frequency settings. Programmed or
Processing (DSP) based measure-
frequency settings. Frequency and measured values can be viewed on the
ments include voltage, current
voltage can be programmed remotely two LED displays through push button
(amperes, peak amperes, crest
using a 0 to 5V analog signal. LED's selection. Menu push buttons enable
factor), power (watts, VA and power
indicate: output-on, voltage or current setting system configuration including
factor) and frequency.
mode operation, fault and slave parallel or three phase operation.
modes. Models can also be paralleled This menu also allows setting current
in the field or configured for three shutdown or foldback modes. Remote
phase operation using an optional IEEE-488.2 and RS 232 control
factory supplied cable. Current interfaces are standard. LED's
shutdown or foldback modes can be indicate: high or low range output
selected from a rear panel switch. voltage, measure or program mode,
CW SPECIFICATIONS MANUAL (M) PROGRAMMABLE (P)
OUTPUT
Power
CW 801 800 VA
CW 1251 1250 VA
CW 2501 2500 VA
Power factor of load 0 lag to 0 lead
Phase All models single phase output
Voltage
Ranges 0 to 135 VRMS or 0 to 270 VRMS, user selectable
(consult factory for custom output voltages)
Accuracy ±1% of range (>5 VAC out) ±0.1% of range <100 Hz, ±0.2% of range,
>100 Hz (>5 VAC out)
Resolution 0.1 VRMS
Total Harmonic Distortion 0.25% typical <100 Hz add 0.5%/100 Hz above 100 Hz
AC Noise Level <50 mVRMS typical for CW 801 & CW 1251, <100 mVRMS typical for CW 2501
Amplitude Stability ±0.1% of full scale over 8 hours at constant ±0.05% of full scale over 8 hours at constant
line, load and temperature after 15 minute line, load and temperature after 15 minute
warm-up typical warm-up typical
Load regulation ±0.1% of full scale voltage for a full resistive load to no load
(<10 mVRMS typical, measured at point of sense)
Line regulation ±0.1% of full scale voltage for a ±10% line change from nominal line voltage
(<5 mVRMS typical, measured at point of sense)
Remote voltage sense Compensation for up to 5 VRMS total lead voltage drop
Current
CW 801 6.0 ARMS in 135 VAC range or 3.0 ARMS in 270 VAC range
CW 1251 9.4 ARMS in 135 VAC range or 4.7 ARMS in 270 VAC range
CW 2501 18.6 ARMS in 135 VAC range or 9.3 ARMS in 270 VAC range
Accuracy ±0.5% typical ±0.5% max
Resolution 0.1 ARMS 0.01 ARMS
Frequency
Range 45 to 500 Hz (45 to 1000 Hz optional on programmable unit only)
Accuracy ±0.5% typical ±0.02% max
Resolution 0.1 Hz 0.1 Hz, 0.01 Hz for remote programming
CW SPECIFICATIONS MANUAL (M) PROGRAMMABLE (P)
Phase Angle
Range -359 to +359 degrees. Positive phase
indicates time lag from reference
Accuracy within 100 microseconds of equivalent angle
Resolution 1 degree
MEASUREMENT
Voltage
Range 0 to 270 VRMS
Accuracy ±1% of range (>5 VAC out), ±0.1% of range <100 Hz, ±0.2% of range
measured at point of sense >100 Hz, measured at point of sense (>5 VAC out)
Resolution 0.1 VRMS
Current *
Range
CW 801 0 to 6.0 ARMS
CW 1251 0 to 9.4 ARMS
CW 2501 0 to 18.6 ARMS
Accuracy ±2% of range for linear loads with ±0.5% of range for linear loads
current >0.2A, > 0.4A for 2500 VA
Resolution 0.1 ARMS 0.01 ARMS
Peak Current *
Range
CW 801 0 to 25A
CW 1251 0 to 35A
CW 2501 0 to 70A
Accuracy ±2% of range
Resolution 0.1A
Frequency
Range 45 to 500 Hz (45 to 1000 Hz optional on programmable unit only)
Accuracy ±0.5% of reading ±0.02% of value
Resolution of display 0.1 Hz
Power*
Range
CW 801 0 to 800W
CW 1251 0 to 1250W
CW 2501 0 to 2500W
Accuracy ±2% of range for linear loads
Resolution 1W
Apparent Power*
Range
CW 801 0 to 800 VA
CW 1251 0 to 1250 VA
CW 2501 0 to 2500 VA
Accuracy ±2% of range for linear loads
Resolution 1 VA
*Note: In a parallel system (for programmable units only), the current/power displayed on the master unit is the sum of all units in the system.
CW SPECIFICATIONS MANUAL (M) PROGRAMMABLE (P)
Power Factor*
Range 0 to 1
Accuracy ±4% of range for linear loads
Resolution 0.01
Crest Factor*
Range 0 to 3.5
Accuracy ±5% of range
Resolution 0.01
FRONT PANEL
Displays & Indicators
Menu/Status Green LED for output on, V mode, I mode, slave Green LED for remote and lockout, voltage mode,
Red LED for fault current mode, red LED for fault
Enter/escape buttons are present for programming
Voltage 4 digit display, green LED (volts) 4 digit display, green LED (volts, watts, VA, PF, OVP)
Current/Frequency 4 digit display, green LED (amperes) 4 digit display, green LED (amps, Hz, Pk amps,
CF, I Limit)
Program/Measure Green LED (amps, Hz I Limit)
V Range High/Low Green LED
INPUT
Voltage and Frequency
CW 801 90 to 264 VAC, 47 to 63 Hz, single phase
CW 1251 103 to 264 VAC, 47 to 63 Hz, single phase
CW 2501 180 to 264 VAC, 47 to 63 Hz, single phase
Current
CW 801 13 ARMS max
CW 1251 18.5 ARMS max
CW 2501 19.5 ARMS max
Power Factor >0.99 typical at full load nominal line
Efficiency >73% typical at full load
GENERAL
Regulatory Compliance CE Mark, UL Listing Mark and C-UL Listing Mark (consult factory for availability)
Dimensions
CW 801 and CW 1251 2U 3.5" H (89 mm) x 19" W (483 mm) x 20.6 D (524 mm)
CW 2501 3U 5.25" H (133 mm) x 19" W (483 mm) x 20.6" D (524 mm)
Weight
CW 801 48 lbs (22 kg)
CW 1251 53 lbs (24 kg)
CW 2501 86 lbs (39 kg)
Shipping Weight
CW 801 56 lbs (25 kg)
CW 1251 61 lbs (28 kg)
CW 2501 94 lbs (43 kg)
Environmental
Cooling Dual speed fan with side air intake, exhaust to rear
Operating Temperature 0 to 40°C
Storage Temperature -40 to 70°C
Humidity 0 to 85% at 25°C derate to 50% at 40°C (non condensing)
Altitude Operating full power available up to 6,000 feet, non operating to 40,000 feet
* Note: In a parallel system (for programmable units only), the current/power displayed on the master unit is the sum of all units in the system.
CW Programming Menu Commands Description
· Self Test: Indicates Pass/Fail after Power-on Self Test · Analog Input State: Specify whether an analog input
signal will program the output amplitude through the
· GPIB Port: Set 1 to 31 GPIB Addresses
internal DSP-based waveform
· Current Limit Type: Specify Current Shutdown or Foldback
· Store Settings: Store 0 to 98 system parameters:
· Shutdown Delay: Specify 0 to 3000 millisecond shut- - Volts
down delay - Frequency
· Program Keys Locked Mode: Specify whether to lockout - Current Limit Type (shut/fold)
front panel controls - Current Limit Shutdown Time
- Programming Keys Mode (enabled/disabled)
· Recall Settings: Recall 0 to 99 stored system parameters - Voltage Range (low/high)
(see Store Settings) - Overvoltage
· Relay State After Power Up Initialization: Specify - Analog Input (on/off)
whether to automatically close output power relay after - Clock Signal Direction (input/output)
power up · Clock Direction: Specify whether the clock port outputs a
· RMS Voltage Loop: Specify whether the RMS voltage clock pulse or is set to receive input synchronization
loop is on or off pulses
CW MODEL NUMBER DESCRIPTION
CW 801M - S
Series Options
Maximum Power Single Phase
M = Manual
P = Programmable
ORDERING INFORMATION OPTIONS & ACCESSORIES
Model Number Output (Single Phase) Input (Single Phase) H: Extended frequency range 45 to
Maximum Power Maximum Current Voltage (47-63 Hz)
1000 Hz (CW-P only)
135V 270V
L: Locking shafts (front panel
potentiometers) (CW-M only)
CW Manual S: Sync In/Out (clock/lock)
CW 801M 800 VA 6.0A 3.0A 90 to 264 VAC (CW-M only, standard on CW-P)
CW 1251M 1250 VA 9.4A 4.7A 103 to 264 VAC
Rack Slide Kit
CW 2501M 2500 VA 18.6A 9.3A 180 to 264 VAC Elgar Part No. K161570-01
CW Programmable Multi-Unit Cable
CW 801P 800 VA 6.0A 3.0A 90 to 264 VAC Elgar Part No. 890-497-40
CW 1251P 1250 VA 9.4A 4.7A 103 to 264 VAC Required for parallel and paralleled
CW 2501P 2500 VA 18.6A 9.3A 180 to 264 VAC polyphase CW-M and CW-P systems
Digital Expansion Cable
Product specifications are subject to change without notice. Elgar Part No. 890-499-00
Required to configure any parallel or
polyphase CW-P system
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
CW12/00