| Kenwood PWR Series Power Supply |
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| POWER SUPPLIES (Multiple Output) |
Digital Display
PWR Series:
- Model PWR18 - 18Q 4 Output Power Supply ( 18V / 1.8A, 8V / 2A, 6V / 1A )
- Model PWR18 - 1T 3 Output Power Supply ( 18V / 1A, 6V / 5A )
- Model PWR18 - 2 2 Output Power Supply 18V / 2A
- Model PWR36 - 1 2 Output Powr Supply 36V / 1A
- Model GP620 for PWR Series Power Supplies Adaptor
Click on the Models Link to View Their Specifications
OUTLINE:
The PWR Series Power Supplies are multi-function, dual-tracking CV/CC power supplies
featuring a built-in microprocessor and excellent reliability. They provide multiple output
performance and experimental and systems use that rivals the previous approach of using
several single-output supplies. The PWR Series provide a listener function that enables digital
signal remote control of all functions of the PW Series power supplies and a talker function
which enables read-back of not only all setting conditions but also output voltage and current
as well. Compatible with various remote control schemes including the GP-IB control for
system use (using the optional GP-620) and computer control, the PWR Series of powerful,
multi-function power supplies are the ideal choices for a wide range applications such as
automated measuring systems and simulation experiments.
FEATURES:
Dual Tracking
Dual tracking is provided, enabling positive and negative voltages and currents to track from
zero simultaneously when varied, providing positive and negative outputs with simular absolute
value. This tracking function can be disabled for individual setting of positive and negative
values. These models satisfy Low-Voltage Standards (IEC1010) and EMC Standards
Requirements.
Simultaneous Digital Display of Voltage and Current
Output voltage and current are indicated simultaneously on 7-segments red LED displays, and
a switch operation can be used to display the voltage and current of any of the outputs.
Presetting of Voltage and Current Value Pairs (3 points)
Three sets of frequently used voltage and currents (V-A pairs) can be preset, thereby enabling
quick setup of the power supply output. A variable adjustment enables continuous adjustment
of each output. The output on/off delay time can also be preset.
One-Dial Control
To simplify operation, all setting conditions are selected at the push button, with a single
rotary-encoder dial being used to set all values. In addition, output voltage and current can also
be set to resolutions of 10 mV and 10 mA, respectively. Normal/fast switching is also available.
Output Protection
When the output is on, if a preset switch or variable switch is changed or the tracking switch is
set to on, a protection circuit cuts of the supply output, to prevent output of unexpected
voltages and currents (when the output protect switch is set to on).
Key Lock
A key-lock function can be used to forcibly hold all setting values, thereby preventing the
inadvertent changes of values during a power supply operation extending over long hours, or
when you leave the power supply unattended during experiments.
Last-One Memory
A backup function holds setting values, so that when the power is switched on the values in
effect when power was switched off are set automatically, eliminating the need to make settings
once again (except for the output switch and protect switch which are not backed up.)
ON/OFF Delay Time (PWR18-1.8Q and PWR18-1T only)
For a multiple-output power supply, when more than one of the outputs are switched on or off
simultaneously, the experimental device or circuit being supplied may be influenced
unexpectedly, running the risk of damage. To prevent this, the delay time feature enables you
to turn on a given output only after a delay time, and turns this output off this same delay time
before the other outputs.
Natural Cooling
Thanks to an energy-saving design minimizing the temperature rise inside the unit and to a
structure with high heat exhaust efficiency, the unit does not need a ventilation fun, thereby
eliminating trouble such as noise, vibration and absorption of dirt.
Rack Size Unit
Assuming the use in experimental fields and in combination with system components, the unit
has a case size which complies with the rack specifications of EIA and JIS.
Remote Control Functions
By setting addresses for each of a bank of PWR Series power supplies, it is possible to assign
a master/slave weight (ID). The slaves can be used either in the remote or the local mode.
Master/Slave Operation
- Master: Controller on the system interface (only one per system.)
- Slave: Unit controlled by the controller (master) on the system interface (up to 4 supplies per system.)
Remote/Local Mode
- Remote: In the remote mode, local control of the PWR Series is disabled (i.e. panel operations are disabled). When a slave receives a command from the master power supply via
the system interface, the remote mode is enabled.
- Local: In the local mode, all PWR Series functions are locally controllable (i.e. panel
operations are enabled). When the Key Lock is switched off, return is made from the remote
to the local mode.
Address Setting
The address of each power supply (0 to 26) can be set and verified simply (from the front panel.)
Addresses have a priority sequence, which starts with address 0, and duplication of addresses is
not permitted.
IDs to Ensure System Safety
Identification of IDs to read the output settings and actual output values of connected supplies
enables reliable monitoring, thereby facilitating software implementation of intrinsically safe
systems. An automatic system which uses GO/NO-GO comparison to sense both over- and
under-voltage (OVP and UVP) conditions according to the output value setting can be easily
implemented. A system can be implemented which provides detection of CV/CC transitions and
detection of output voltage alarm.
GP-IB Remote Control:
GP620 Adaptor for PWR Series Power Supplies
Listener/Talker Functions
All PWR Series function settings and readout of the output voltage and current of each supply are
possible by using the listener/talker functions, and the addition of the GP-620 (master) enables
control of up to four PWR Series power supplies.
- The PWR Series (slave) can be used in the remote mode.
- Identification of IDs can be used to read out output settings and output values of PWR Series
supplies, ensuring system efficiency and safety.
- The PWR Series control signal format conforms to RS-232C standards.
- Listener function: All PWR Series functions including output voltage, output current, output on/off,
and presets are settable.
- Talker function: All PWR Series function settings, including output voltage and current can be
read back.
Service Request (SRQ)
The constant voltage (CV) and constant current (CC) status as well as the output voltage error
status of the connected PWR Series power supplies are monitored in real time, and an SRQ is
generated as required.
Master Operation:
Single-Control Operation
One PWR Series master can control up to four slave power supplies of the same model, controlling
all functions simultaneously under the same conditions.
- The PWR Series supplies (slaves) operate in the remote mode.
- The master is in the talk-only condition, with the slaves in the listen-only condition.
- Output control (including output voltage setting, presets, output on/off, and display) of all supplies
is possible from a single master. However, parallel connection of outputs is not possible.)
Computer Control:
RS-232C Control
An external computer can be directly connected to control all PWR Series function settings and
use the supplies as programmable supplies with readable output voltage and current values.
- One controller (master) can be used to control up to four PWR
Series supplies.
- The PWR Series power supplies (slaves) are used in the remote mode. Because each slave has
an address assigned to it, each can be controlled individually.
- Identification of IDs can be used to control and read the outputs of each power supply individually,
enabling the implementation of a safe system which performs program control based on changes in
load conditions.
- The PWR Series control signals conform to RS-232C standards.
External Remote Control:
Remote Function
- By connecting the RT-63 Remote Controller, it is possible to simultaneously control functions
such as the preset value (output value) switching and output on/off condition of up to four PWR
Series power supplies. It is also possible to perform remote control using contact or logic signals
via the remote controller.
- The PWR Series supplies operate in the remote mode.
- The output value settings of each of the PWR Series supplies can be set from the front panel of each supply when in the local mode.
External Contact Signals
Selection of presets and the various on/off switching functions are each assigned a separate signal.
Click on the Models Link to View Their Specifications
 Datasheet for PWR SERIES (pdf format)
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