Information

New PL-P series - Additional Technical Specifications
MODEL RANGE
General
New PL-P series units offer remote control and read-back using analog, RS232, USB, LAN
(LXI) interfaces. They retain all of the capabilities of the New PL Series when under manual
control. All of the specifications from the previous page therefore apply to the equivalent
models in the New PL-P series. The following specifications are additional.
Versions with a GPIB interface are also available - see below.
Model Range
PL068-P 0 to 6V at 0 to 8A
PL155-P 0 to 15V at 0 to 5A
PL303-P 0 to 30V at 0 to 3A
PL601-P 0 to 60V at 0 to 1.5A
PL303QMD-P 2 x (0 to 30V at 0 to 3A), or 1 x (0 to 30V at 0 to 6A)
PL303QMT-P As PL303QMD-P plus 0 to 6V at 0 to 8A
PLH120-P* 0 to 120V at 0 to 750mA
PLH250-P* 0 to 250V at 0 to 360mA
*
Details and specifications are covered in a separate brochure (PLH and PLH-P series).
DIGITAL BUS INTERFACES - RS-232, USB, LAN (LXI)
The standard PL-P product offers full remote control and read-back using RS-232, USB or LAN
(LXI-C). All interfaces are at ground potential and opto-isolated from the output terminals.
Note: Remote/Local Sense, and Operational Mode (PL303QMD/T-P) are manually selectable only.
RS-232
Standard 9-pin D connector. Baud rate 9,600.
USB
Standard USB 2.0 connection (backwards compatible with USB 1.x). Operates as a virtual
COM port.
Ethernet (LAN)
Standard 10/100 base-T hardware connection. ICMP and TCP/IP Protocol for connection to
Local Area Network or direct connection to a single PC.
LXI Compliance
LAN interface is compliant with LXI-C. (LXI is the abbreviation for Lan eXtensions for
Instrumentation). For more information visit: www.tti-test.com/go/lxi
GPIB INTERFACE (Option G, factory fit only)
Option G adds a GPIB (IEEE-488) interface.
This is in addition to the RS-232, USB and LAN interfaces of the standard PL-P product. The
interface conforms with IEEE-488.1 and IEEE-488.2.
DIGITAL PROGRAMMING PERFORMANCE
Voltage Setting
Setting Resolution: 1mV
Setting Accuracy: ± (0.05% +10mV)
Current Setting
Setting Resolution: 0.1mA (0.01mA on 500mA range)
Setting Accuracy: ± (0.3% +0.005A) to 3A, ± (0.5% +0.005A) to 6A,
± (0.3% +0.5mA) on 500mA range
Programming Speed
Command Delay: Typically <80ms (this must be added to any of the figures below)
Voltage Up Time: Typically <45ms* to 1%
Voltage Down Time: Typically <20ms* to 1% (full load); typically <150ms* to 1% (no load)
* The up and down times vary with model, current range and voltage step size. More
information is within the operating manual which can be downloaded from our web site.
OVP and OCP PROTECTION
Measure-and-compare over-voltage and over-current protection are implemented in firmware
and can be set via the remote interfaces only. Output trips Off for OVP and OCP conditions.
Setting resolution: 10mV and 1mA.
Response time: typically 500ms
ANALOG REMOTE CONTROL (single output models only)
Non-isolated analog voltage control of voltage and current. Analog control outputs are also
provided to enable easy parallel connection of multiple units in a master-slave configuration.
Note that the PL303QMD-P and PL303QMT-P do not have analog remote control.
Scaling
Reference Point: All control voltage are referenced to the positive output terminal
Set Voltage Input: 0V to 10V sets 0 to 100% of rated output (e.g. 0 to 30V for PL303-P).
Alternative scaling of 0V to 5V (selectable using internal link).
Set Current Input: 0V to 10V sets 0 to 100% of rated output (e.g. 0 to 3A for PL303-P).
Alternative scaling of 0V to 5V (selectable using internal link).
Voltage Output: 0 to 100% of rated output voltage generates 0V to 5V.
Current Output: 0 to 100% of rated output current generates 0V to 5V.
Accuracy
Set Voltage Input: ± (0.3% +10mV); Input Impedance = 100kW
Set Current Input: ± (0.5% +0.005A); Input Impedance = 64kW
Voltage Output: ± (0.3% +10mV); Output Impedance = 125W
Current Output: ± (0.5% +0.005A); Output Impedance = 125W
Note that Analog control of current can not be used with the low current range selected.
REMOTE ANALOG ON/OFF CONTROL (single output models only)
Non-isolated terminal which sets the output to Off when pulled low by gate signal or relay
closure. Signal is reference to the positive output terminal.
Note that the PL303QMD-P and PL303QMT-P do not have this facility.
REAR TERMINALS
Power and sense connections are duplicated on the rear panel using a screw-less connector
block.
GENERAL SPECIFICATIONS
Input
AC Input: 230V AC or 115V AC ± 10%, 50/60Hz. Installation Category II
Input Power: Single output models - 280VA max.; Dual output models - 560VA max.
Triple output models - 840VA max.
Temperature & Environmental
Operating Range: +5ºC to +40ºC, 20% to 80% RH
Storage Range: -40ºC to + 70ºC
Environmental: Indoor use at altitudes up to 2000m, Pollution Degree 2.
Cooling: Intelligent variable-speed low noise fan assists convection.
Safety & EMC
Safety: Complies with EN61010-1
EMC: Complies with EN61326
Physical
Size: Single output models - 107mm x 131mm (¼ rack 3U) x 315mm,
Dual output model - 214mm x 131mm (½ rack 3U) x 288mm
Triple output model - 321mm x 131mm (¾ rack 3U) x 288mm
(sizes exclude feet, knobs and terminals).
Weight: Single output models - 4·9kg;
Dual output model - 8.6kg; Triple output model - 12.8kg
DRIVER SOFTWARE SUPPLIED
IVI Driver
An IVI driver for Windows is supplied. This provides support for common applications such as
LabView*, LabWindows*, HPVEE* etc.
USB Driver
An installation file is supplied which calls a standard Windows* USB driver.
* LabView and LabWindows are trademarks of National Instruments.
HPVEE (now Agilent VEE) is a trademark of Agilent Technologies.
* USB interface is supported for Windows 2000, XP, Vista, Windows 7, Windows 8.
Windows is a trademark of Microsoft.
OPTIONS
Rack Mount (RM450)
19 inch 4U rack mount suitable for up to four single power supplies, two dual power supplies,
or any mixture. Blanking plates are provided for unused positions. The 4U height provides
limited ventilation space above and below the power supplies.
GPIB Interface (Option G)
Option G adds a GPIB (IEEE-488) interface. This is a factory-fit option only.
Accuracy specifications apply for the temperature range 18°C to 28°C after 1 hour warm-up.
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves the
right to alter specifications without prior notice.
Remote Control Interfaces Table
Model Analog RS-232 USB LAN (LXI) GPIB
PL068
PL155
PL303
PL601
PL303QMD
PL303QMT
PL068-P • • • •
PL155-P • • • •
PL303-P • • • •
PL601-P • • • •
PL303QMD-P • • •
PL303QMT-P • • •
PL068-P(G) • • • • •
PL155-P(G) • • • • •
PL303-P(G) • • • • •
PL601-P(G) • • • • •
PL303QMD-P(G) • • • •
PL303QMT-P(G) • • • •