Issue 03/2013. The Electronic Load

Transcription

1 Issue 03/2013

2 ZS Electronic Loads, PL Series Interface overview RS-232 USB / GPIB LAN System bus Analog X Analog isolated / X Standard ption / not available PL506 PL1006 Voltage Current Resistance 3) Model Continuous Shorttime Rise and fall Housing Connections 4) (order number) power power 1) time 2) PL W 900 W 60 V 50 A 75 µs 0.1 Ω... ½19, 2HU FK 8 PL506 SC5 5) 300 W 300 W 60 V 5 A 75 µs 1 Ω... ½19, 2 HU PK 4 PL W 900 W 120 V 20 A 75 µs 0.2 Ω... ½19, 2 HU PK 4 PL W 900 W 240 V 10 A 75 µs 0.5 Ω... ½19,2 HU SB 4 PL W 600 W 400 V 8 A 75 µs 1.5 Ω... ½19, 2 HU SB 4 PL W 1800 W 60 V 100 A 75 µs 0.05 Ω... 19, 2 HU FK 8 PL1006 SC10 5) 600 W 600 W 60 V 10 A 75 µs 0.5 Ω... 19, 2 HU PK 4 PL W 1800 W 120 V 50 A 75 µs 0.1 Ω... 19, 2 HU FK 8 PL W 1800 W 240 V 20 A 75 µs 0.3 Ω... 19, 2 HU SB 4 PL W 1200 W 400 V 16 A 75 µs 1 Ω... 19, 2 HU SB 4 PL W 2700 W 60 V 150 A 75 µs 0.04 Ω... 19, 2 HU FK 8 PL1506 SC15 5) 900 W 900 W 60 V 15A 75 µs 0.4 Ω... 19, 2 HU PK 4 PL W 2700 W 120 V 80 A 75 µs 0.06 Ω... 19, 2 HU FK 8 PL W 2700 W 240 V 30 A 75 µs 0.2 Ω... 19, 2 HU SB 4 PL W 1800 W 400 V 25 A 75 µs 0.5 Ω... 19, 2 HU SB 4 1) The possible short time power depends on the temperature of the output stage, i.e. on the previous load. 2) Rise and fall times are defined from % and % of the maximum current. (Constant current operation, tolerance +/- 20 %). 3) is achieved in the context of reproducibility for resistance operation. 4) SB 4: Protected laboratory socket 4 mm PK 4: Pole terminal for 4 mm laboratory jack FK 8: Flat copper rail with M8 screw 5) Devices with reduced setting range 1HU = 1 height unit = mm perating Modes Dynamic peration Protective Devices verload Capacity The devices have constantcurrent and constant-resistance operating modes in both static and dynamic operation. If fitted with an RS-232 or GPIB interface, softwarecontrolled constant power control is possible. The manual setting of the load values takes place via two precise ten-turn potentio-meters. Switch from value A to value B by a keystroke. In dynamic mode the inbuilt modulator performs the switch between the setpoints A and B. For each load level it is possible to set a corresponding pulse duration of 0.5 ms milliseconds. In addition, pulse-pause ratios can be varied within broad time range. Switching between the two load levels can also be via the analogue I/ interface at all levels between 3 V and 30 V. ver-current protection ver-power protection ver-temperature protection ver-voltage protection Reverse polarity protection Protection of the GND lines at the Analog I/ interface If a protected value is exceeded the respective display flashes. The type spectrum comprises three power classes with 500 W, 1000 W and 1500 W continuous load capacity. Depending on the model the devices have temporary overload capacity. The level and duration of the possible overload depends on the operating temperature of the power stage. The device can also be used for significantly higher power tasks. 8

3 ZS Analog I/ Interface The Analog I/ Interface also Standard Analog I/ Interface with V level for: has the following logical inputs and outputs: Input voltage Load current Power consumption Nominal current Master-Slave circuit verload status for the overload display Trigger output during dynamic operation Trigger input for external control of the dynamic load change The control of the load current can be via an analog signal with optionally V or V. Control input for battery test Control Input for external load activation Sense terminals (for 60V and 120 V models) Interfaces RS-232 Interface Requires PL01 or PL02. Factory Calibration ptional interfaces are an RS- 232 and a combined GPIB + RS- 232 interface. The interfaces enable all settings functions including comprehensive dynamic settings incl. programmable rise and fall times. There is also a measurement function for input voltage and load current. All interfaces are electrically isolated from the load input to prevent earth loops forming with the test structures. Programming takes place in SCPI syntax. (ption PL01) The RS-232 interface is the most economical option for controlling devices by PC. It also includes the system bus interface which allows multi-channel systems to be constructed. GPIB + RS-232 interfaces (ption PL02) Combined GPIB + RS-232 interface + system bus interface External LAN-RS232 Adapter (ption PL04) Enables the device to be controlled via LAN interface. Tools The H&H Homepage has a program library for Windows with the following applications: Load control via PC Programming of custom load profiles Recording of current limitation characteristics Endurance test with memory function for voltage and current Battery testing with recording of discharge curves LabVIEW driver Certificate (ption FCC-PLxx) A Factory Calibration Certificate (FCC) can be supplied with the devices. The FCC meets the requirements according to DIN EN IS 9000ff. This calibration certificate documents the traceability to national standards to illustrate the physical device in accordance with the inter-national System of Units (SI). The recommended calibration interval is 1 year. Configuration of a Multichannel System For control of additional devices via the GPIB or RS-232 interface of the primary device, any number of devices can be connected via the system bus interface (ption PL01 in all other devices). Despite the shared interface, the devices are electrically isolated from one another and can be operated with potential differences of up to 125 V. 9

4 perating temperature ZS Technical Data PL Series Accuracy of manual setting, no preset function Current ±0.4 % ±0.05 % Resistance (at 5% to 100% of the voltage range) ±5 % ±0.5 % of current range Accuracy of manual setting, with preset function Current Accuracy of display of the preset value ±0.6 % ±0.05 % of the measured value (actual value) Voltage ±0.2 % ±0.05 % ±1 digit Current ±0.4 % ±0.05 % ±1 digit Accuracy of analog control V / V for current setting Current 10 V 5 V ±0.5 % ±1.5 % Input resistance of analog inputs 10 kω/20 kω at 5 V/10 V GND max. ±2 V with respect to negative load input Accuracy of analog measurement outputs V for current, voltage, power of analog signal of actual value ±0.2 % ±0.4 % offset voltage Voltage ±0.2 % ±20 mv Current ±0.3 % ±20 mv Power ±5 % ±30 mv Reference voltage 10.5 V Load capacity: minimal 2 kω ±4 % Accuracy of setting Programming via data interface (ption PL01 or PL02) Current ±0.4 % ±0.05 % Resistance (at 5 % to 100 % of the voltage range) Resolution setting 12 Bit ±5 % ±0.5 % of current range Accuracy of measurement, read out via data interface of the measured value (actual value) Voltage ±0.2 % ±0.06 % Current ±0.5 % ±0.12 % Resolution Sampling rate 13 bit Control via Analog I/ interface Status outputs (open collector 30 V) External control functions (Level 3 V V) Dynamics 300 ms, non-triggering verload Trigger output at dynamic load Load switching off - on Battery test off - on Trigger input for switching dynamic load level two load levels in I and R mode, two separately adjustable times External triggering of load level switching also possible Input Input resistance Input capacity Parallel operation Input voltage Minimum voltage Permissible operating voltage Protective devices Connections: Load input: Sense: Continuous power >50 kω when load input is off Approx. 2 µf / 500 W Up to 5 units in Master-Slave mode (hardware-controlled) Min. 1.4 V for max. current including linear derating of current with respect to 0 V Negative load input - housing 125 V DC ver-voltage up to 120 % of rated voltage, over-current, over-power, over-temperature, reverse polarity up to rated current, transient protection, display by flashing of current and/or voltage display, under-voltage display (if input voltage is too low for the set load) up to 120 V: available on I/ interface from 240 V: unavailable (where TA = 21 C) Derating -1.2 % / C for TA > 21 C verload capacity Time range for internal modulator Accuracy of the time setting Battery test Adjustable cut-off voltage Presetting function Current mode Resistance mode perating conditions Cooling 1 ms ms (2 Hz... 1 khz) ±10 % ± 0.2 ms the load is reduced to 0 on reaching the cut-off voltage (I/V mode, R/V mode) Direct display of load current Display of expected load current with applied input voltage 5 C C 2-stage air-cooling Noise PL5XX PL10XX PL15XX 55 dba 59 dba 60 dba Supply voltage Power consumption Dimensions W x B x D (mm) weight Colour Front panel, back panel side panels, top 115/230 V~ ±10 %, switchable Hz PL5XX PL10XX PL15XX max. 30 VA max. 50 VA max. 60 VA PL5XX PL10XX PL15XX 222 x 88 x x 88 x x 88 x kg 12 kg 16 kg RAL7032 (pebble grey) RAL7037 (stone grey) Electrical safety DIN EN 61010: EMC, CE marking DIN EN : DIN EN : DIN EN : mounting kits for models order number 1 PL5XX ES PL PL5XX ES PL05-2 PL10XX or PL15XX ES PL2 Warranty 2 years Subject to technical modifications 10

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