详细说明 高压隔离分离器   VariTrans® P 29000 KNICK

VariTrans® P 29000 Compact high-voltage isolation amplifiers with safe galvanic isolation, VariPower® broad-range power supply and genuine calibrated range selection.   Product description   Image Typical applications   Facts   Product Line   Dimension drawings   Schematic diagram   Specifications

Working voltages up to 1000 V AC/DC and test voltages up to 5.4 kV AC, high performance and compact modular housing – with the VariTrans® P 29000 series, Knick is consistently expanding the VariTrans® range. The new high-voltage amplifiers from Knick also present a globally unique combination of properties with substantial advantages in installation, configuration and operation: • Safe galvanic isolation with high isolation • Precise calibrated range selection (gain error 0.1 or 0.3 %) • Simple configuration without additional tools • Signal quality not influenced by control elements • Integrated broad-range power supply 20 to 253 V AC/DC Genuine Calibrated Range Selection VariTrans® P 29000 sets the measuring ranges via DIP switches on the front side of the modular housing. Selection is then regu lated by a micro-controller, meaning that no calibrators or other instruments are required for on-site configuration. LEDs visualize correct functioning or any errors. The simple implementation of special measuring ranges supports solutions tailored to your application. Optimized Housing With a width of only 17.5 mm, the modular housings of the P 29000 series strike an optimum balance between compactness and safety. The minimum clearance between inputs and outputs, in conformance with standards, is reliably met in the P 29000 series. Versatile Applications The high-voltage isolation amplifiers in the VariTrans® P 29000 series are available with three input variants for various requirements: high voltage or mV. The devices are ideal for monitoring and controlling electrical drive systems operated with DC voltages and feature a passive output for direct connection to a supplying SPC. Input voltages of ±100 V to ±1000 V DC are galvanically isolated and reproduced as a 0/4 ... 20 mA or 0 ... 10 V standard signal, or as a bipolar signal in the –20 ... 20 mA or –10 ... 10 V range at the output.Typical applications are direct current and servo drives, generators etc, alongside with power supplies for welding units and inverters for solar or wind power systems. The extraordinary performance and flexibility of the isolation amplifiers supports the user in the development of the most diverse product or system solutions. Practical Test Jacks For direct measurement of the output power, the isolation amplifiers feature test jacks which enable measurement of output current and voltage. An optional RangeLimit function allows setting lower and upper output limits. In addition, versions with full-wave rectifiers in the signal path are available. The user can invert the output. A connectable potentiometer enables adjustment of up to 5 % on the measuring section. Integrated Broad-Range Power Supply Maximum flexibility and direct added value for the user is also provided by the integrated VariPower® broad-range power supply (20 ... 253 V AC/DC), suitable for the power-engineering frequency range of 45 … 440 Hz. This ensures trouble-free operation with alternating or direct voltages everywhere in the world and provides for maximum safety even in unstable power supply networks. Installation is simple and safe – incorrect assignment of the mains voltage is practically excluded; expensive downtimes and repairs during commissioning are avoided. The 24 V DC supply voltage for the VariTrans® P 29000 can be conveniently and inexpensively looped by using mounting rail connectors. Superior Functionality In the VariTrans® P 29000 series, the circuit design and device construction ensure excellent transmission quality which is reflected in the zero stability, linearity, long-term stability, frequency response and immunity to interference. Thanks to the high cut-off frequency of the devices, the signal form on the input is reproduced on the output without distortion. Fast changes in the input signal are converted almost without delay into a corresponding change in the output signal. In the input signals, the new Knick high-voltage isolators provide a wide measuring range: from the millivolt range all the way to high voltages, can be directly measured. Analog unipolar and bipolar (standard) signals are available at the output. The user can select from 224 switchable calibrated ranges and thus take into account the individual operating conditions.

	Application examples

The Facts

Universal usability: input 20 mV up to 1000 V Working voltages up to 1000 V AC/DC Protective separation according to EN 61140 – protection of the maintenance staff and the subsequent devices against non-permitted high voltages up to 600 V AC/DC Test voltage 5.4 kV AC across input and output Excellent transmission properties: gain error 0.2 % cut-off frequency > 10 kHz rise time T99 < 200 μs High load capability at output: 12 V (current output), 10 mA (voltage output) High immunity to transient common-mode interference: T-CMR >100 dB Exceptional flexibility with calibrated range selection; reduction of device variants and thus of storage costs World-wide usability with VariPower® broad-range power supply 20 V to 230 V AC/DC ±10 %; reliable function even with unstable supply No destruction in the event of incorrect mains voltage Switchable output inversions Rectifier in signal path (absolute-value forming); optional RangeLimit, adjustable lower or higher limit at output; optional Test jacks for measuring output current and voltage Low space consumption in enclosure with only 17.5 mm wide modular housing Low-cost assembly – quick mounting, convenient connection of power supply through DIN-rail bus connectors (with 24 V DC supply) 5-year warranty

Product Line				Order No.
				P29000P2/	0		-
	24 V					0
	Broad range		Standard device			1
	Variant		to customer requirements					n	n	n	n
				P29001P2/	0		-
	24 V					0
	Broad range		Standard device			1
	Variant		to customer requirements					n	n	n	n
Special versions
Shunt break detection		(In case of an open input, the output will be at maximum.)
Absolute-value function		(Output cannot be negative.)
RangeLimit		(A lower or upper limit value can be specifi ed for the output range.)
All special versions apply to all measuring ranges.

Dimension drawings and terminal assignments

Schematic diagram

Specifications
Input data
Input range		max. ±1000 V DC
Overload capacity		Input: 0...1 V		max.± 30 V
(permanent)		Input: 1...100 V		max.± 500 V
		Input: 100...500 V		max.± 600 V
		Input: 500...1000 V		max.± 1200 V
Input resistance		Input: 0...1 V		approx 10 kohms
		Input: 1...100 V		approx 400 kohms
		Input: 100...500 V		approx 1 Mohms
Shunt break detection		< 300 uA
(optional)
Output data
Output, active		0/4 ... 20 mA or 0 ...10 V or
		-20 ... 20 mA or -10 ... 10 V
Output, passive		4 ... 20 mA, max. load 12 ... 26 V
Overload capacity with externally applied voltage		± 30 V
Displacement		Up to ±150 % as default
Max. load with:
Current		≤12 V (600 at 20 mA)
Voltage		≤10 mA (1 k at 10 V)
Overload range		Current output: > 22 mA (max. 26 mA)
		Voltage output: < 15 V
Offset adjustment range		±5 %
Residual ripple		<10 mVrms
Voltage drop when measuring the output current at test jacks 3.1 and 3.3		max. 150 mV
Transmission behavior
Gain error		Input ≤ 1 V		≤ 0,1 % meas.val.
		Input >1 V		≤ 0,2 % meas.val.
Offset		≤0.1 % full scale
Linear dynamic range		–5 % to approx. 102.5 % of input span
Overload signaling		Red LED on the front
Load error signaling		Red LED on the front
Response time T99		<200 ms or <200μs
Cutoff frequency		10 Hz or 10 kHz
Common-mode rejection1) CMRR		DC:		approx 150 dB
		AC 50 Hz:		approx 130 dB
		Transients 2)		approx 100 dB
Temperature influence3)		Input ≤ 1 V		< 50 ppm/K full scale
		Input > 1 V		< 80 ppm/K full scale
Power supply
Power supply		P29000P2/00		24 V DC +/– 25 %
		P29000P2/01		20 ... 230 V AC/DC +/– 10 %; AC: 45 Hz to 440 Hz
Power consumption		1,5 W
Isolation
Galvanic isolation		3-port isolation between input, output, and power supply
Test voltage		5.4 kV AC input against output and power supply
		4.3 kV AC power supply against input and output
Basic insulation acc. to EN 61010-1:2011 for circuits of CAT II and CAT III		Working voltage
		CAT II: 1000 V
		CAT III: 1000 V
Reinforce insulation acc. to EN 61010-1:2011 for circuits of CAT II and CAT III		Working voltage
		CAT II: 600 V
		CAT III: 300 V
Insulation acc. UL 508 and C22.2 No. 14 2010		Working Voltage
		CAT III: 600 V
Standards and approvals
EMC4)		Product standard EN 61326-1
		Emitted interference: Class B
		Immunity to interference: Industry
Explosion protection (approvals pending)		Europe, UL:		Zone 2	EN60079-15 (2005)
		USA / Canada, UL:		Class I, Div 2	UL1604 (1994),
					ANSI/ISA-60079-15