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Related Manuals for Schloder SFT 1400
Summary of Contents for Schloder SFT 1400
- Page 1 OPERATION MANUAL BURST-GENERATOR SFT 1400...
- Page 2 This is for persons with a cardiac pacemaker an unavoidable dangerous equipment. The local and national and all applicable safety regulations must be obeyed for operation of this unit. Operation of this unit is only allowed to an experienced electric technician, see VDE 0104. Manual SFT 1400 page 2...
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Page 3: Table Of Contents
Limits of parameters......................20 Putting into operation......................20 Technical data ........................21 7.1. Generator unit ........................21 7.2. Coupling network........................21 7.3. General...........................21 Calibration ..........................22 Scope of delivery ........................22 9.1. Basic model ...........................22 9.2. Options and accessories .....................22 Block schematic SFT 1400....................23 Manual SFT 1400 page 3... -
Page 4: Introduction
Handy unit and easy to be operated Burst definitions drawing 1 designation param. standard definition variable setup on SFT 1400 15 ms ± 20% at 5 kHz 0,75 ms ± 20% at 100 kHz 0,01 - 100 ms * burst duration (correspond to 75 pulses... -
Page 5: Description Of Functions
Description of functions 3.1. General The burst generator SFT 1400 exists of a generator module and a coupling network. The generator module itself has a power supply, a control module and a high voltage module. Generatorteil / generator module Netz / mains... -
Page 6: Front Panel Functions
[14] Selection key for the frequency, linked with the display left (frequency in kHz). Adjustment of parameters by turning the digital potentiometer [8]. [15] LED for "CWG active", necessary for the connection with the surge-generator CWG 500. Manual SFT 1400 page 6... - Page 7 [21] HV-output for the connection of a capacitive coupling clamp or an external 3 phase coupling network. The settable parameters as there are voltage, spike frequency, burst-duration and burst period are displayed on LED-displays. The operation modes of the key functions will be displayed by LED’s in the appropriate switch. Manual SFT 1400 page 7...
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Page 8: Connectors On The Rear
3.4. Connectors on the rear Abbildung 4 [30] Electronic feeding for the SFT 1400 with RF-suppression filter. [31] Ground jack. [32] Internal serial bus for the operation of several Schlöder test generators in one setup [33] Operational input for an EUT's failure supervision. -
Page 9: Test In Conformity To The Standards
"- - - -". The function of the trigger key [5] may be remote controlled via BNC-input: permanent grounding of this TTL-input makes continuous operation. Short time (less than burst period) grounding fires a single burst packet. Manual SFT 1400 page 9... -
Page 10: Test According To The Standard / Data-Lines
Burst duration: key [13] • Setting possible from 0,01 ms to 100 ms. Depend on the spike frequency and the burst duration. The Generator SFT 1400 automatically considers the maximum unit's power capability (see chapter 5). The display is off if mode “continous burst” is activated. -
Page 11: Polarity Selection
The coupling network has no internal fuses, the user has to provide proper fusing for the test object and the coupling network according to its power consumption. Fuse size must not exceed 16 A, see also technical data ch.7. Manual SFT 1400 page 11... -
Page 12: Pulse Output
I/O-leads is mostly not possible because this would falsify their signals, therefore coupling is made using the capacitive clamp which couples along a distance of 1 m. The generator SFT 1400 can be connected to both sides of the capacitive clamp SFT 410. -
Page 13: Self Check / Measurements
400 MHz. A good solution would be a Tektronix model 7834 with Y-amplifier type 7A26, input terminated with 50 Ω , alternative with a 50 Ω amplifier type 7A19 and Tektronix TDS 680 B. Manual SFT 1400 page 13... -
Page 14: Special Functions With The Key "Special
Special functions with the key "special" The special functions of the SFT 1400 can be selected by pressing the key "special" [9]. The yellow LED inside the key displays the mode. All operation-modes are placed sequentially, every press on the key [9] switches to the next function. -
Page 15: Special Function Dfm Mode / Decreasing Frequency Mode
If the EUT shows any influence the user will change to the variable test mode according ch. 3.7 to find the details of incompatibility and the exact reasons for this. drawing 5 Manual SFT 1400 page 15... -
Page 16: Special Function Sweep
3.7 to find the details of incompatibility and the exact reasons for this. drawing 6 drawing 7 Window from burst packet sweep burst packet sweep Manual SFT 1400 page 16... -
Page 17: Memory Function
• Press memory key again. The generator is in the operation mode again and the values shown before activating the memory mode are shown again. While exiting the memory mode, memory cell 20 is deleted. Manual SFT 1400 page 17... -
Page 18: Burst Test Field
50 cm. • While using a coupling clamp keep a distance of at least 50 cm to the walls. The distance between coupling clamp and EUT must not be more than one meter. Manual SFT 1400 page 18... -
Page 19: Recommendation For The Setup Of A Testing Corner
• The metal plates must be connected with low impedance, either by welding or with copper tape. The ground plate on the table is to be connected with the ground plane. Manual SFT 1400 page 19... -
Page 20: Limits Of Parameters
Limits of parameters The design of the generator SFT 1400 makes it superior to the pre given values of IEC 61000-4-4, it will exceed a lot of values in a wide range. But there are limits for some settable parameters of the generator... -
Page 21: Technical Data
HV-output coaxial connector monitor output BNC, TTL-level 7.2. Coupling network This is part in the cabinet of the test generator SFT 1400. operating voltage AC max. 230 V / 50 Hz operating voltage DC max. 60 V operating current max. 16 A serial choke inductive 150 µH / 16 A... -
Page 22: Calibration
Because of the huge range of tolerance we recommend a calibration every two years !! Scope of delivery 9.1. Basic model • burst generator SFT 1400 • mains cable for the burst generator *) • mains cable for test object, 2 m long, with protection earth plug and banana-plugs. *) • This operation manual *) In certain periods mains cable and test objects power cable must be checked carefully on defective insulation. -
Page 23: Block Schematic Sft 1400
Block schematic SFT 1400 10 nF HV-switch polarity µP - control reversal power source HV out electronic mains operation: duration - mode periode - polarity frequency - triggering voltage - coupling µP - control burst parameters monitor ext. trigger RS 232...
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