Vitrek 964i Operating & Maintenance Manual
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Vitrek 964i Operating & Maintenance Manual

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ViTREK
964i
OPERATING & MAINTENANCE MANUAL

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Summary of Contents for Vitrek 964i

  • Page 1 ViTREK 964i OPERATING & MAINTENANCE MANUAL...

  • Page 2: Table Of Contents

    Installing in a 19” Rack Enclosure ..........................14 Cooling ..................................15 Connecting to a ViTREK 95x or V series Tester ......................15 SECTION 6 – FRONT PANEL OPERATION ........................16 SECTION 7 – COMPENSATING FOR LEAKAGE CURRENTS AND CONTACT RESISTANCES ..........18 Contact Resistance ..............................
  • Page 3 964i Series Operating Manual - December 12, 2022 Connection ................................21 SECTION 9 – PERIODIC MAINTENANCE ........................22 Relay Life ..................................22 Cleaning and Inspection .............................. 22 Calibration ................................... 22 SECTION 10 – PROGRAMMING VIA AN INTERFACE ..................... 23 General Command Syntax ............................23 Field Syntax ................................

  • Page 4: About This Manual

    964i Series Operating Manual - December 12, 2022 ABOUT THIS MANUAL This manual has been created with “clickable” links. Where a reference is made to another section of the manual, the user may click on the section name reference and the document will automatically go to that section.

  • Page 5: Warranty Information

    Any recommendations made by ViTREK or its representatives, for uses of its products are based on tests believed to be reliable, but ViTREK makes no warranties of the results to be obtained. This warranty is in lieu of all other warranties, expressed or implied and no representative or person is authorized to represent or assume for ViTREK any liability in connection with the sale of our products other than set forth herein.

  • Page 6: Section 1 - Product Information

    Option RM-1 allows for standard 19” rack mounting. CABLE OPTIONS Option VICL-2 provides a 6ft VICL cable for use between a 964i and either a 95x, V7X, or another 964i. Option RS-2 provides a 6ft RS232 cable for use with either a 95x or a computer.

  • Page 7: Section 2 - Terminals, Relays And Banks

    964i for the use of each terminal. Relay Numbers and Relay Bank Numbers The relays within the 964i are numbered from 1 through 64, the user should consult the relay and terminal configuration document supplied with the specific 964i to determine the use of each relay.

  • Page 8: Section 3 - Relay Cards

    964i Series Operating Manual - December 12, 2022 SECTION 3 – RELAY CARDS Each 964i is custom manufactured to user requirements. Consult the relay and terminal configuration document supplied with the specific 964i for details regarding relay content, terminal configuration and internal wiring.

  • Page 9: Lv Series

    964i Series Operating Manual - December 12, 2022 Specifications - Voltage Between any two connections: See Table Any connection to ground: See Table Frequency <500Hz. Carrying Current <1Arms continuous, <2Arms for <1 second. Switching Power HV7-xxx and HV10-xxx : <50W (resistive).
  • Page 10 The HC-4 card is a dual 4:1 multiplexing card; one multiplexer handles current up to 40Arms, and the other handles low currents. These are designed to multiplex AC Ground Bond measurements. Figure 3 shows the configuration available (other configurations are available, contact ViTREK with your specific requirements). Page 10 of 28...
  • Page 11 964i Series Operating Manual - December 12, 2022 Figure 3 • The lower numbered set of four relays is the high current type. The higher numbered set of four relays is the low current type. • As standard the individual multiplex connections are on terminals with the same number as the relay. A letter can be appended to the end of the part number indicating the color of the terminal (R = red or B = black).
  • Page 12 964i Series Operating Manual - December 12, 2022 Expected Life <1mA, <100Vdc switching : 5,000,000 operations. At max. switching power : 100,000 operations. Contact Resistance At terminals, <50% expected life operations (add 0.05Ω for <100% life). <0.15Ω (uncompensated). <0.05Ω (compensated).

  • Page 13: Section 4 - Safety

    PROXIMITY TO THE CONNECTIONS WHILE HIGH VOLTAGES ARE PRESENT. The insulation of the wiring to the terminals of the 964i must be rated for at least the highest voltage expected. When using high AC voltages, even if there is sufficient insulation, there may be significant capacitive coupling which can cause an unsafe current to flow to nearby objects and corona can occur even outside of the insulation.

  • Page 14: Section 5 -Installation

    INSTALLING IN A 19” RACK ENCLOSURE Often when installing the 964i into a rack enclosure it is desired to remove the feet from the bottom of the 964i. This is easily achieved by simply removing the screws mounting the feet to the bottom of the unit. The user should...

  • Page 15: Cooling

    If the 964i is to be controlled by a ViTREK 95x then either the user should connect the RS232 port of the 964i to the RS232 port of the 95x, or connect the VICL-IN port of the 964i to the VICL-OUT port of the 95x, as required for the control method to be used.

  • Page 16: Section 6 - Front Panel Operation

    The SWITCH STATE keys. This changes the displayed information as follows – ALL. Shows the state of all relays in the 964i as eight pairs of hexadecimal codes, one pair for each relay bank. Relay banks which are not fitted are shown as dashes. An example display showing that bank #7 is not fitted and relays 4 through 1 are closed, is –...
  • Page 17 964i Series Operating Manual - December 12, 2022 • The CONFIG keys. These allow the user to view (and alter for the IFACE key) the configuration of the 964i. IFACE. The presently selected interface and the configuration for that interface is displayed. The...

  • Page 18: Section 7 - Compensating For Leakage Currents And Contact Resistances

    When using the 964i with a ViTREK 95x, V7X, or V series the 964i contact resistance and the resistance of the wiring and connections between the 964i and the 95x, V7X, or V series unit can be corrected for by using the 95x, V7X, or V series ability to correct their resistance measurement zero.

  • Page 19: Leakage Currents

    964i Series Operating Manual - December 12, 2022 LEAKAGE CURRENTS When using the 964i with a ViTREK 95x series the 964i and wiring AC or DC leakage current can be corrected for by using the 95x ability to correct its’ leakage measurement zero.

  • Page 20: Section 8 - Connecting And Configuring Interfaces

    SECTION 8 – CONNECTING AND CONFIGURING INTERFACES The 964i contains several interfaces, some of which are options. This section describes how to configure and connect a computer to each interface. For details regarding connecting a 964i to a 95x or V7X, see Connecting to a ViTREK 95x or V series Tester.

  • Page 21: Connection

    GPIB selection is not available. • The display shows the GPIB address of the 964i in the right side of the lower line. If this is not showing the desired address – If needed, make the address the selected data (flashing between the data and blocks) by pressing the SELECT key.

  • Page 22: Section 9 - Periodic Maintenance

    RELAY LIFE The user should periodically check the MAINT indicator on the 964i front panel. If the indicator is illuminated, then at least one relay is beyond 50% of its’ expected life. If flashing, then it is over 100% of its’ expected life. The 964i should be serviced and the relay(s) replaced as needed.

  • Page 23: Section 10 - Programming Via An Interface

    This is effectively a “do nothing” set of commands. The 964i does not raise an error if an empty command is received in a set of commands, i.e. there are two or more consecutive command separators, or a command separator is immediately followed by a command terminator.

  • Page 24: Field Syntax

    Although all command keywords are shown using uppercase characters in this document, lowercase characters may also be used if desired. Command keywords must exactly match the defined set for the 964i. The first field in a command is always the command keyword. DATA.

  • Page 25: Delays And Timeouts

    Most standard GPIB bus commands are implemented in the normal fashion; however some cause a special activity in the 964i - Device Clear (SDC and DCL) - Either of these causes the 964i to clear all interface buffers and put all relays into the open state.

  • Page 26: Commands

    BANK,<NR1>,<NR1> 255) As an example, BANK,4,0xB9 causes the 964i to set relay numbers 39, 37, 36, 35 and 32 to the ON state, and all others in bank #4 to the OFF state Responds with the <HEX> code indicating the states of the relays in the bank number given by the <NR1>...

  • Page 27: Commanding Relays Which Are Not Installed

    948i. If the user previously used a 948i controlled by a 944i then the 964i can be used in place of the 948i. The user should take into account that the 944i could only control relay banks 0 through 5 however, so if the 964i contains relay banks 6 or 7 then they will be unaffected by the 944i.
  • Page 28 The SYST? response format is different for the 964i. The 948i responded with the states of banks 0 through 5 only, whereas the 964i responds with the states of all 8 banks. The user should either switch to using the 964i response format, or write the software to accommodate either response format if needed.

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