Uniblitz VMM-T1 User Manual

Shutter driver/timer

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1.800.828.6972

User Manual

VMM-T1 Shutter Driver Timer

14-0020

Version 2.00

2013

Table of Contents

Summary of Contents for Uniblitz VMM-T1

Page 1 1.800.828.6972 User Manual VMM-T1 Shutter Driver Timer 14-0020 Version 2.00 2013...
Page 2 For information regarding applicable intellectual property, please visit www.uniblitz.com/patents. Information in this publication supersedes that in all previously published material. Due to our ongoing development program, Vincent Associates reserves the right to discontinue or change specifications or designs, at any time, without incurring any obligation.
Page 3: Warranty
MANUFACTURER does not give any implied warranties of merchantability, fitness for a particular purpose, or of any other nature in connection with the sale of any Products. VMM-T1 User Manual...
Page 4: Table Of Contents
Voltage Change ......................12 Shutter Fuse Replacement ..................12 Initial Operation and Testing .................. 13 OPERATOR CONTROLS ..................... 15 VMM-T1 Front Panel Operator Controls ............. 15 VMM-T1 Rear Panel Operator Controls .............. 19 OPERATING BASICS ....................23 Function Switches ....................23 Gate Input .........................
Page 5: General Safety Summary
• Do Not Operate in an Explosive Atmosphere – To avoid injury or fire hazard, do not operate this product in an explosive atmosphere. Product Damage Precautions • Use Proper Power Source – Do not operate this product from a power source that applies more than the voltage specified. VMM-T1 User Manual...
Page 6 • Provide Proper Ventilation – To prevent product overheating, provide proper ventilation. • Do Not Operate with Suspected Failures – If you suspect there is damage to this product, have it inspected by qualified service personnel. VMM-T1 User Manual...
Page 7: Safety Terms And Symbols
These terms appear in this manual Warning statements identify conditions or practices that WARNING could result in injury or loss of life. Caution statements identify conditions or practices that CAUTION could result in damage to this product or other property. VMM-T1 User Manual...
Page 8: Preface
Preface This Manual provides information for the VMM-T1 Shutter Driver/Timer. The manual contains the following chapters: • Getting Started contains a brief product description, information needed to power on the driver and a brief procedure to verify that it functions.
Page 9: Getting Started
Getting Started Features The VMM-T1 Shutter Driver/Timer replaces the T132 controller. The VMM-T1 contains nearly all of the features of the T132 plus some new features which enhance the unit’s capability in even more demanding applications. These new features include: •...
Page 10: Introduction
0.1msec to 9999 seconds. Four-digit pushwheel switches provide exceptional resolution for use in a multitude of shutter applications, ranging from holography to microscopy. The VMM-T1 incorporates a state of the art shutter driver and relies on the user’s input signal to determine exposure and frequency.
Page 11: Line Fuse Replacement
AC module receptacle. 6. Connect the line cord to the AC line. 7. Please Note: The VMM-T1 power switch is located on the rear of the case. Please be sure that it is readily accessible at all times when in use.
Page 12: Voltage Change
3. Power the unit OFF and disconnect the line cord from the line voltage power source. 4. Position the VMM-T1 unit such that the front panel is facing you. If necessary, disconnect the shutter cable from the respective 7-pin SHUTTER connector on the rear panel.
Page 13: Initial Operation And Testing
Attach line cord to the unit first before plugging into the AC power source. 1. The VMM-T1 is manually selectable to operate from 115 VAC or 230 VAC (50-60Hz). PLEASE BE SURE THAT THE UNIT IS PROPERLY SET UP FOR THE LINE VOLTAGE TO BE USED.
Page 14 6 msec, the shutter may not open fully. 12. If the unit still does not operate properly, turn off and disconnect the unit. Please notify Vincent Associates immediately. There are no user-serviceable parts outside or inside of the unit. VMM-T1 User Manual...
Page 15: Operator Controls
8. DRIVER ACTIVE Indicator: Red LED indicates when the internal shutter driver circuit input has an active signal present. 9. ACTUATE Switch: Depressing this momentary pushbutton switch triggers the VMM-T1 EXPOSURE and DELAY timers from the front panel. 10. RESET Switch: A momentary pushbutton switch that inhibits all functions of the unit.
Page 16 The N.O./N.C. switch acts to invert the shutter operation. The position of this switch determines shutter status before a trigger signal is received by the VMM-T1. a. N.C. (Normally Closed): The shutter will be closed and commanded to open by an input pulse signal.
Page 17 Figure 2 – VMM-T1 Front Panel Operator Controls VMM-T1 User Manual...
Page 18 Notes VMM-T1 User Manual...
Page 19: Vmm-T1 Rear Panel Operator Controls
Note toggling the N.O./N.C. switch will not change the state of the PULSE OUTPUT. 3. RS-232C DB-9 female connector. Provides access to the VMM-T1 RS-232C interface allowing the user to control input functions via a computer RS-232C serial port. See RS-232C DB-9 female under EXTERNAL INPUT SPECIFICATIONS.
Page 20 Both +5.0 VDC and Ground are available in addition to an AUX DELAY signal. c. The VMM-T1 AUX output is now the DELAY timer output signal. d. An active-high pulse is delivered to this output equal to the length of the DELAY timer setting.
Page 21 The pulse duration determines the shutter exposure interval. b. The frequency of the signal presented to this input determines the frequency of shutter exposures. c. This input can be set active-high or active-low by FUNCTION switch B. See “FUNCTION SELECT” under GENERAL CHARACTERISTICS. VMM-T1 User Manual...
Page 22 Figure 3 – VMM-T1 Rear Panel Operator Controls and I/O VMM-T1 User Manual...
Page 23: Operating Basics
INPUT is selected to the active-low state (FUNCTION switch “A” in the DOWN position). When a stream of trigger pulses is sent to the TRIGGER INPUT and the GATE INPUT is in the HIGH state (TTL logic “1”, +5V), the VMM-T1 will operate as described in the “OPERATOR CONTROLS” section.
Page 24 (or GATE INPUT duration) is equal to the trigger period times the number of exposures desired. Please note: The VMM-T1 TRIGGER INPUT triggers the internal timers. The EXP PRESET will determine the number of cycles which is the combination of EXPOSURE and DELAY time.
Page 25: Rs-232C Operation
INPUT SPECIFICATIONS) to the unit’s RS-232C interface. Connect the Tx (transmit) from the host to the Rx (receive) on the VMM-T1 control unit. All other lines are not used except for the ground connection. If the host contains a 25-Pin D-Sub or an 8-Pin Mini-DIN, check the computer’s user manual to find the proper corresponding pin-outs.
Page 26 Up to eight VMM-T1 controllers can be daisy-chained together (connected through the same serial port) using the 910RSDC cable. One cable is required for each controller in the chain. Figure 5 illustrates connecting two controllers from a single serial port. Once connected, each unit will require a unique address in the chain.
Page 27: Rs-232C Test Program
Associates at our web site (www.uniblitz.com), via e-mail (vincentassociates@uniblitz.com), or calling (800) 828-6972. Other programs may be available, please contact technical support for further information. REM PROGRAM TO SEND COMMAND PULSES TO RS232C INTERFACE AND VMM-T1 REM WRITTEN BY STEVE PASQUARELLA, VINCENT ASSOCIATES. REM LAST REVISION 7/29/99 BY RICHARD ST.LOUIS REM COMPUTER LANGUAGE USED –...
Page 28 ELSE GOTO START END IF WEND TIMEOUT: FOR I = 1 TO 100: NEXT I CLS 0 RETURN ADDRESS: IF B$ = "X" OR B$ = "x" THEN J = 64 C$ = "X" ELSEIF B$ = "0" THEN VMM-T1 User Manual...
Page 29 J = 224 C$ = "6" ELSEIF B$ = "7" THEN J = 240 C$ = "7" ELSE J = 64 C$ = "X" END IF PRINT "STARTING ASCII DECIMAL # = ", J GOSUB TIMEOUT CLS 0 RETURN VMM-T1 User Manual...
Page 30: Shutter Frequency Of Operation
The repeat exposure specification as listed in this manual is specified at 35 ms. This is an optimum value to ensure enough pulse energy to open any UNIBLITZ shutter. However, the VMM-T1 is capable of operating each Vincent shutter to its maximum frequency with a slight sacrifice in shutter opening speed.
Page 31: Pulse Voltage Graphs
5 msec. 50.0 40.0 30.0 msec. msec. msce. msec. msce. 20.0 msec. msec. 10.0 10.0 13.3 15.0 17.2 20.0 22.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 Frequency Figure 7: Pulse Voltage vs. Frequency VMM-T1 User Manual...
Page 32: Dimensions
Although the stability of the drive voltage is checked and calibrated prior to shipment, it may become necessary to make some minor adjustments to the operating systems of the VMM-T1 over time. It is highly recommended that if a problem is suspected that the unit be returned to the factory for checkout, adjustment and calibration.
Page 33: General Care
Inspection and Cleaning Inspection – Exterior Inspect the outside of the VMM-T1 for damage, wear, and missing parts. A device that appears to have been dropped or shows other signs of exterior damage should be checked thoroughly to verify correct operation and performance.
Page 34: Specifications
• Maximum peak pulse power 400 W Shutter Drive • Pulse voltage 70 VDC • Pulse current 5.7 A (test conditions: VS35 shutter, standard 5 Volt, 12 ohm coil cycled with 20 ms exposure at 5 Hz). VMM-T1 User Manual...
Page 35: External Input Characteristics
GATE INPUT (BNC) applied to TRIGGER Input • Maximum pulse width determined by multiple of Rear Panel TRIGGER signal period • TTL compatible - Minimum high-level +2.0 VDC - Maximum low-level +0.8 VDC - Sink current 1.0 µA VMM-T1 User Manual...
Page 36 • 8 local address locations for commands (see "ADDRESS SELECT" specification for switch settings of local address locations). Also see RS-232 Test Program. Global Address Codes RS232C Commands Decimal Octal Binary ASCII Open 01000000 Close 01000001 Trigger 01000010 Reset 01000011 VMM-T1 User Manual...
Page 37: External Output Characteristics
• +5.0 volt DC regulated output provided for use +5V (AUX Pin 3) Rear Panel in remote switching and/or control circuits. • 0 VDC ground reference provided for AUX GND (AUX Pin 2) Rear Panel output pins (located on rear panel). General Characteristics Name Description VMM-T1 User Manual...
Page 38 BNC inputs and outputs FUNCTION Select • Slide-switch E allows the selection of Rear panel additional pulse energy for 35 mm and larger shutters. • These 5 switches are banked together. VMM-T1 User Manual...
Page 39 Size (HWD) • 3.50 lbs (1.59 kg) Weight • 80% at +31º C (+88 º F) ambient decreasing Relative Humidity linearly to 50% at +40 º C (104 ºF) • Degree 2 Pollution • Category II Overvoltage VMM-T1 User Manual...
Page 40 • Model 710R/F Remote footswitch trigger cable for use with active-low BNC • Model 910RSDC RS-232C interconnect cable for daisy-chain applications (One (1) cable required per unit in the chain) • Model 910RS RS232C interconnect cable for serial port VMM-T1 User Manual...
Page 41: Index
Auxiliary output, 9 Auxiliary Terminal, 23 External Input Characteristics, 41 EXTERNAL OUTPUT CHARACTERISTICS, 23 Baud rate, 42 BNC, 14, 21, 22, 23, 24, 26, 41, 42, 43 Features, 9 Front Panel Operator Controls, 16 Caution, 35 FUNCTION Select, 44 VMM-T1 User Manual...
Page 42 RESET INPUT, 29, 46 RESET switch, 17, 18 N.O., 18 N.O./N.C. switch, 14, 17, 18, 21, 22 RS-232C, 10, 17, 18, 21, 29, 35, 42 N.O./N.C. Toggle switch, 17 RS232C Commands, 42 Normally Closed, 18 RS-232C Operation, 29 VMM-T1 User Manual...
Page 43 Switch E, 23, 26 Ventilation, 6 Switches A – D, 26 Visual inspection, 35 Switches A-D, 23 VMM-T1, 10, 14, 16, 17, 19, 21, 22, 23, 26, 27, 29, 30, 32, SYNC, 14 35, 43 SYNC ACTIVE, 14 Voltage Change, 11, 12...