Uniblitz VMM-T1 User manual

User Manual
VMM-T1 Shutter Driver Timer
14-0020
Version 2.00
2013
1.800.828.6972

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.
Version 2.00
2013
Vincent Associates, a Division of VA, Inc., 803 Linden Ave., Rochester, NY 14625
Tel: [phone] Fax: [phone]
UNIBLITZ is a registered trademark of VA, Inc.
Printed in the U.S.A.

VMM-T1 User Manual 3
Warranty
LIMITED PRODUCT WARRANTY: All Products manufactured by VINCENT ASSOCIATES®
(MANUFACTURER) are warranted to meet published specifications and to be free of defects in
materials and workmanship as defined in the specifications for 365 days - one year - (WARRANTY
PERIOD) from the date of original shipment of the product. DSS series shutters are additionally
warranted to achieve two million cycles within the WARRANTY PERIOD (as defined in the CYCLE
WARRANTY CRITERION). MANUFACTURER will, at its own option within the WARRANTY
PERIOD, repair or replace without charge any listed item discovered to be defective excepting
transportation charges. Burned out or otherwise damaged actuator coils are not covered under this
warranty. Any defective product returned to the MANUFACTURER must follow the RETURN
MATERIAL AUTHORIZATION PROCEDURE as defined below. This warranty does not extend to
cover damage resulting from alteration, misuse, negligence, abuse, normal wear and tear, or accident.
The MANUFACTURER will consider the return of unused equipment if returned within 30 days from
the original date of shipment, subject to a 20% restocking charge. This offer does not apply to used or
damaged equipment. This warranty extends only to the original purchase and is not available to any
third party, including any purchaser assemblies or other Products of which the goods may become
component equipment.
CYCLE WARRANTY CRITERION: One "cycle" is considered one open and one closure of the shutter.
DSS Shutter must be operated with the ED12DSS driver or equivalent H-Bridge type shutter driver
circuit at +10.7VDC across the actuator coil for the specified duration. DSS Shutter must be operated
within the defined environmental, electrical and mechanical specifications as listed on the device's data
sheet. After one year (WARRANTY PERIOD), the cycle warranty is null and void. If returned, the
device must be accompanied by a written statement indicating the approximate number of cycles
contained on the device, include all parameters to which the shutter was operated and follow the
RETURN MATERIAL AUTHORIZATION PROCEDURE as defined below.
RETURN MATERIAL AUTHORIZATION PROCEDURE: MANUFACTURER will only accept
returned Products from customers that have obtained an RMA (Return Material Authorization) number
from the MANUFACTURER. The customer must also include an itemized statement of defect(s). The
Product will then be evaluated per the MANUFACTURER'S standard repair guidelines. Any Product
which has been returned to the MANUFACTURER but which is found to meet the applicable
specifications and not defective in materials and workmanship shall be subject to the
MANUFACTURER's standard evaluation charge. The MANUFACTURER assumes no liability for
customer returned material.
LIMIT OF LIABILITY: The buyer's exclusive remedy and the limit of MANUFACTURER'S liability
for any loss whatsoever shall not exceed the purchase price paid by the buyer for the goods to which a
claim is made. 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 4
TABLE OF CONTENTS
WARRANTY.....................................................................................................................3
GENERAL SAFETY SUMMARY..................................................................................5
Injury Precautions .....................................................................................................5
Product Damage Precautions....................................................................................5
Safety Terms and Symbols........................................................................................7
PREFACE..........................................................................................................................8
GETTING STARTED ......................................................................................................9
Features.......................................................................................................................9
Introduction..............................................................................................................10
Start Up.....................................................................................................................10
Line Fuse Replacement............................................................................................11
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.................................................................................................................23
RS-232C Operation..................................................................................................25
RS-232C Test Program............................................................................................27
Shutter Frequency of Operation.............................................................................30
Trigger Cautions and Trouble Shooting Tips .......................................................30
Pulse Voltage Graphs...............................................................................................31
Dimensions................................................................................................................32
Maintenance .............................................................................................................32
General Care.............................................................................................................33
Inspection and Cleaning..........................................................................................33
Inspection – Exterior ........................................................................................33
Cleaning Procedure – Exterior .........................................................................33
Inspection – Interior .........................................................................................33
Cleaning Procedure – Interior ..........................................................................33
SPECIFICATIONS.........................................................................................................34
System Characteristics.............................................................................................34
External Input Characteristics ...............................................................................35
External Output Characteristics ............................................................................37
General Characteristics...........................................................................................37
INDEX..............................................................................................................................41

VMM-T1 User Manual 5
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to this product or any
products connected to it. To avoid potential hazards, use the product only as specified.
Only qualified personnel should perform service procedures.
Injury Precautions
•Use proper Power Cord – To avoid fire hazard and risk of personal injury use only the power
cord supplied with this product.
•Avoid Electric Overload – To avoid electrical shock or fire hazard do not apply a voltage to a
terminal that is outside the range specified for that terminal.
•Avoid Electric Shock – To avoid injury or loss of life, do not connect or disconnect line cord
while it is connected to the line voltage.
•Ground the Product – This product is grounded through the grounding conductor of the power
cord. To avoid electrical shock, the grounding connector must be connected to earth ground.
Before making connections to the input or output terminals of the product, ensure that the
product is properly grounded. DO NOT DEFEAT THE GROUND CONNECTION ON THE
SUPPLIED LINE CORD.
•Access to On/Off Switch – Due to the location of the unit’s On/Off switch on the rear panel, do
not position the unit such that the On/Off switch is difficult to access and operate while installed
and in use.
•Do Not Operate Without Covers – To avoid electric shock or fire hazard, do not operate this
product with case or panels removed.
•Use Proper Fuse – To avoid fire hazard, use only the fuse type and rating specified for this
product.
•Do Not operate in Wet/Damp Conditions – To avoid electric shock, do not operate this product
in wet or damp conditions.
•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 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 7
Safety Terms and Symbols
These terms appear in this manual
CAUTION
Warning statements identify conditions or practices that
could result in injury or loss of life.
Caution statements identify conditions or practices that
could result in damage to this product or other property.
WARNING

VMM-T1 User Manual 8
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.
•Operator Controls provide an outline of the panel control functions and locations at the front and
rear panels. This also includes the location and function of the input/output signals.
•Operating Basics gives further details to the operational features of the controllers.
•Specifications are described for all input/output levels as well as timing accuracy of the VMM-
T1 Shutter Driver/Timer including other pertinent details and information required for the RS-
232 interface.
•Index contains a full index.
What follows is the complete operator’s manual for the UNIBLITZ

VMM-T1 Shutter
Driver/Timer.Please read this manual completely before operating your unit. Due to the
construction of this unit, we recommend that the unit be returned to the manufacturer for
repair, no user-serviceable parts inside.

VMM-T1 User Manual 9
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:
•An addressable RS-232 input. Eight units can be daisy-chained together via the RS-232 input
connector (DB-9 female) and the user can select an address for each unit at the rear panel
through the use of the ADDRESS switch.
•Switching capability on all BNC input jacks to provide either an active-high or active-low logic
trigger level.
•An Auxiliary (AUX) output that is the DELAY timer output, on a three-pin terminal located on
the rear panel. This terminal also includes pins for +5VDC and Ground.
•A GATE INPUT which allows the user to select a single or multiple trigger signals from a
stream of trigger signals.
•An EXPOSURE PRESET (EXP PRESET) control which combines the functions of the
NORM/CONT switch of the previous Model T132 and an exposure counter. The user can pre-
select a number of exposures per trigger signal from 1 to 99. By selecting the EXP PRESET to
00 the unit will re-trigger continuously.
•A user-configurable AC input module. This AC input module includes the AC power cord input
receptacle, power switch, dual 3AG, 0.5A time-lag (slo-blo) line fuses (For 115 VAC
operation), line voltage change-over fuse block, and line filter. Dual 3AG, 0.25A time-lag (slo-
blo) line fuses for 230 VAC operation are supplied.

VMM-T1 User Manual 10
Introduction
The UNIBLITZ VMM-T1 is capable of controlling all shutter types in the UNIBLITZ product line. The
VMM-T1 incorporates two precise timers to control shutter exposure and delay intervals. Each timer
has a range from 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.
Another feature of the VMM-T1 is the PRE or POST exposure delay. The PRE/POST toggle switch
allows the user to actuate the shutter immediately upon receipt of a trigger signal or delay the
EXPOSURE for a predetermined period. The period of the DELAY interval is determined from the
front panel DELAY TIME SELECT. The DELAY signal is provided to the AUX output terminal
located at the rear panel. In addition to the PRE/POST DELAY, the VMM-T1 can re-trigger itself
continuously to provide low level chopper control. By selecting the EXP PRESET pushwheel switch to
“00”, the DELAY interval control acts as the recycle interval to determine the exposure frequency. The
unit will run continuously until reset. By selecting any value between 01 and 99 the shutter will trigger
for the number of exposures selected.
The VMM-T1 contains an addressable RS-232C input. By using the Model 910RSDC daisy-chain
cable, multiple controllers can be connected and controlled. Eight separate addresses are available
which allows up to eight units to be individually controlled by a single computer serial port.
The patented driver design of the VMM-T1 allows the controller to operate all shutter types in the
UNIBLITZ product line.
A Model 710C, 7-pin female to 7-pin male (3 meter length), shutter interconnect cable is also included
with each unit.
Start Up
After unpacking the unit, inspect for any obvious defects and that all manufacturer supplied materials
are present.
If a problem is found or a part (or parts) is missing, please contact Vincent Associates immediately for
problem resolution. Do not attempt to connect the unit if defects or damage are noted until Vincent
Associates has been contacted and the problem resolved.
After the initial inspection the unit is ready to use. To properly install and power on the VMM-T1,
please follow the procedure below.
1. Check for proper electrical connections. Please note the label covering the AC input module. It
is there as a reminder to re-configure the AC input module if the unit requires operation at
230VAC. The VMM-T1 is shipped with the proper fuses for 115 VAC operation installed (two
3AG, 0.5A time-lag (slo-blo)). See “Voltage Change” instructions elsewhere in this manual.
CAUTION
This label must be removed prior to inserting the power cord into the
AC input receptacle regardless of which AC voltage level is used.
Caution statements identify conditions or practices that could result in

VMM-T1 User Manual 11
2. Remove the label before proceeding.
3. Check the line fuses to be sure they are the proper rating. For 230 VAC operation, change the
two line fuses to two 3AG, 0.25A time-lag (supplied). See “Line Fuse Replacement”
instructions elsewhere in this manual.
4. Be sure the AC module power switch is toggled to the “0” position and the line cord is NOT
connected to the AC line.
5. Connect the supplied line cord to the rear panel AC module receptacle. Be sure the cord is
inserted completely into the 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.
8. Power ON the unit by toggling the AC module power switch to the “1” position. Power LED
indicator will illuminate.
Line Fuse Replacement
1. A small flat-bladed screwdriver or similar tool is needed to complete this procedure. Please refer
to Figure 1.
2. BE SURE THE LINE CORD IS DISCONNECTED FROM THE LINE VOLTAGE
POWER SOURCE. DO NOT CONTINUE WITH THIS PROCEDURE WITHOUT
REMOVING THE LINE CORD FROM THE VMM-T1.
3. Unplug the line cord from the AC module receptacle of the VMM-T1.
4. Position the VMM-T1 unit so that the rear panel is facing.
5. Please refer to Figure 1. Using the small flat-bladed screwdriver or similar tool, insert the tool
into the cover door slot, gently pry open cover door.
6. Insert the tool into the fuse holder slot and gently pry out the fuse holder block.
7. Remove defective fuse(s); replace with new fuse(s).
8. Replace fuse holder into housing.
9. Close the cover door.
To avoid injury or death, unplug the line cord from the line
voltage power source before continuing.
WARNING

VMM-T1 User Manual 12
Figure #1 - AC Input Module
Voltage Change
1. Please refer to Figure #1.
2. Repeat steps 1 – 6 in “Line Fuse Replacement” instructions.
3. To change from 115 VAC to 230 VAC, rotate the fuse holder block 180°.
4. Remove the two 3AG, 0.5A time-lag fuses and replace with two 3AG, 0.25A time-lag fuses.
(Note: Be sure to change fuses back to 3AG, 0.5A time-lag fuses when changing back to 115VAC
operation).
5. Replace fuse holder block and close the cover door. The desired line voltage will be indicated in
the cover door window.
Shutter Fuse Replacement
1. Please refer to Figure 2 for VMM-T1 front panel layout.
2. A medium flat-bladed screwdriver or similar tool is needed to complete this procedure.
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.
To avoid injury or death, unplug the line cord from the line
voltage power source before continuing.
WARNING

VMM-T1 User Manual 13
5. Using the screwdriver, or similar, insert the tool into the slot on the SHUTTER FUSE cap, apply
slight inward pressure and rotate the cap 1/8 turn, counterclockwise. The fuse cap will pop out
slightly.
6. Remove the fuse cap and fuse.
7. Replace the fuse with a known good one. Shutter fuse is a 0.6A, 5 x 20 mm, time-lag (slo-blo)
type.
8. Reverse the procedure to re-install the fuse cap, reconnect all cables and power the unit back up.
Initial Operation and Testing
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. Refer to the “Voltage Change” section of this manual for further
information and procedures.
2. Once the line cord has been attached to unit and connected to properly grounded wall receptacle,
the unit may be energized. See “Start Up” section.
3. Insert the 7-pin male connector of shutter interconnect cable into 7- pin female receptacle at rear
of unit labeled SHUTTER.
4. Connect the 7-pin female connector of the shutter interconnect cable to 7-pin male connector on
shutter to be driven.
5. Place VMM-T1 POWER switch to the ON “1” position, the POWER LED will illuminate.
6. Place the N.O./N.C. switch into the N.O. position. The shutter will open and remain open until
the switch is returned to the N.C. position. The DRIVER ACTIVE LED will illuminate when
this switch is in the N.O. position.
7. All UNIBLITZ drivers provide the circuitry necessary to support shutters equipped with the
Solid State Synchronization option. Simply plug the shutter interconnect cable into the driver. If
the shutter is equipped with the Solid State Synchronization option, the green LED labeled
SYNC ACTIVE will illuminate when the shutter is in the open position. In addition, the SYNC
Output BNC will change to the active state when the shutter is open. The absence of the solid
state synchronization option will inhibit the operation of the SYNC output and SYNC ACTIVE
LED. The remainder of the VMM-T1 systems will not be affected.
8. See specifications and operator controls for additional operational information concerning other
features of the VMM-T1
9. Should the shutter and/or controller not respond as described previously, be sure line cord is
installed into the receptacle and connections to the shutter are properly made. Note that the
shutter output is also fused. The fuse is located on the front panel and is a 0.6A, 5 x 20 mm,
WARNING: Be sure power switch is in the off position
before connecting the power cord to line. Attach line cord
to the unit first before plugging into the AC power source.
WARNING

VMM-T1 User Manual 14
time-lag. Check this fuse for failure. Please refer to the SHUTTER FUSE REPLACEMENT
section of this manual.
10. Be advised, a visual inspection of a fuse is usually NOT an adequate test to determine if a fuse
has failed. Use a DMM (Digital Multi-Meter) or equivalent test device to determine fuse
continuity.
11. Additionally, please note that particular shutter units respond to different minimum pulse widths.
For example, a standard VS25 shutter has a minimum exposure pulse of 6 msec. If the timing is
set for an exposure pulse width less than 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.
CAUTION
Turn off the unit and remove the plug from the AC source before
checking for blown fuses

VMM-T1 User Manual 15
Operator Controls
VMM-T1 Front Panel Operator Controls
Please refer to Figure 2.
1. DELAY TIMER Select:
Four pushwheel switches that determine the DELAY timing range. The total delay interval will
be the product of the DELAY TIMER SELECT and DELAY MULTIPLIER. Each depression
of the (+) key increases each digit by one, the (-) key decreases each digit by one.
2. DELAY LED Indicator:
Green LED indicates when DELAY timer is active.
3. EXPOSURE TIMER Select:
Four pushwheel switches that determine the EXPOSURE timing range. The total exposure
interval will be the product of the EXPOSURE TIMER SELECT and EXPOSURE
MULTIPLIER. Each depression of the (+) key increases each digit by one, the (-) key decreases
each digit by one.
4. EXPOSURE LED Indicator:
Green LED indicates when EXPOSURE timer is active.
5. EXPOSURE MULTIPLIER Switch:
A 5-position rotary switch. Clockwise rotation increases the magnitude of the EXPOSURE
interval by a factor of 10.
6. EXP. PRESET Select:
Two pushwheel switches that determine the number of exposure cycles the unit will count up to
per trigger input. A setting of “00” allows the unit to run continuously until reset. In the “00” or
continuous setting, the time between exposures is determined by the DELAY time interval.
7. SYNC. ACTIVE Indicator:
Green LED indicates the status of the Solid State Synchronization system. LED is illuminated
when the shutter's electronic SYNC sensor is active. This LED functions only if the shutter used
is equipped with the Solid State Synchronization system.
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. Depress this switch to
reset both the EXPOSURE and DELAY timers, and return all outputs to their original state.
Shutter state will be returned to the status set by the N.O./N.C. switch.

VMM-T1 User Manual 16
Please note if an OPEN command is sent to the RS-232C input a RESET command will not clear
the RS-232C output and the shutter will not close. A CLOSE command must be sent to allow the
shutter to close. If it is desired to have the shutter close with a RESET command or the RESET
switch the shutter must be opened with a TRIGGER command. In this case the shutter will either
close, upon reset, or return to the state as set by the N.O./N.C. switch.
11. PRE/POST Toggle Switch:
Position of this switch determines if DELAY interval occurs before (PRE) or after (POST) the
EXPOSURE interval.
a. PRE mode: Delays the start of the shutter EXPOSURE interval until the end of the
DELAY interval.
b. POST mode: The DELAY timer is triggered at the conclusion of the EXPOSURE
interval.
c. In PRE or POST the DELAY (AUX) output will go high for the duration of the DELAY
interval when the DELAY timer is active.
12. POWER LED Indicator:
Red LED, when lit indicates the unit is powered.
13. SHUTTER FUSE.
Replace with 5 x 20 mm, 0.6A time-lag (slo-blo) fuse.
Please note: This fuse may fail if the shutter is operated at an excessive frequency and duty cycle
to protect the coil from premature failure. If the operation of the shutter used is causing
“nuisance blowing” of this fuse, please contact technical support to discuss your application.
14. N.O./N.C. Toggle switch:
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.
b. N.O. (Normally Open): The shutter will be open and activated to close by an input pulse
signal.
c. Any RESET command will return the shutter to the position determined by the N.O./N.C.
switch.
d. Please note if an OPEN command is sent to the RS-232C input, a RESET command will
not clear the RS-232C output and the shutter will not close. A CLOSE command must be
sent to allow the shutter to close. If it is desired close the shutter or return it to the state
set by the N.O./N.C. switch with a RESET command or by the RESET switch, the shutter
must be opened with a trigger command.)
15. DELAY MULTIPLIER switch:
A 5-position rotary switch. Clockwise rotation increases the magnitude of the DELAY interval
by a factor of 10.

VMM-T1 User Manual 17
VINCENT
ASSOCIATES
A
V
Figure 2 – VMM-T1 Front Panel Operator Controls

VMM-T1 User Manual 18
Notes

VMM-T1 User Manual 19
VMM-T1 Rear Panel Operator Controls
Please refer to Figure 3.
1. ADDRESS SELECT switch:
Rotation of the 8-position octal rotary switch selects the active RS-232C address of the unit. See
ADDRESS SELECT under GENERAL CHARACTERISTICS.
2. PULSE OUTPUT BNC.
a. Active-low output.
b. The duration of this pulse is equal to the duration of the shutter exposure pulse.
c. This output can be used to daisy-chain VMM-T1 units together.
d. A TTL exposure pulse input to the PULSE INPUT BNC will appear at the PULSE OUTPUT
BNC.
e. 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.
4. TRIGGER INPUT BNC:
a. Opens the shutter on the first pulse trigger edge.
b. Closes the shutter on the next trigger edge.
c. Pulse starts EXPOSURE and DELAY interval sequence.
d. This input operates in conjunction with the GATE INPUT BNC.
e. When the GATE INPUT is active (default selection) the TRIGGER INPUT will be enabled.
f. This input can be set active-high or active-low by FUNCTION switch A. See “FUNCTION
SELECT” under GENERAL CHARACTERISTICS.
5. RESET INPUT BNC:
Inhibits VMM-T1 timing functions and both the DELAY and EXPOSURE timers are RESET.
Please note if an open command is sent to the RS-232C input, a RESET command will not clear
the RS-232C output and the shutter will not close. A CLOSE command must be sent to force the
shutter to close. If it is desired to have the shutter close or return to the state as set by the
N.O./N.C. switch with a RESET command the shutter must be opened with a trigger command.
This input can be set active-high or active-low by FUNCTION switch C. See “FUNCTION
SELECT” under GENERAL CHARACTERISTICS.
6. GATE INPUT BNC:
a. An active signal present at this input will enable trigger signals presented to the TRIGGER
INPUT BNC. (An unused GATE INPUT is in the active state.)

VMM-T1 User Manual 20
b. When the applied signal goes inactive, the TRIGGER INPUT will disable. In this way, the
user can effectively “gate” a stream of trigger pulses and allow one or more to be received, as
determined by the user.
c. This input can be used to “pick” a pulse or pulses from a series of trigger pulses presented to
the TRIGGER INPUT.
d. This input must be used in conjunction with the TRIGGER INPUT BNC.
e. This input can be set active-high or active-low by FUNCTION switch D. See “FUNCTION
Select” under GENERAL CHARACTERISTICS.
7. SHUTTER Output 7-pin Connector.
A 7-pin female connector to mate with 7-pin male plug of the Model 710C interconnect cable
included with the unit. Pin-out as follows:
a. Pin A - Shutter Actuator Coil Drive Send
b. Pin B - Shutter Actuator Coil Drive Return
c. Pin C - Sync Emitter Diode Source
d. Pin D - Sync Ground
e. Pin E - Sync. Detector Transistor Output
f. Pin F - +6.75 VDC Sync Power Source
g. Pin H - Shutter Ground
8. 115 VAC 60Hz. /230 VAC 50Hz Input Module.
Mates with female IEC plug on supplied line cord. Includes the following additional functions:
a. Power switch – “0” is off, “1” is on.
b. Power fuses: 3AG, 0.5A, time lag (slo-blo) for 115 VAC 60Hz (2 required), 3AG, 0.25A,
time lag (slo-blo) for 230 VAC 50Hz (2 required). See “LINE FUSE REPLACEMENT”
instructions.
c. Voltage change switchover block. See “VOLTAGE CHANGE” instructions.
d. 3Amp line filter. (Internal, not user accessible)
9. AUX/GND/+5V Auxiliary Terminal:
a. A 3-pin pluggable terminal block connector.
b. 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. See “DELAY Out (AUX Pin 1)” under EXTERNAL OUTPUT
CHARACTERISTICS.
10. FUNCTION switches:
Five sub-miniature slide switches.
a. Switches A
−
D are used to select the active states of each of the four input BNC connectors.