Analytic Systems VTC615 Series User manual

INSTALLATION &
OPERATION MANUAL
VTC615 SERIES
Voltage Converter
8128 River Way, Delta B.C. V4G 1K5 Canada T. 604.946.9981 F. 604.946.9983 TF. 800.668.3884 (US/CANADA)
www.analyticsystems.com
An ISO9001 and AS9100 Registered Company Battery Chargers •Inverters •Power Supplies •Voltage Converters

Copyright (2005-2014) Analytic Systems Ware (1993) Ltd.

3
IMPORTANT & SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS — This manual contains important safety and operating
instructions for this voltage converter.
2. Do not expose this voltage converter to rain or snow.
3. Use of an attachment not recommended or sold by the voltage converter manufacturer
may result in a risk of re, electric shock, or injury to persons.
4. Do not disassemble this voltage converter; take it to a qualied serviceman when service
or repair is required. Incorrect reassembly may result in a risk of electric shock or re.
5. To reduce risk of electric shock, disconnect this voltage converter from it power source
before attempting any maintenance or cleaning. Turning off the controls will not reduce
this risk.
6. CONVERTER LOCATION
i. Never place converter directly above battery; gases from battery will corrode and
damage converter.
ii. Never allow battery acid to drip on converter when reading gravity or lling battery.
7. DC CONNECTION PRECAUTIONS
i. Connect and disconnect DC output connections only after setting converter switch to
off position.
Analytic Systems, does not recommend the use of the VTC615 Series Voltage Converters
in life support applications where failure or malfunction of this product can be reasonably
expected to cause failure of the life support device or to signicantly affect its safety or
effectiveness. Analytic Systems does not recommend the use of any of its products in direct
patient care.
Examples of devices considered to be life support devices are neonatal oxygen analyzers,
nerve stimulators (whether used for anesthesia, pain relief, or other purposes), autotransfu-
sion devices, blood pumps, debrillators, arrhythmia detectors and alarms, pacemakers,
hemodialysis systems, peritoneal dialysis systems, neonatal ventilator incubators, ventilators
for both adults and infants, anesthesia ventilators, and infusion pumps as well as any other
devices designated as “critical” by the U.S. FDA.

4
Introduction
All new Current Mode switching design offers increased power and reliability in a compact
package. Extra input and output ltering reduce EMI to extremely low levels. Reliability
features include an input fuse, thermal shutdown, current limiting, reverse battery hookup
protection and output short circuit shutdown with automatic recovery. The output voltage
is easily adjusted 1.0 volts above or below the standard output voltage. An output overvolt-
age crowbar circuit protects devices connected to the converter. The VTC615 Series Voltage
Converter supplies either 12, 24, 32 or 48 VDC from a 24, 36, 48 or 72 VDC power source.
Other input or output voltages up to 72 volts are also available by special order. High quality
digital meters can be added (factory option) to allow monitoring of output current and output
voltage.
Specications
Input Voltages
Nominal (ip) 24 36 48 72
Actual ** 20 – 35 **30-45 ** 40 – 60 ** 65 – 90
Input Amps (max) 39.5 27.1 20.3 12.6
Input Fuse 3 x ATC-15 2 x ATC-15 1 x ATC-25 1 x ATC-20
Output Voltages
Nominal (op) 12 24 48
Actual 13.6 ± 0.05V 27.2 ± 0.05V 54.4 ± 0.05V
Output Adjustment ± 1.0 Volts
Output Amps (cont) 0 - 40 0 - 20 0 - 10
Output Amps (max) 45 25 12.5
Output Crowbar 16.0 ± 0.5 V 32 ± 1.0 V 63.9 ± 2.0 V

5
Switching Frequency 60 ± 2 KHz
Idle Power < 10 Watts
Noise on Input < 50 milli-Volts
Noise on Output < 50 milli-Volts
Transient Response < 2V for 50% Surge (Output Amps/2)
Efciency > 85 % @ maximum output
Temp. Range -25 to 40 deg. C @ maximum output
Isolation Input-Output & Input-Case 1500 Vdc (500 Vdc @ 24 V In),
Output-Case 500 VDC (1500Vdc @ 48 V Out)
Dimensions 14.5 x 10 x 4 in / 37 x 25 x 10 cm
Clearance 1 Inch (2.5 cm) all around
Material Marine Grade Aluminum
Finish Black Powder Epoxy
Fastenings 18-8 Stainless
Weight 7.2 lb / 3.3 kg
** Actual startup is at 22, 42, or 67Vdc Input, depending on model
* Specications subjects to change without notice.
Designed and manufactured by: ANALYTIC SYSTEMS WARE (1993) LTD.
8128 River Way
Delta, BC V4G 1K5 Canada
p. 604.946.9981 f. 604.946.9983
tf. 800.668.3884 US/Canada
www.analyticsystems.com [email protected] Revised September 2014

6
Installation
MOUNTING
Mount the unit in a DRY location. Allow at least 4 inches of clearance around it for adequate
cooling.
POWER CONNECTION
The unit is supplied with power leads about 3 feet long. This should normally be adequate to
connect to a source of power. If you must extend the power leads, be sure to use at least a
good quality (typeTEW) wire of at least the same gauge as supplied with the unit. The wire
colours are
All connections should be made inside an appropriate junction box. Refer to the specications
table for the correct sizing of the circuit breaker in the distribution panel.
A ground stud is provided to bond the chassis to local ground to reduce or eliminate EMI.
OUTPUT CONNECTIONS
Two Positive output terminals and two Negative output terminals are provided. Connect only
one wire to each terminal. Ensure that the total average load connected does not exceed the
continuous current rating of the unit.
LOAD SHARE OPTION
The units may be congured for load sharing if they are equipped with the optional output
isolation diodes. To conrm that your unit has these diodes, use an ohmmeter to
Red - Positive Black- Negative
measure the resistance between the two positive output terminals. If the diodes are present
the terminals will measure as not connected. If the diodes are NOT present, the terminals
will measure as a short circuit. Assuming the output isolation diodes are present, connect one
4 foot piece of #14 AWG red wire to each positive output terminal. Connect all the positive
wires to a distribution bus, or connect them together, and then connect from the common
point to the load using the correct gauge of wire for the total output capability of all the

7
Operation
Turn the switch on the top of the unit on to energize the outputs. The green ‘Output On’
indicator light will glow to indicate the proper operation of the unit.
OUTPUT ADJUSTMENT
The unit has an adjustment potentiometer to allow up to ± 1.0V adjustment of the output
voltage. This potentiometer is accessed through a small hole in the top of the voltage
converter. As shipped from the factory, the unit is preset for a voltage of 13.6, 27.2, 36.3 or
54.4VDC. If you wish to adjust this voltage, remove the cover plate (secured by 2 screws) to
expose the Output Adjust potentiometer. Reach in with a very small at blade screwdriver
to rotate the potentiometer. Clockwise increases the output voltage and counter clockwise
decreases it. When you are done, replace the cover plate and securely tighten the screws.
METERS
A high quality digital meter can be added to the voltage converter (factory installed only).
The meter shows simultaneous voltage and current on either of the two output terminals. A
toggle switch permits selection between the output terminals. The meter features bright red
LED readouts to permit easy monitoring from many feet or meters away.
supplies running in parallel. Repeat this process for the negative terminals using the same
gauges of wire, but black in colour. These units should now load share. You can conrm this
by watching the output ammeters. A slight difference is negligible, however, if this is not
the case, you can increase the output voltage of the unit that is reading low using the output
adjust potentiometer.

8
Troubleshooting
This unit provides LED indicators and a buzzer to help diagnose any problems. The unit should
sound the buzzer to alert you prior to shutting itself down. You should immediately check the
indicators to determine the cause of the shutdown.
OVERLOAD Indicates that the output current has exceeded the continuous rating of the unit.
LOW OUTPUT Indicates that the output voltage is below normal because:
The current demanded by the devices connected to the unit exceeds the
maximum output current rating, causing the output voltage to drop to maintain
the current at the maximum level
The input voltage is not high enough for unit to operate,
LOW INPUT Indicates that the input voltage is below normal because:
The input voltage is not in the correct range for proper operation of the unit.
OVERTEMP Indicates that the Battery Charger is running too hot because:
Too much power is being drawn, turn off or unplug some devices.
The Battery Charger is located in a poorly ventilated area.
If the load exceeds the continuous rating for too long a period, the temperature sensor inside
the unit will turn off the outputs. After the unit cools sufciently, it will automatically come
back on. If this happens frequently, remount the unit for increased airow so it cools better.

9
Remote Control Option
A remote control panel may be connected to the voltage converter using a 9-pin D-connector
that attaches to the side of the voltage converter. The remote control panel and D connector
are part of the remote control option. The remote control panel allows the unit to be operated
remotely as well as duplicating all the diagnostic indicators and audible alarm.
This connector is located on the side of the unit. Important: To prevent the possibility of High
Voltage Electrical Shock, do not power up the Voltage Converter unless all wiring from the unit
to the remote is securely connected. Do not remove the dust cover from the DB-9 connector if
the remote is not being used.
IMPORTANT: This remote is to be used only on
Voltage Converters manufactured by Analytic Systems.

10
Special Services & Options
Conformal Coating INCLUDED ON ALL UNITS UNLESS REQUESTED NOT TO as of April 1, 2014
Option “c” Ruggedization Package (EXTRA Conformal Coating and RTV Compound)
Option “v” Marine / Industrial Pkg (EXTRA Conformal dipping and RTV Compound)
Option “MS” Military Pkg
(incl. Wide Temp Components, Conformal Dipping and RTV Compound)
Option “w” Wide Temperature Operation (-40 to +55 C, incl)
Option “SM” High Voltage Protection on the DC Input Side
Option “d” Paralleling Diodes
Option “FI” Forklift Modications
Option “F” Open Frame - No chassis just heat sink bars (not for all products)
Special Input There is no charge for nominal output voltages (ie. 12.0, 24.0, 48.0), but this
must be noted at the time of order (Contact Factory for details)
Special Output
Water tight options IP66, IPS67, IPS68

11
Limited Warranty
1. The equipment manufactured by Analytic Systems Ware (1993) Ltd. (the “Warrantor”) is warranted to be free
from defects in workmanship and materials under normal use and service.
2. This warranty is in effect for:
a. 3 Years from date of purchase by the end user for standard products offered in our catalog.
b. 2 Years from date of manufacture for non-standard or OEM products
c. 1 Year from date of manufacture for encapsulated products.
3. Analytic Systems will determine eligibility for warranty from the date of purchase shown on the warranty card
when returned within 30 days, or
a. The date of shipment by Analytic Systems, or
b. The date of manufacture coded in the serial number, or
c. From a copy of the original purchase receipt showing the date of purchase by the user.
4. In case any part of the equipment proves to be defective, the Purchaser should do the following:
a. Prepare a written statement of the nature of the defect to the best of the Purchasers knowledge, and
include the date of purchase, the place of purchase, and the Purchasers name, address and telephone
number.
b. Call Analytic Systems at 800-668-3884 or 604-946-9981 and request a return material authorization
number (RMA).
c. Return the defective part or unit along with the statement at the Purchasers expense to the Warrantor;
Analytic Systems Ware (1993) Ltd., 8128 River Way, Delta, B.C., V4G 1K5, Canada.
5. If upon the Warrantor’s examination the defect proves to be the result of defective material or workmanship,
the equipment will be repaired or replaced at the Warrantor’s option without charge, and returned to the
Purchaser at the Warrantor’s expense by the most economical means. Requests for a different method of return
or special handling will incur additional charges and are the responsibility of the Purchaser.
6. Analytic Systems reserves the right to void the warranty if:
a. Labels, identication marks or serial numbers are removed or altered in any way.
b. Our invoice is unpaid.
c. The defect is the result of misuse, neglect, improper installation, environmental conditions, non-autho-
rized repair, alteration or accident.
7. No refund of the purchase price will be granted to the Purchaser, unless the Warrantor is unable to remedy the
defect after having a reasonable number of opportunities to do so.
8. Only the Warrantor shall perform warranty service. Any attempt to remedy the defect by anyone else shall
render this warranty void.
9. There shall be no warranty for defects or damages caused by faulty installation or hook-up, abuse or misuse of
the equipment including exposure to excessive heat, salt or fresh water spray, or water immersion except for
equipment specically stated to be waterproof.
10. No other express warranty is hereby given and there are no warranties that extend beyond those described
herein. This warranty is expressly in lieu of any other expressed or implied warranties, including any implied
warranty of merchantability, tness for the ordinary purposes for which such goods are used, or tness for a
particular purpose, or any other obligations on the part of the Warrantor or its employees and representatives.
11. There shall be no responsibility or liability whatsoever on the part of the Warrantor or its employees and rep-
resentatives for injury to any person or persons, or damage to property, or loss of income or prot, or any other
consequential or resulting damage which may be claimed to have been incurred through the use or sale of the
equipment, including any possible failure of malfunction of the equipment, or part thereof.
12. The Warrantor assumes no liability for incidental or consequential damages of any kind

8128 River Way, Delta B.C. V4G 1K5 Canada T. 604.946.9981 F. 604.946.9983 TF. 800.668.3884 (US/CANADA)
www.analyticsystems.com
An ISO9001 and AS9100 Registered Company Battery Chargers •Inverters •Power Supplies •Voltage Converters