Analytic Systems VTC610 Series User manual

INSTALLATION &
OPERATION MANUAL
VTC610 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

Revised - May 30, 2016
Copyright (2005-2016) Analytic Systems Ware (1993) Ltd.

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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, unplug this voltage converter from the outlet before at-
tempting 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. O/P CONNECTION PRECAUTIONS
Connect and disconnect DC output connections only after setting the I/P power switch to
the off position.
Analytic Systems, does not recommend the use of the VTC610 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), autotransfusion
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 overvoltage
crowbar circuit protects devices connected to the converter. The VTC610 Series Voltage
Converter supplies either 12, 24, 32 or 48 VDC from a 110, 250, or 300 VDC power source.
Other input voltages up to 300 volts or output voltages up to 48 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 (ii) 110 250 300
Actual 100 - 140 230 - 280 280 - 360
Input Amps (max) 8.0 3.5 2.9
Input Fuse (slow blow) MDA-10 MDA-4 MDA-4
Output Voltages
Nominal (oo) 12 24 32 48
Actual 13.6 ± 0.05V 27.2 ± 0.05V 36.3 ± 0.05V 54.4 ± 0.05V
Output Adjust ± 1.0 Volts
Output Crowbar 16.0 ± 0.5 V 32.0 ± 1.0 V 42.7 ± 1.3 V 63.9 ± 2.0 V
Output Amps (cont) 40 20 15 10
Output Amps (max) 45 25 18 12.5

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General
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°C to +40°C @ maximum output
Isolation Input-Output & Input-Case 1500 Vdc
Output-Case 500 VDC (1500Vdc @ 48 V Out)
Length 14.5 in / 36.8 cm
Width 10.2 in / 25.9 cm
Height 3.0 in / 13.0 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]

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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) AWG12 wire. 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 measure the
Red - Positive Black- Negative
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 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.

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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
High quality digital meters can be added to the charger (factory installed only). Both outputs
can be monitored for current and voltage.

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.
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, thereby 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 voltage converter 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.

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Dry Contact Relay
Remote Control Option
To use your dry contact output fail relay you must connect a 9-pin D connector to the unit. You
must use pins one and six as is indicated on page 6 in the remote connector diagram.
The relay is factory preset to fail in the closed position when the low output LED and buzzer
come on. If you wish to have the relay fail in the open position when the low output LED and
buzzer come on, you must take the cover off the unit and move the jumper to the other position
on J22. J22 is located next to the relay.
To change the position of the jumper, rst turn the unit off and disconnect the unit from both
the power and load(s). Next, turn the unit on for 30 seconds to discharge the capacitors, then
turn it off again. Remove the eight screws holding on the cover. Turn the unit upside down,
remove the cover and locate J22. It will be next to the relay as is shown in the above diagram.
Simply move the jumper to the desired position as is shown in the above diagram. Replace the
cover and re-install the eight screws. Reconnect the unit to the power and load(s).
IMPORTANT: This remote is to be used only on
Voltage Converters manufactured by Analytic Systems.
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.

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