MDS Power VCH10 User manual

INSTALLATION &
OPERATION MANUAL
VCH10
Voltage Converter

IMPORTANT & SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS — this user guide contains important safety and operating
instructions for the battery charger.
VOLTAGE CONVERTER PRECAUTIONS
1. Do not expose the voltage converter to rain or snow unless it is a sealed model.
2. Use of an attachment not recommended or sold by the manufacturer may result in a risk
of re, electric shock, or injury to persons.
3. Do not disassemble the voltage converter; return it to the manufacturer or an authorized
service center when service or repair is required. Incorrect reassembly may result in a risk
of electric shock or re.
4. To reduce risk of electric shock, disconnect the voltage converter charger from the power
source before attempting any maintenance or cleaning.
5. Never place voltage converter directly above a battery; gases from battery will corrode
and damage battery charger.
6. Never allow battery acid to drip on the voltage converter.

Introduction
The VCH10 Step Down series of Voltage Converters supply up to 10 amps of output current
at 12, 24, 36 or 48 volts from any higher voltage between 20 and 80 volts DC for use in
automotive, heavy equipment, marine, industrial, rail or alternative energy environments.
All surface mount high frequency design offers higher reliability, higher efciency (more than
92%), more power (up to 544 watts at 48 VDC Out) and minimum size.
The unit has reverse input protection, output current limiting and output over-voltage
protection.

Specications
Input
Model VCH10-12 VCH10-24 VCH10-32 VCD10-36 VCH10-48
Input Volts VDC 20 - 80 30 - 80 40 - 80 45 - 80 60 - 80
Input Fuse CB61F15A - 15 Amp Surface Mount
Output
Nominal VDC 12 24 32 36 48
Actual 13.6 27.2 36.3 40.8 54.4
Output Amps 10 Amps
Dissipation 12 Watts
Efciency 91.9% 95.8% 96.8% 97.1% 97.8%
Electrical
Input Ripple & Noise < 100 mV Peak to Peak
Output Ripple & Noise < 50 mV Peak to Peak
Regulation (Line & Load) < +/- 0.5%
Mechanical
Dimensions 4.85 in / 12.3 cm Long x 4.13 in / 10.5 cm Wide (incl. mounting anges)
x 1.03 in / 2.6 cm High
Clearance 1.0 in / 2.5 cm all around
Weight 0.62 lb / 0.28
Material and Finish Marine grade aluminum with red anodize cover / black anodize chassis
Mounting Wall or shelf mount
Connections Pluggable Phoenix Combi-Com four position terminals
Environmental and Safety
Operating Temperature Range 25°C to +40°C @ maximum
Humidity 0 - 95% Relative Humidity (non-condensing) with standard conformal coating
Audible Noise None
Typical Service Life 10 years (87,600 hrs)
Isolation Any input or output to case (1500 VDC). Input to output - common negative
Warranty Three years parts and labor
* Specications subjects to change without notice.

Installation
MOUNTING
Mount the unit in a DRY location on any convenient surface using #8 screws.
POWER CONNECTION
The unit is equipped with a terminal strip for easy connection. Markings on the unit indicate
the proper wire connections.
IN + Input Positive
IN - Input Negative
BATT - Battery Negative
BATT + Battery Positive
Operation
Troubleshooting
The unit will operate whenever power is connected. The ON led will be illuminated whenever
power is connected to the charger. The OVERLOAD led will be illuminated whenever the
output current reaches the maximum.
If the ON led is not illuminated, check with a voltmeter for voltage between the IN + and IN -
connections. If there is power, check to make sure the connections are not reversed. Positive
should be on the outer terminal (terminal 1). If the connections are correct and the ON led still
is not illuminated, the input fuse may be blown. Remove the cover by unscrewing the four
cover screws under the base and lift it off. Be careful not to lose the two light pipes for the
leds. With the input and output disconnected, check the fuse with a good ammeter. If the fuse
is good, then the unit is damaged and must be returned for repair. If the fuse is blown, then
contact your dealer to have it replaced.

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-
authorized 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
representatives 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