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EMR
3
- Truck Installations
EMR4 Terminal & Fueling Depot Installation Power Conditioning Requirements
Power Conditioning Requirements
Two separate electrical components are installed in EMR4 terminal - fueling depot applications - an uninterruptable
power supply (UPS) (recommended) and a +24 Vdc power supply (required). Veeder-Root recommendations for
this equipment are discussed below.
1. UPS (Uninterrupted Power Supply) - Optional
Ve
eder-Root recommends the Tripp Lite UPS model BC PERS450 (or equivalent) for up to 15 minut
es of
power backup t
o the +24 Vdc power supply. For pricing or additional information, you can phone Tripp Lite
customer support or visit their website at www.tripplite.com/support/bcpers450.
2. Power supply - UL certified, 120 watt minimum, AC to DC - Two Vendors Recommended: Digi-Key or TDK-
Lambda
Digi-Key Model 285-2346-ND 24 Vdc, 6.5 ampere power supply. (See Figure 17 for connection wiring dia-
gram) To order, visit their website at www.digikey.com
.
TDK-Lambd
a 24 volt power supply - Model No. HWS150A-24/A. To order, visit their website at www.us.tdk-
lambda.com/lp/products/hws-series.htm.
The power supply must be rated for at least 120 watts or improper operation of the EMR4
system will occur.
Power supplies are open-type devices and must be mounted in an enclosure suitable for the
application.
Figure 17. Digi-Key Power Supply Wiring Diagram
WIRE SIZE AND/OR DISTANCE LIMITATIONS
POUT-1, POUT-2, SP1, and SP2
• Wire size 16 - 24 AWG,
•
5V out length 250 ft. (76.2 m)
• 12V out length 500 ft. (152.4 m)
• 24V out length 1000 ft. (304.8 m)
+s +v
-V
-s
LN
BLK
WHT
85 - 265 Vac
Input Power
BLK
GRN
BLU
BRN
GRN/YEL
DRAIN
To IB Chassis
Ground Clamp
WHT
V+
Ground
Terminal strip on rear of
Digi-Key power supply
To IB
Input
Power
Sensing Jumpers
Must be installed
Power Supply
Case Dimensions:
4.21 x 7.7 x 1.75 inches
(107 x 195 x 45 mm)
North
America
Wire Color Codes
Europe
Line
Neutral
Ground
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