2
Charger Overview
The A75R is simple and easy to use. It has an easy to read digital display for Output Voltage, and an analog
meter for the Output Current. All settings on the A75R are done via the front panel DIP switches, so there is no
need to navigate through confusing set up menus. A75R also includes Charger Failure and Low Current Alarms.
These alarms give the customer LED indication as well as sharing a single set of contacts for remote
annunciation.
The image below shows all points of customer interaction with the A75R charger.
1.
Input/Output Power
Connections - Section 1.2
1A.
AC Input Neutral
1B.
AC Input Phase
1C.
Ground
1D.
Negative DC Output
1E.
Positive DC Output
2.
AC Fuse
3.
DC Breaker
4.
Output DC Current
5.
Output DC Volts
6.
Customer Connections (Signal)
6A.
Remote Shutdown Input (12-24Vdc Bipolar) - Section 1.3
6B.
Alarm Relay Contacts - Section 1.3
7.
Status & Alarm Indicators - Section 3
8.
Output Adjustments - Section 2.3
9.
Charger Settings - Section 2.2
10.
External Temperature Probe Connection – Section 2.2
Figure 1 - A75R Railway Battery Charger
Summary of Contents for A75R
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