Vertiv ALPHA 1800 User Manual

ALPHA 1800
Battery charger / DC Power Supply
©2017 Vertiv Co. All rights reserved | ALPHA 1800 | 60008595 | User Manual | v06 | 05.17
Supervision Quartz
(option, HE10 20 pts)
Installation and User Guide
ALPHA units have been designed to charge any current type of batteries. Thanks to their simple interface, they
provide all necessary settings as well as simple operation monitoring. Incorporating protections and basic
functions, they are easy and quick to set up. They guarantee a reliable operation and good care of the batteries
that will extend their life even when used in harsh conditions.
It is also possible to set ALPHA unit as a power supply. Optional supervision printed circuit boards convert
ALPHA units in smart systems dedicated to your applications. They feature complex functionalities that are
nevertheless easy to use thanks to a user friendly man-machine interface.
1 INSTALLATION AND CONNECTION
2 COMMISSIONNING
Battery charger mode
ALPHA is delivered in battery charger mode as a factory setting. Output voltage is predefined for VLRA
batteries at 2.27 V per cell, or 13.6 V, 27.2 V, 54.5 V or 136.2 Vdc according to the model. When the desired
output voltage is different, i.e. when using a nickel-cadmium battery with 1.42 V per cell as a recommended float
voltage, it is possible to adjust output voltage by roughly ±5% using U potentiometer.
=
1 2 3 4 5 6 7 8 9 10 11
DjS
FB
FU
U
IB
+/- OUT
+/- BAT
Stop Boost
U
IB
Synoptic
Led Mains on
Output voltage
U setting
Battery current
IB setting
Mode selector
(switch 1234)
Bottom view
Mains (male IEC type)
Fault relay (0.8 mm² mini)
1-2 NO
2-3 NC (closed at fault)
Supervision Quartz (option, HE10 20 pts)
Bat: Battery (max 16 mm²)
Out: Load (max 16 mm²)
External controls (0.8 mm² mini)
4 +Vcc
5 0V
6 U setting (switch 2: set to external setting)
7 IB setting (switch 3: set to external setting)
8-9 On / Off static stop (open = stop)
10-11 boost
: Earth ()
261
220
413
123
72
385

Respect product
orientation

Vertiv ALPHA 1800 Specifications

General

Brand	Vertiv
Model	ALPHA 1800
Category	Power Supply
Language	English

Summary

1 INSTALLATION AND CONNECTION

2 COMMISSIONNING

Battery charger mode

Factory setting for ALPHA units, with predefined output voltage for VLRA batteries.

3 ADVANCED FUNCTIONS

Battery current setting

Adjust charging current using IB potentiometer, recommended at 10% of battery capacity.

Boost function

Temporarily raises charging voltage by 3.8% for faster charging, activated by strapping terminals.

Static stop command

Allows external control to stop the unit by using a switch or dry contact.

Output voltage U setting using external potentiometer

Enables analogue setting of output voltage (0-125%) via an external potentiometer.

Current IB setting using external potentiometer

Enables analogue setting of battery current (0-100%) via an external potentiometer.

Protections

Internal devices protect unit and load against reverse polarity, overload, overvoltage, and thermal issues.

4 OPTIONS

Supervision kit Quartz

Includes supervision PCB and display for advanced automatic battery charger management.

Potentiometer kit for analogue control

Kit with a ten-turn potentiometer for fine analogue setting of output voltage or current.

5 TROUBLE SHOOTING

No output voltage and mains present LED off

Troubleshooting steps when the unit has no output voltage and the mains LED is off.

No output voltage and mains present LED on

Troubleshooting steps when the unit has no output voltage but the mains LED is on.

Output voltage is not the one desired

Steps to resolve issues with incorrect output voltage settings and adjustments.

6 SPECIFICATIONS

Programming of the output voltage mode

Details on setting output voltage modes for charger, power supply, and external settings.