Alpha XM 6015 Series Operations Instructions download pdf (Page 38)

6.9 Standard Control Logic

The Main Circuit Module assembly comes equipped with circuitry to monitor incoming

AC, charge the batteries and control the inverter. The XM Series power module uses a

dual-mode (float and equalize) temperature compensated battery charger to maintain

the batteries. A Remote Temperature Sensor (RTS) plugs directly into the side of the

module (the other end is attached to the side of the center battery in the battery compart-

ment) to provide optimum temperature measurements. Battery charging voltages are

factory set and do not need to be reset unless the module assembly has been repaired or

has been tampered with, or when batteries (other than gelled-electrolyte) are being used.

NOTE: Always verify the battery charger switch settings before placing the unit into

service. The power module can be manually sequenced through its two charging modes

by pressing the front panel "CHARGE MODE" switch. The XM's front panel "CHARGER

STATUS" display indicates the charging mode.

6.9.1 Selecting Battery Charge Voltages

Always refer to the battery manufacturer’s specifications before selecting float and

equalize charge settings. Failure to do so could damage the batteries.

Procedure:

1. Remove the Main Circuit Module assembly from the left side of the power module.

2. Select the required float charge voltage by positioning the FLOAT jumper at JP1

located midway along the lower side of the main board (see illustration on below).

The jumper is factory set at FLOAT 2 (40.5V) for a 36 Volt battery string and can be

repositioned if necessary. Each position (FLOAT 1, 2, 3) provides a different voltage

(refer to the chart on the next page for 24 VDC, 36 VDC and 48 VDC applications). If

the jumper is removed, the float voltage will default to its 39.0 volt calibration level.

3. Select the required equalize charge voltage by positioning the EQU jumper located at

JP1 on the main board. The EQUALIZE jumper

adds 0.9V per setting above the

value of the FLOAT setting. The jumper is factory set at EQU 1 (0.9V) and can be

repositioned if necessary. Each position (EQU 1, 2, 3) will provide a different equalize

voltage (refer to the chart on the next page for 24 VDC, 36 VDC and 48 VDC applica-

tions). If the jumper is removed, the equalize voltage will default to 0.0 volts (39.0 volt

float calibration level).

4. If the unit is equipped with APM or USM logic upgrades, set the "Auto-Equalize"

and "Auto-Test" switches (section 6.10) before reseating the Main Circuit Module

assembly.

Main Circuit Module Assembly

6. INSTALLATION

0 0 1 2 3 1 2 3

FLOAT

JP1

EQU

External Jack for RTS (Remote Temperature Sensor)

External Jack for Data

Logger

Edge Connector for APM logic

upgrade

(on back side of board)

Battery Charger Jumpers

(on component side of board)

Note: Float Positions "0 0" are

used for jumper storage only.

Optional APM and USM Plug-in Logic Upgrade

(on back side of main control board)

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 60 61

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Alpha XM 6015 Series Operations Instructions Page 38

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