Magnum Energy ME-ARC Remote User Manual

Page 116

Page 109

Using a PT Controller: Operation/Monitoring

• Start

EQ (5sec) – This selection starts the Equalize charge cycle from any stage in the charge

cycle as long as the controller is actively charging. To enable the EQ charge cycle, press the

SELECT knob for 5 seconds at the “Start EQ (5sec)” display to start a 5-second countdown

timer. Once the countdown has fi nished, the Equalize charge cycle starts and the lower line on

the display shows “EQ STARTED”. After the Equalize charge cycle has started, it will automati-

cally stop after 4 hours; unless “Custom” is selected from the SETUP: 06A Battery Type menu.

In this case, the Equalize charge continues for the duration of the Set EQ Done Time setting

(default of 4.0 hours). The Equalize charge cycle can also be manually stopped by using the

CTRL: 04 PT Control menu to allow you to choose a different selection.

Info:

If the EQ charging time exceeds the Max Charge Time setting, “PT Max Charge

Time” scrolls across the LCD display.

WARNING: Do not perform an Equalization charge without reading and following all

safety precautions pertaining to charging/equalization per the battery manufacturer,

the inverter owner’s manual, and as noted in Section 5.3.2 in this manual.

CTRL: 04B PT Aux Relay Ctrl
This menu allows the Aux Relay in the PT controller to be programmed to automatically engage

or disengage based on battery voltage, or used to indicate a PT controller fault has occurred.

This menu also allows the Aux Relay to be manually engaged or disengaged. View the Aux Relay

status from the METER: 07A PT Status/Relay Status menu.

Default setting: DISENGAGE
Range: DISENGAGE, VDC, FAULT, ENGAGE

Info:

When the relay is engaged, the AUX LED on the PT controller display is on

(yellow). When the relay is no longer engaged (disengaged), the LED is off.

• DISENGAGE

– Manually forces the Aux Relay contacts to stay disengaged. When the Aux

Relay is disengaged, the COM to N.O. contact is open, and the COM to N.C. contact is closed.

This setting can be used to manually control the device connected to the Aux Relay, or can be

used to test the Aux Relay’s operation.

• ENGAGE

– Manually forces the Aux Relay contacts to stay engaged. When the Aux Relay is

engaged, the COM to N.O. contact is closed, and the COM to N.C. contact is open. This set-

ting can be used to manually control a device connected to the Aux Relay, or can be used to

test the Aux Relay’s operation. This setting also allows the Aux Relay to stay energized until

the 06F PT Aux Relay/Relay Disengage Volts setting is reached. Normally, under the VDC set-

ting, the Aux Relay is disengaged until the Relay Engage Volts setting is reached. However,

if ENGAGE is selected first, and then VDC—if the battery voltage is between the engage and

disengaged volt settings after VDC is selected—the relay will stay engaged until the Relay

Disengage Volts setting (and any delay time) is reached.

Info:

When the DISENGAGE and ENGAGE options are selected, the Aux Relay will

activate without any time delay.

• VDC –

Automatically activates the Aux Relay based on adjustable DC voltage settings from the

SETUP: 06F PT Aux Relay menu. The relay uses the Relay Engage Volts and Relay Disengage

Volts settings to activate based on a low or high DC voltage, and allows the relay to be

configured to activate either as an “active high” or “active low” type relay. This relay also uses

the Relay Engage Delay and Relay Disengage Delay settings to automatically control the Aux

Relays engage and disengage delay times (refer also to the SETUP: 06F PT Aux Relay menu

on page 106 for more information on these settings).

• FAULT –

This setting causes the Aux Relay to stay disengaged during normal operation, but

engages when a PT controller fault is detected (see Section 5.3.4 “Fault Mode Messages” for

a list of PT controller faults).
Note: The Aux Relay automatically disengages when the PT fault is cleared.