Magnum Energy ME-RTR Router - Manual (Page 25)

Page 17
©
2014 Magnum Energy, Inc.
Setup
CTRL: 04 RTR Aux Relay
The Aux Relay can be programmed to open or close based on the inverter’s battery voltage, the
battery’s state of charge (SOC), or used to indicate an inverter fault has occurred.
Note: Options include: Force Open (default setting), Force Closed, Auto VDC, Auto VDC (BTS
Comp), Auto Fault, and Auto SOC.
Info: When the relay is open (de-energized), the Aux Relay’s LED (yellow) is off. When
the relay closes (energized), the Aux Relay’s LED is on.
• Force Open – Manually forces the Aux Relay contacts to stay open. This setting manually
controls the device connected to the Aux Relay, or can be used to test the Aux Relay operation.
• Force Closed – Manually forces the Aux Relay contacts to stay closed. This setting manually
controls the device connected to the Aux Relay, or can be used to test the Aux Relay operation.
This setting also allows the Aux Relay to be forced closed and to stay closed until the open
setting [under the Auto VDC, Auto VDC (BTS Comp) or Auto SOC setting] is reached.
Normally, the Aux Relay is open until the closed setting is reached. However, if Forced Closed
is selected fi rst, and then:
– Auto VDC or Auto VDC (BTS Comp) is selected—if the battery voltage is between the open
and close settings after Auto VDC or Auto VDC (BTS Comp) is selected, the relay will stay
closed until the VDC open setting (and any delay time) is reached.
– Auto SOC is selected—if the SOC value is between the open and close settings after Auto
SOC is selected, the relay will stay closed until the SOC open setting is reached.
Info: When the Force Open or Force Closed options are selected, the Aux Relay will
open or close without any time delay.
• Auto VDC – Automatically activates the Aux Relay based on adjustable DC voltage settings
under the SETUP: 01F RTR Aux Relay menu. The relay uses the Close Volts and Open Volts
settings to close and open based on a low or high DC voltage, and allows the relay to be
confi gured to activate either as an “active high” or “active low” type relay. This relay also uses
the Close Delay and Open Delay settings to automatically control the Aux Relay’s open and
close delay times. (Refer to the SETUP: 01F RTR Aux Relay menu on pages 24-25 for more
information on these settings.)
• Auto VDC (BTS Comp) – Same as the Auto VDC setting. However, it compensates the voltage
settings based on the battery temperature reading when the BTS (Battery Temp Sensor) is used.
Example: The Open Volts setting is 26.2, the Close Volts setting is 25.1, and the BTS temperature is
50°F (a voltage compensation of +0.9 volts*). In this scenario, the aux relay will open when the actual
battery voltage is 27.1 (26.2 + 0.9) and close when the actual battery voltage is 26.0V (25.1 + 0.9).
* - Refer to “BTS Temperature to Charge Voltage Change” chart in your inverter owner’s manual.
Info: When the Aux Relay automatically activates using the Auto VDC or AUTO VDC
(BTS Comp) setting, the DC voltage is based on the DC voltage reading from the
System Home screen.
• Auto Fault – This setting causes the Aux Relay to stay open during normal operation, but
closes when an inverter/charger fault is detected (see Section 5.3.4 “Fault Mode Messages”
for a list of inverter/charger faults).
Note: The Aux Relay re-opens when the fault is cleared.
• Auto SOC – Automatically activates the Aux Relay based on adjustable SOC settings under the
SETUP: 01G Aux Relay SOC menu. The relay uses the Close and Open SOC settings to close
and open based on the battery SOC, and allows the relay to be confi gured to activate either
as an active high or active low type relay. (Refer to the SETUP: 01G Aux Relay SOC menu on
page 25 for more information on these settings.)
Info: The Auto SOC feature requires the optional ME-BMK (battery monitor) to be
installed.