Blue Sky IPN Pro - Manual (Page 14)

Blue Sky Energy – IPN-ProRemote
13
¾ When Backlight is on, the IPN-ProRemote can draw up to 100mA from the charge controller. For proper operation of the shunt
current measurement circuits, total voltage difference between the IPN-ProRemote circuit common and the shunt must be kept to
less than
±1.0V when Backlight is on and maximum charge or discharge current is flowing in the system. If long network/power
cables are used, wire size may need to be increased to keep voltage difference between the “COM test point” and “SHUNT –” on
the back of the IPN-ProRemote to within
±1.0V or less at all times. Table 3 below shows wire size for a more conservative
recommended voltage drop limit of 0.50V maximum.
MAXIMUM NETWORK/POWER CABLE LENGTH FOR 0.50V DROP
WIRE GAUGE
AWG
MAXIMUM RECOMMENDED CABLE LENGTH
FEET / METERS
30 AWG 45 / 13.7
28 AWG 73 / 22.2
26 AWG 117 / 35.7
24 AWG 187 / 57.0
22 AWG 295 / 89.9
20 AWG 475 / 144.8
TABLE 3
MOUNTING
¾ CAUTION:. The unit is designed to mount into a standard US duplex wall mount box. It is not watertight and must be protected
from rain, snow and excessive moisture.
DETAILED DIMENSIONAL DRAWING
FIGURE 8
TROUBLESHOOTING GUIDE
SYMPTOM PROBABLE CAUSE ITEMS TO EXAMINE OR CORRECT
Display blank No power Charge controller not properly powered.
Network cable faulty, not plugged in or cable pins do not swap per Figure 7.
Display turns on, but
battery voltage shows
– –.–V rather than a
number IPN-ProRemote not communicating with
charge controller Network cable faulty.
Charge controller or IPN-ProRemote may have locked up, re-boot by momentarily
removing battery and PV power from charge controller.
One charge controller is not set to Master, or more than one charge controller is set
to Master.
Controller-to-controller network cable not wired A-to-A, B-to-B, or wires are open or
short.