Index
IX–2 975-0131-01-01
serial number WA–4
knockout locations 2–16
LEDs, See status LEDs
lightning protection
2–8
long-distance grounding 2–8
maintenance, general 6–3
maximum power point tracking, See MPPT
mechanical specifications
A–5
messages, See front panel display
model configurations
1–8
model number WA–4
mounting bracket
installing
2–17
on backing support 2–21
on poles or rails 2–20
mounting the inverter
clearance requirements
2–18
multiple inverters 2–23
on wallboard, siding or concrete 2–21
overview 2–16
preparation 2–16
single inverter 2–22
surfaces for 2–19
using poles or rails 2–20
MPPT
operational window
2–6
technology 1–3
multiple inverters
AC and DC wiring
3–10
communication between 3–12
communications wiring 3–16
configuration 2–2
messages in normal operation 5–5
messages in offline mode 5–6
operation
factors affecting performance
6–2
inverter startup 4–4
messages at startup 5–3
reassembling the unit 4–3
startup procedure 4–2
parallel configuration 1–3, 3–10
AC wiring 3–10
communication between inverters 3–12
communications wiring 3–16
DC wiring 3–10
photovoltaic (PV) power 1–2
power derating A–5
preparing for installation 2–13
proof of purchase WA–4
purchase date WA–4
PV arrays
angle of the sun
6–2
checking DC voltage 4–2
effect of shade on performance 6–2
factory ratings 6–2
grounding requirements 2–8
installation recommendations 2–5
matching size to inverter input 2–7
requirements 2–5
temperature affecting performance 6–2
types of modules 2–6
voltage requirements 2–6
RJ45 connector requirements 3–14
RJ45 ports
communication between inverters
3–13
location in wiring box 3–3
RS-232 port 3–13, 5–7, 5–9
safety instructions vii
serial number WA–4
single inverter configuration 2–2
specifications
electrical
A–2
mechanical A–5
standard features and options 1–3
standard test condition 6–2
startup procedure
check PV array DC voltage
4–2
check utility AC voltage 4–2
monitor front panel display 5–2
overview 4–2
replace wiring box cover 4–3
start the inverter 4–4
status LEDs
description
5–9
