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50 Amp Model
LED’s are for signal communication status and relay position
status.
Utility power present:
• NormalState
Relay Position Status LED (C)
- Green LED - Relay is closed; power available to
appliance/load
Signal Communication Status LED (D)
- Orange LED - No communication and appliances/
loads cannot be managed by Symphony II System
• ProblemState(seeTroubleshooting)
Relay Position Status LED (C)
- No LED - Power not available to managed
appliance/load; 5 minute delay has not expired,
verify correct wiring
- Red LED - 50 Amp relay contacts in incorrect state;
replace 50 Amp module
Signal Communication Status LED (D)
- No LED - No power to 50 Amp control board; verify
correct wiring
- Green LED - Broken LED; replace 50 Amp module
- Red LED - Fault in system; verify current
transformer connections, verify terminations on
orange and yellow communication wires
Generator power present:
• NormalState
Relay Position Status LED (C)
- Green LED - Relay is closed; power available to
appliance/load
- No LED - Relay open, no power, Symphony II is
managing load
Signal Communication Status LED (D)
- Green LED - Signal communication detected and
appliances/loads are being managed after
5 minute delay
• ProblemState(seeTroubleshooting)
Relay Position Status LED (C)
- No LED - Power not available to managed
appliance/load; 5 minute delay has not expired,
verify correct wiring
- Red LED - 50 Amp relay contacts in incorrect state;
replace 50 Amp module
Signal Communication Status LED (D)
- No LED - No power to 50 Amp control board; verify
correct wiring
- Orange LED - Signal communication not detected;
verify correct wiring
- Red LED - Fault in system; verify current
transformer connections, verify terminations on
orange and yellow communication wires
A
D
B
C
E
G
F
A - Priority Selector
B - 50 Amp Relay
C - Relay Status LED
D - Signal Communication LED
E - Neutral Connection
F - Load Connection
G - Power/Line Connection
NOT
FOR
REPRODUCTION