Peavey X-Monitor - Manual (Page 69)

Power supply usage
Supply identification
The type of power supply can be identified by the model number shown on the back of the
chassis and panel label.
Power requirements
The X-Series power supplies have certain electrical requirements for proper operation. If possible
the power supply should be connected to a dedicated circuit. Should any other appliance on the
same circuit draw enough current to overload the circuit, the breaker or fuse will trip causing loss
of power to the console.
The power switch on the supply front panel is also a circuit breaker; there is no power fuse.
Should the supply ever shut down, or trip at start up, simply toggle the switch to the off posi-
tion and then push on again.
Ground linking
SAFETY CONSIDERATIONS —each new power supply is shipped with the AC third-wire ground con-
nected to the console chassis ground.The connection is made at the rear of the power supply
unit.This is necessary for safety reasons so that exposed metal parts are grounded. In the event
of a live conductor making contact with the console chassis or the power supply chassis then the
current will flow to ground without a safety hazard arising.
Uninterruptible grounding—in a fixed installation for example,make a connection directly to the
console chassis from the safety ground. Disconnect the ground link on the rear of the power
supply.This disconnects console ground from power supply AC third-wire ground which could
possibly create a hum-loop.
Twin-supply operation
When twin-supplies (or more) are in use for automatic back-up, then the ground links on both
supplies should be fitted.
In a situation where the safety ground to the console chassis has been connected and the ground
path via the power supply is causing a hum-loop, then disconnect the ground links on both
power supplies.
p. 69
Power supply 5