Clearing Faults In A Master/Slave System - Advanced Energy Pinnacle User Manual

Pinnacle™ 20 kW
• If you have a host computer connected to a serial port on your master unit, you
can monitor the output (power, current, or voltage) of your system and the output
of each individual unit.

CLEARING FAULTS IN A MASTER/SLAVE SYSTEM

If a slave unit experiences a self-clearing fault, both the master and slave units display
an error code and the master unit shuts off output from all attached power supplies.
When the fault condition clears, the master and slave units reset. You may then turn
on output.
If a slave unit experiences an explicit clear fault, both the master and slave units
display an error code and the master unit shuts off output from all attached power
supplies. When the fault condition clears, you must acknowledge the condition at the
master unit before turning on output. (For example, you must press the OFF button to
acknowledge the condition and then the ON button to turn on output.) For more
information about error codes, please refer to the "Troubleshooting" chapter.
UNDERSTANDING MASTER/SLAVE INPUT ON/OFF
COMBINATIONS
Unique logic in the Pinnacle power supply lets you power on and off master and slave
units independently of one another. Table 5-4 on page 5-17 lists valid input on and off
sequences. During valid on and off sequences, the master unit "re-scales" the total
output; that is, its I/O signals adjust to accommodate the most recent change in output
capability of the combined units.
Note: You cannot power up a Pinnacle master/slave system if output is on.
Table 5-4. Input Sequences for Master and Slave Units
Acceptable Condition
Sequence of Master
for ... Unit AC
Powering up the Switching
master unit as a AC input
stand-alone power ON
power supply
5702156-E
Condition
of Slave
Unit AC
Input Input
AC input
power is OFF
Installation
Condition Response (Type of
of Output
Off by No fault; master unit can
default output up to full power as
(Master AC a stand-alone unit, or the
input power master is ready to
is OFF) recognize any slave unit
Fault)
5-17