66
83507013 Rev G
5.15.2.1
Advanced Parallel Configuration
1. SW1 position 2 - Down in the Master Supply and up in all Slave Supplies.
2. Connect a short between J1-8 and J1-12 in all Slave Supplies.
3. Connect J1-25 of the Master Supply to J1-10 of all Slave Supplies.
The following set-up connections are optional but are strongly recommended.
These settings and connections will shut down all the parallel power supplies
when a fault condition occurs in any one of them:
1. Switch SW1 position 5 should be in its down position for all power
supplies.
2. Connect J1-16 of the Master Supply to J1-
15 of the ‘First’ Slave Supply.
3. Connect J1-
16 of the ‘First’ Slave Supply to J1-15 of the ‘Second’ Slave
Supply (if any).
4. Connect J1-
16 of the ‘Second’ Slave Supply to J1-15 of the ‘Third’ Slave
Supply (if any).
5. Connect J1-
16 of the ‘Last’ Slave Supply to J1-15 of the Master Supply.
6. Connect J1-2 (or J1-3) common to all supplies.
7. Select Local or Remote sense - Ref. Figures 5-4 and 5-5.
5.15.2.2
Setting the Units as Master or Slave
a) Depress and hold the FINE button for 3 seconds. The Master/Slave
configuration will be displayed on the Current Display. Rotate the CURRENT
encoder to obtain the desired mode. Refer to Table 5-4 for the CURRENT
display and modes of operation.
CURRENT Display
Operating Mode
H1
Single supply (default)
H2
Master supply with 1 Slave supply
H3
Master supply with 2 Slave supplies
H4
Master supply with 3 Slave supplies
S
Slave supply
Table 5-4: Setting mode of operation
b) When the desired configuration is obtained, depress and release the FINE
button or wait approx. 5 seconds.
5.15.2.3
Master and Slave Units Default Operation
a) When a unit is programmed to Slave mode it enters the Remote
mode with Local Lockout. In this mode, the front panel controls
are disabled to prevent accidental setting change (refer to Sec.
7.2.7 for details).
b) The Slave units parameters will automatically set the following:
Output voltage to approximate. 102% of rated output voltage.
Programmed Current to zero.
UVL to zero volts
OVP to its maximum value
AST On
OUT On
Foldback protection Off
c) The Master and Slave modes are stored in the power supply
EEPROM when the AC power is turned off. The system will return
to the Master/Slave mode upon re-application of AC power.
