Tektronix PS280, PS283 - page 27

Reference
PS280 & PS283 User Manual 17
Figure 8 shows the configuration for three ground-referenced
positive power supplies.
Load 3
0 to 30V
0 to 2A (PS280)
0 to 1A (PS283)
Load 2
0 to 30V
0 to 2A (PS280)
0 to 1A (PS283)
Load 1
5V
0 to 3A
5V FIXED 3A
GND GND
SLAVE MASTER
Figure 8: Three Ground-Referenced Positive Power Supplies
Stacked. In the independently stacked mode, the variable power
supplies are connected and provide from 0 to 60V at 0 to 2 A (0 to
1A for the PS283).
Figure 9 on page 18 shows the PS280 or PS283 connected in a
stacked manner to produce a variable output of 0 to +60V
ground-referenced. The FIXED power supply produces –5V,
ground-referenced. In this configuration, the red output terminal of
the master variable power supply is the negative reference terminal
because it is directly connected to the ground terminal.