Watlow PPC-2000 - Manual (Page 92)

Chapter 2: Hardware Installation PPC-2000 User’s Guide
68 Watlow Anafaze Doc.# 30002-00 Rev 2.3
NOTE! On the PPC-2050, each consecutive pair of analog
outputs—1-2, 3-4, 5-6 and 7-8—shares an internal
power supply. In current mode the power supply + is
shared, and in voltage mode the common is shared. If
an external power supply is tied into the internal
power supply though the B pin, the signal to each
output may be distorted. It may be necessary to use a
separate external power supply for each analog
output within the pair. Each output on the PPC-2051
has a separate internal power supply so the same
external power supply may be used.
Figure 2.55 Analog Output Connections on a
PPC-2050 Configured for Current:
Outputs 1 and 2 Shown
Load
1A
1B
PPC-2050
I
Load
2A
2B
-
-
+
i
i
I
+
+ 15V
Sink
Source
Sink
Source