Sorensen SFA Series, Operation Manual

Page: 38 / 58

Operation Sorensen SFA Series
Designator
Schematic
Symbol
Electrical
Chars.
Functional Description
19 V MON
Zout ~
100
Ω
Output voltage monitor. 0-10 VDC equals to 0-100% rated
voltage. Minimum load resistance 10k
Ω.
20 Not Used
21 Not Used
22
IP RES
*
~ 10.8V
compliance
1 milliamp current source for remote current programming
using resistance. 0-5k ohm resistor referenced to common
will program the output from 0-100%.
23 IP RTN
Zin ~ 10k
Ω
Current programming return. Used with J1-10, J1-16 or J1-22
and must be referenced to or within ±3V of the circuit
common.
24
COM
†
-
Circuit common. Same potential as the negative output
terminal.
25 IP RTN
Zin ~ 10k
Ω
Current programming return. Used with J1-10, J1-16 or J1-22
for remote current programming and must be referenced to or
within ±3V of the circuit common.
Table 3–1. ANALOG CONTROL Connector (J1), Designations and Functions
†
Control ground is isolated from power ground with the isolated analog control (option).
See Section 3.2.5.1
*
Signals not available with isolated analog control (option).
CAUTION!
If standard analog programming is used, note the programming return
(J1-6 & J1-24) is at the same potential as the negative output terminal of
the power supply. Observance of return connections should be made with
respect to input programming signal equipment. Improper connection may
result in ground loops and as a result internal power supply damage may
occur. (Output current then flows to chassis by means of external
connection to the J1 common (J1-6 & J1-24)).
3-10 M550292-01 Rev C