Filter
Top Products
83
-
5
15
-
0
00
Rev.
B
46
CAUTION
COM (J1
-
12), VPGM_RTN (J1
-
22) terminals are connected AND IPGM_RTN
(J1
-
23) terminal of J1 is referenced internally to the
-
Vout potential (
-
V). Do
not connect these terminals to any potential other than
-
Vout (
-
V), as it may
da
m
age the po
wer supply.
CHAPTER 6 REMOTE ANALOG PROGRAMMING
6.1 INTRODUCTION
The rear panel connector J1 allows the user to program the power supply Output Voltag
e and Cu
r
rent
with an analog device. J1 also provides monitoring signals for Output Voltage and Output Current.
The pr
o
gramming range and monitoring signals range can be selected between 0
-
5V or 0
-
10V using
the setup switch SW1. When the power supply is
in Remote Analog programming, the serial comm
u-
nication port is a
c
tive and can be used to read the power supply parameters.
6.2 LOCAL/REMOTE AN
ALOG
CONTROL
C
ontact 8 of J1 (Fig.4
-
2, Item 5) accepts TTL signal or Open
-
Short contact (referenced to J1
-
12) to
s
e
lect between Local or Remote Analog programming of the Output Voltage and Current.
In Local mode, the Output Voltage and Output Current can be programmed via the front panel
VOLTAGE and CURRENT encoders or via the RS232/RS485 port. In Remote Analo
g mode, the Ou
t-
put Voltage and current can be programmed by analog voltage or by programming resistors via J1
contacts 9 and 10 (refer to Sections 6.4 and 6.5). Refer to Table 6
-
1 for Local/Remote Analog control
(J1
-
8) fun
c
tion and Setup switch SW1
-
1, 2 se
ttings.
SW1
-
1, 2 se
t
ting
J1
-
8 function
Output Voltage/
Current setting
Down (default)
No effect
Local
“0” or Short
Remote
Analog
Up
“1” or Open
Local
Table 6
-
1: Local/Remote Analog control function
6.3 LOCAL/REMOTE ANALOG INDICATION
Contact 21
of J1 (Fig. 4
-
2, Item 5) is an open collector output that indicates if the power supply is in
Local mode or in Remote Analog mode. To use this output, connect a pull
-
up resistor to a voltage
source of 30Vdc maximum. Choose the pull
-
up resistor so that the
sink current will be less than 5mA
when the output is in a low state. Refer to table 6
-
2 for J1
-
21 function.
J1
-
8
SW1
-
1
SW1
-
2
J1
-
21 signal
Down
Down
Open
Down
Up
0
0.6V
Up
Down
0
0.6V
TTL “0” or short
Up
Up
0
0.6V
TTL “1” or open
Down or Up
Down
or Up
Open
Table 6
-
2: Local/Remote Analog indication