AFX SERIES® OPERATION MANUAL
SECTION 5: UNPACKING AND INSTALLATION
Entire Contents Copyright
2018 by Pacific Power Source, Inc. (PPS)
• All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual
Page 81 of 402
PIN
Signal
Description
Pin 12
SHIELD
Pin 13
DIO5
Data input/output bit.
Pin 14
DIO6
Data input/output bit.
Pin 15
DIO7
Data input/output bit.
Pin 16
DIO8
Data input/output bit.
Pin 17
REN
Remote enable.
Pin 18
GND
(wire twisted with DAV)
Pin 19
GND
(wire twisted with NRFD)
Pin 20
GND
(wire twisted with NDAC)
Pin 21
GND
(wire twisted with IFC)
Pin 22
GND
(wire twisted with SRQ)
Pin 23
GND
(wire twisted with ATN)
Pin 24
Logic ground
Table 5-6: GPIB Interface Connector Pin Assignments
5.17.7
Remote Inhibit or Enable Input - “L” Versions only
The remote inhibit may be used to provide output shut down if a rear panel rack door is
opened while the output is on. A contact closure between pins 7 and 9 (or an external 5Vdc
supply if MODE RELAY CONTROL is enabled) will allow control of the output relay from
either the front panel or a remote control interface. . “A” version models have the remote
inhibit function on the Aux I/O DB25 connector instead.
There are three modes of operation for this input:
1.
Disable mode: In his mode, the Remote Inhibit inputs are not active so this function
is turned off. No short between the RI pins is required to enable the output in this
mode.
2.
Remote Inhibit mode: The two pins have to be shorted for the output to be enabled
from the front panel or remote command. This is a necessary but not a sufficient
condition to enable the output. If the output is enabled and the remote inhibit
connection is open, a fault is generated. This mode is recommended for interlock
safety applications such safety cages and test fixture interlocks.
3.
Remote Enable mode: The output can be enabled by shorting these two pins,
regardless of the output enable command/button. It is a sufficient condition to
enable the output.
The mode can be selected from the SYST (SYSTEM) menu screen using the Interfaces,
Remote Inhibit selection as shown below.