AMETEK DLM 600W Series - Manual (Page 62)

DLM 600W Series
M362161-01 K 4-4
4.3.2 REMOTE ANALOG INTERFACE Functions
The REMOTE ANALOG INTERFACE provides control signals for programming output
voltage, current, and OVP, monitoring the output voltage and current, and controlling
the operational state of the power supply. The following paragraphs describe the
functions of the various signals. Pin numbers correspond to the REMOTE ANALOG
INTERFACE connector pinout; also refer to Table 4–2.
Digital Control Input Signals
EXTERNAL–OFF: Pin-14, disables the output with a 2–30 VDC logic–high signal level.
Signal is referenced to Pin-2 and opto–isolated from the other analog interface signals
and the output of the unit.
EXTERNAL–OFF RETURN: Pin-2, signal return for EXTERNAL–OFF; opto–isolated
from the output of the unit.
LOCAL–LOCKOUT: Pin-24, disables front–panel control with a 0–0.8 VDC logic–low
signal level. Internal 100 k
 pullup provided to 5 VDC. Signal is referenced to Pin-6,
and is not isolated from the negative (return) output of the unit.
ANALOG–CONTROL: Pin-1, enables remote analog programming with a 0–0.8 VDC
logic–low signal level. When ANALOG–CONTROL is asserted, the power supply will
power–up with the analog interface in control of the output voltage, current, and OVP.
Internal 100 k
 pullup provided to 5 VDC. Signal is referenced to Pin-6, and is not
isolated from the negative (return) output of the unit.
Digital Status Output Signals
VOLTAGE–MODE: Pin-5, nominal 5 VDC logic level indicates operation in constant–
voltage mode. Source resistance is 750
. Signal is referenced to Pin-6, and is not
isolated from the negative (return) output of the unit.
REMOTE–CONTROL: Pin-4, nominal 5 VDC logic level indicates operation with
remote programming of output voltage, current, and OVP. Source resistance is 750
.
Signal is referenced to Pin-6, and is not isolated from the negative (return) output of the
unit.
OVP: Pin-25, nominal 5 VDC logic level indicates that the output has been disabled
because of overvoltage protection. Source resistance is 750
. Signal is referenced to
Pin-6, and is not isolated from the negative (return) output of the unit.
FAULT: Pin-18, nominal 5 VDC logic level indicates that the output has been disabled
because of overtemperature or summary fault. Source resistance is 750
. Signal is
referenced to Pin-6, and is not isolated from the negative (return) output of the unit.