02001026
Rev 1 ECO 7062
Operation Manual:
LDD-100/150/250-XX-YY
Page 11 of 13
AC input power requirements for LDD-100/150/250 models are as follows:
Table 2
LDD-100/150/250 AC Input Power Requirements
MODEL INPUT
POWER
LDD-100-XX-YY
100-240 VAC, 50/60 Hz, 1.5A @115VAC
LDD-150-XX-YY
100-240 VAC, 50/60 Hz, 2.2A @115VAC
LDD-250-XX-YY
100-240 VAC, 50/60 Hz, 3.6A @220VAC
b.
INTERFACE SETTINGS
: Make sure
INTERLOCK
, Pin 3, is
connected to GND.
c.
APPLY INPUT AC POWER
Turn ON AC power. After a few seconds
the power supply fans should begin to run.
d.
PROGRAMMING OUTPUT CURRENT
Program LDD-100/150/250
power supply for desired output current. Once the unit has been
ENABLED
via Pin 1, a 0-10V signal applied to
Iprogram
, Pin 7, will
program the LDD-100/150/250 diode driver for 0 to maximum rated output
current.
e.
ENABLE OUTPUT
Apply +5V to +15V to
ENABLE
, Pin 1. The LDD-
100/150/250 will deliver output current as programmed.
5.
Monitoring LDD output and performance:
a.
Current Monitor
Power supply output current can be monitored via pin
6,
Iout Monitor
. A 0-10V signal will represent the output current from 0
to maximum rated output current.
b.
Voltage Monitor
Power supply output voltage can be monitored via pin
5,
Vout Monitor
. A 0-10V signal will represent the output voltage from 0-
maximum rated output voltage. If maximum compliance voltage is less
than 10V,
Vout Monitor
will read output voltage directly. If maximum
compliance voltage is greater than 10V, then
Vout Monitor
will be scaled
such that 0-10V = 0-Vout
max
.
IMPORTANT APPLICATION NOTE
When the power supply is enabled using the ENABLE signal, internal soft
start functions limit the rise time of the output current to approximately
20msec. Once the power supply is enabled, the rise/fall time of the
Ip) signal is approximately 600usec.
IMPORTANT SYSTEM NOTE ON AC INPUT POWER
LDD-100/150/250 units are fused on both input lines. It does not matter which
of the two AC inputs are designated Line or Neutral.
