Overview DC Asterion Series
3-50 M330460-01 Rev A
The transfer function for the output power will be as follows:
Pout = (I4-20mA – 4) (100% rated output power) / 16, with I4-20mA in mA
Which sets 0W output power at 4mA and 100% rated power voltage at 20mA.
4-20mA
Source
33
18
PPRG_VSOUR
Figure 3-106. Remote Power Programming Using 4-20mA Source
3.7 Remote Overvoltage Programming
A remote DC voltage source can be connected externally between Pins 5
(OVPRG_VSOUR) and Pin 18 (RTN_PRG) to set the output overvoltage trip level. A
0-10 VDC signal equals 0-110% of rated output voltage. See Figure 3-107 for
connection requirements. This full-scale programming voltage source range can be
set to any value between 2V to 10VDC from front panel. Refer to Section 3.1.8.3.
0-10VDC
VOLTAGE
Source
5
18
OVPRG_VSOUR
Figure 3-107. Remote Overvoltage Programming Using DC Voltage Source
3.8 Remote Output On/Off Control
Remote output on/off control may be accomplished by contact closure, or through an
opto-isolated interface with external voltage sources, AC/DC or TTL/CMOS.