KEPCO RA 19-1U Operator Manual - Manual (Page 39)

RA 19-1U 020413
2-23
2.6 REMOTE ON-OFF (-1URX AND -1URY MODELS ONLY)
Power switch of HSF must be set to on. Use designated ±RC pins of applicable I/O connector
(see below) to set specified output on or off. See Figure 2-17 for typical configuration. Note that
when ±RC are used, only the normally-closed Alarm (open on failure) is available for use. Con-
tact Kepco if isolation between alarm and remote on-off is required.
• Output OFF requires no voltage, or short circuit, or 0 to 0.8V across ±RC pins of I/O con-
nector.
• Output ON requires 4.5 to 12.5V (or 12.5 to 24.5V through 1.5K Ohms) across ±RC pins
of I/O connector.
To reverse the polarity of the on-off voltage (where output ON requires no voltage, or short cir-
cuit, or 0 to 0.8V across ±RC pins of I/O connector), contact Kepco.
I/O connector pins designated for use for remote on-off are as follows:
I/O Connector +RC –RC
Slot 1 PS1, PS2 Pin 11 Pin 15
Slot 2 PS1, PS2 Pin 9 Pin 13
Slot 3 PS3, PS4 Pin 11 Pin 15
Slot 4 PS3, PS4 Pin 9 Pin 13
CAUTION: –RC is also the –V output of the HSF power supply.
For -1URY models, –RC may also be used for +IMON.
+RC is also the Alarm Common of the HSF power supply.
±RC pins are NOT isolated from DC output pins.
NOTE: ±RC pins of I/O connector are isolated from AC input pins.
FIGURE 2-17. USING REMOTE ON-OFF (TYPICAL), -1URX AND -1URY MODELS ONLY