Instruction manual

3.5 DC Output Terminals
The PS2/3/5 has one set of output terminals labeled DC Output +/- which provides a constant output
of either 12VDC or 24VDC. See Section 5.1 for additional information on output voltage selection on
board-level units.
Caution - Observe the polarity of the output terminals with respect to the load or damage to the
load may occur.
3.6 Fault Reporting Terminals
The PS2/3/5 utilize either a low-current voltage fault output for connection to an AlarmSaf RBKS
module or an integral Form-C fault relay output (optionally available in the PS5 only). See Table 3.1
to determine the Fault Output style for a particular model number. Fault conditions indicated include:
y Low Output Voltagey High Output Voltage
y Low Battery Voltagey High Battery Voltage
y Blown Fuse (AC or Battery)y Low or missing AC
NOTE - The PS2/3/5 does NOT detect battery presence. If battery presence detection is required with
a PS2/3/5, the addition of a BP-001 module will add this feature. AlarmSaf also manufactures
supplies with integral battery presence detection.
3.6.1 Low-Current Voltage Fault Output (See also Appendix A)
The voltage fault output is for connection to an AlarmSaf RBKS module for remote or local fault
reporting. The following RBKS modules may be used with the voltage fault output:
y RBKS-124P NOT Fail Safe
y RBKS-124N Fail Safe
y RBKS-10 Fail Safe when using the Negative Trip Input only
Note - The RBKS-124P does not provide a fail safe indication - the relay will only indicate a fault
condition if a source of power (Battery / AC power) is present. If a total loss of battery and AC power
occurs, the relay will not indicate a fault.
Note - The voltage fault output will only supply a very low current. It will not
power a relay coil -
even a low-current relay coil. This output must be used with a sensitive trip relay.
3.6.2 Form-C Relay Fault Output
The integral relay output provides a fail-safe, Form-C relay output rated at 1A at 24VDC.
Terminals are labeled in the unpowered (fault) state.
3.7 Fusing
The PS2/3/5 contains two replaceable fuses - The AC Fuse and the Battery Fuse. When replacing
these fuses, only the equivalent type and rating are to be used. Both fuses are rated at 10A
(AGC-10). See Figure 3.2 for locations.
PS2/3/5 Installation Instructions
8/23/2007, 2:51:41 PM
52-133 Rev B.01
Page 9 of 16
AlarmSaf 65A Industrial Way, Wilmington, MA 01887 978 658 6717 www.alarmsaf.com