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5.6 MAKING THE ALARM RELAY CONNECTIONS
The 1001RPEM-RAC and 1001RPEM-RVDC rear power entry
cards (figure 3, below) feature a 3-position, screw-type terminal plug for
the alarm connections. Both normally-open (NO) and normally-closed
(NC) relay contacts are provided. Choose the appropriate set of con-
tacts for the intended application. The NO contacts are open for nor-
mal operating conditions and close when a fault condition occurs (loss
of module input power, overheating or module failure). The NC con-
tacts are closed under normal operating conditions.
“NO” Contacts:
The “NO” (normally-open) contacts are open for normal
operating conditions and close when a fault condition
occurs (loss of input power, overheating or module failure).
“NC” Contacts:
The “NC” (normally-closed) contacts are closed for normal
operating conditions.
The alarm terminal plug accepts 12-26 AWG size wire, solid or
stranded. For ease of hookup, the terminal plug can be removed from
the rear panel alarm port by loosening the two securing screws. After
connections to the plug have been made, insert the plug back into the
alarm port on the rear panel and tighten the securing screws.
Spare terminal plugs may be obtained directly from Patton
Electronics. See Appendix for part numbers, contact ratings and gen-
eral alarm port specifications.
5.7 CONNECTING A 1001RPEM-RAC ENTRY CARD TO THE AC
VOLTAGE SOURCE (90-264 VAC, 50-60 Hz)
For the AC main connection, the 1001RPEM-RAC is equipped with
a shrouded male IEC-320 compatible power entry connector. This con-
nector contains an integral fuse and accepts a domestic US power
cord or any of several international AC power cords. Only three-wire
power cords containing an earth ground lead may be used. After the
power cord is properly connected and power is applied, the green
"12V" LED on the 1001RPSM-RUI front panel will be illuminated and
the fan will operate. Voltage selection is automatic. There is no on/off
switch.
5.8 CONNECTING A 1001RPEM-RVDC ENTRY CARD TO THE 48
VDC SOURCE (42-60 VDC)
For the 48 VDC connection, the 1001RPEM-RVDC is equipped
with a three-position, clamp-style terminal block. Only the two outer-
most terminals are used. In addition to the terminal block, an external
lug is provided for the connection of earth ground. Follow the steps
below to make the DC power connections:
CAUTION: Use copper conductors between 12 - 18 AWG only
1.
Connect the earth ground of the DC source to the exterior lug on
the entry card using the hardware provided. The earthing conduc-
tor must be equivalent to or larger than the conductors used for
the input supply connections.
2.
Strip back the insulation on each of the wires approximately ¼
inch.
3.
Use a small flat-blade screwdriver to open the cage clamp of the
terminal block. Insert the stripped end of the positive lead into the
"+DC input" of the terminal block and remove the screwdriver.
Repeat the procedure for the negative lead, using the "-DC input"
of the terminal block. Make sure that all strands of wire are cap-
tured and that there is no exposed wire.
WARNING!
1001RPEM-RAC power entry cards are to be
used
ONLY with three wire grounded outlets.
Figure 3. Models 1001RPEM-RAC & 1001RPEM-RVDC rear panel
Rear Panel
1001RPEM-RAC
Rear Panel
1001RPEM-RVDC
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