Emergency Mains Off
Installation
ONEAC CDR45I Series Power Conditioner, Installation Guide, 913-521 Rev. A
27
A circular plastic connector (CPC) is provided on the back of the power
conditioner, located above the convenience receptacles, to allow for an external
connection to the EMO circuit. A series connected, normally closed string of
contacts or switches must be connected between J1-3 and J1-4 of the CPC. The
conditioner will not function unless a closed loop exists between these two
pins. The power conditioner is shipped with a shorting plug (P1) connected to
the panel to allow for field installation and verification. An additional plug with
4 loose pins is shipped with the conditioner. They are stored in the spares
compartment above the control transformer.
Pins P1-1 and P1-2 are not used in the shorting plug provided. A pair of
contacts, K1A is connected to J1-1 and J1-2 for future user specific circuits.
The contact pair is rated at 250 Vac, 1 A. The relay coil, K1, is energized when
power is available to the input circuit breaker undervoltage coil for normal
operation. The contact pair K1A is closed when relay K1 is energized.
Alarming the EMO circuit removes power from K1 at the same time as the
input circuit breaker undervoltage coil is de-energized. The contact pair K1A
will open. Restoring 24 Vac power to normal will close the contact pair K1A.
Note that K1A will be closed whenever the EMO 24V ac power loop is normal
even if the input circuit breaker has not been turned ON.
The following is a list of ONEAC and manufacturer part numbers for the CPC
plug, cable clamp and pins used for this circuit.:
Table 4
ONEAC and manufacturer part numbers
Part Description
Oneac Part #
Manufacturer
Mfr Part #
CPC Plug (P1)
435-260
AMP
206429-1
CPC Cable Clamp
435-262
AMP
206062-3
Pin (#18-#14 AWG) 421-270
AMP
66361-4
Summary of Contents for CDR45I Series
Page 6: ...Safety Information 6 ONEAC CDR45I Series Power Conditioner Installation Guide 913 521 Rev A...
Page 10: ...List of Figures 10 ONEAC CDR45I Series Power Conditioner Installation Guide 913 521 Rev...
Page 40: ...Physical Views 40 ONEAC CDR45I Series Power Conditioner Installation Guide 913 521 Rev A...