Emerson FD113 User Manual

4
208/240V - 3 Phase - 50/60 Hz
GROUND FOR
100/120 VAC
ONLY
208/240V - 3 Phase - 50/60 Hz
Typical 4-Wire Wiring – 208/240 Oil Pressure Safety Control Power Common to Compressor
* Optional Current Sensing RelayinSerieswithN/T2line
 forcompressorswithinternallinebreakmotorprotectors.
 (Preventsoilpressuresafetycontrolfromtrippingwheninternal
 line-breakmotorprotectortrips.)
FIGURE 8
Typical New Copeland 3-Wire Oil Pressure Safety Control Wiring
ThiscircuiteliminatesnuisancetripsoftheOPSCfrom“sneak”voltagesonthe“T”sideofthecontactorfromauxiliary
devicesconnectedfromthe“T”sideto“L”orneutralofthecontactor,orminorvoltage-leakagepathsfromthecompressors
connections/windingtoground.
* Optional Current Sensing RelayinSerieswithN/L1line
 forcompressorswithinternallinebreakmotorprotectors.
 (Preventsoilpressuresafetycontrolfromtrippingwheninternal
 line-breakmotorprotectortrips.)
FIGURE 6
Typical 3-Wire Separate Power Source
NOTE:ContactorCoil,AlarmandNormalLightmustbesamevoltageasthecontrolcircuitvoltage.
* Optional Current Sensing RelayinSerieswithNline
 forcompressorswithinternallinebreakmotorprotectors.
 (Preventsoilpressuresafetycontrolfromtrippingwheninternal
 line-breakmotorprotectortrips.)
FIGURE 7
3 Phase - 50/60 Hz
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Emerson FD113 Specifications

General

Brand	Emerson
Model	FD113
Category	Controller
Language	English