Baldor MN735 manual Power Connection Descriptions

Table 3-3 Power Connection Descriptions

Terminal	Description	Function	Range
			230V 1–Phase	460V 3–Phase
RLY1	Relay Output	Normally open, programmable	Contact closes when the programmed
		contact for a relay output.	condition (see Section 4) is true.
			No voltage is present on this contact. 6
			conditions are available.
TH1A	Thermistor	Connection to motor thermistor	It is good practice to protect motors by using
			thermistors. A typical resistance (up to a
			reference temperature of 125_C) is 200Ω ,
			rising rapidly to 2000Ω	above this temperature.
TH1B	Thermistor	Connection to motor thermistor
			Connect devices in series between TH1A and
			TH1B. Jumper TH1A and TH1B if temperature
			sensors are not used.
	Reference	Supply protective earth (PE). This terminal must be connected to a protective (earth)
	Terminal	ground for permanent ground.
L1	Power Input	Single and three phase line	220/240VAC± 10%	380/460VAC± 10%
		connection	with respect to L2/N.	with respect to L2, L3.
L2/N	Power Input	Single phase neutral (or L2 three	220/240VAC± 10%	380/460VAC± 10%
L2		phase line connection)	with respect to L1.	with respect to L1, L3.
L3	Power Input	Three phase line connection	Not applicable	380/460VAC± 10%
				with respect to L1, L2.
DC-		No user connection
DC+	Dynamic Brake	Connection to external brake	Not applicable	Frame 2 (high volt
		resistor		only) & 3.
				See •Internal Dynamic
				Brake Switch" table
DBR	Dynamic Brake	Connection to external brake	Not applicable	Frame 2 (high volt
		resistor		only) & 3.
				See •Internal Dynamic
				Brake Switch" table
M1/U	Power Outputs	3-phase supply connection for	0 to 220/240VAC	0 to 380/460VAC
M2/V		motor	0 to 240Hz	0 to 240Hz
M3/W
	Reference	Supply protective earth (PE). This terminal must be connected to a protective (earth)
	Terminal	ground for permanent ground.

MN735 Receiving & Installation 3–7