Baldor mn722 manual External Trip Input, Opto-Isolated Inputs

External Trip Input	To activate the External Trip input, the External Trip parameter in the programming
	Protection Block must be set to “ON”.
	Terminal J1-16 is available for connection to a normally closed thermostat or overload
	relay in all operating modes as shown in Figure 3-26. The thermostat or overload relay
	should be a dry contact type with no power available from the contact. If the motor
	thermostat or overload relay activates the control will automatically shut down and give
	an External Trip fault.
	Connect the External Trip Input wires to J1-16 and J1-17. Do not place these wires in the
	same conduit as the motor power leads.
	Figure 3-26 Motor Temperature Relay

T1	T2	T3
		Customer Provided
		Source Voltage
External or remote motor		*
overload protection may
be required by National		CR1
Electrical Code or equivalent
M	M	M
	T2 T3
See recommended terminal		G
	T1	Motor Thermostat Leads
tightening torques in Section 7.

Note: Add appropriately rated protective device for AC relay (snubber) or DC relay (diode).

J1

16External Trip

Do not run these wires in same conduit as motor leads or AC power wiring.

	* Motor	* Optional hardware. Must be ordered separately.
Opto-Isolated Inputs	The equivalent circuit for the nine Opto inputs is shown in Figure 3-27. The function of
	each input depends on the operating mode selected and are described previously in this
	section. This Figure also shows the connections using the internal opto input Supply.

Figure 3-27 Opto-Input Equivalent Circuit (Using Internal Supply)

Opto In #1

Opto In #2

Opto In #3

Opto In #4

Opto In #5

Opto In #6

Opto In #7

Opto In #8

Opto In #9

Opto In Common

+24VDC @ 200mA (supply terminal 39).

Jumper terminals 39 to 40 (Factory Installed)

J1
8
9
10
11
12
13
14
15
16
17
39	6.8K	6.8K	6.8K	6.8K	6.8K	6.8K	6.8K	6.8K	6.8K
40

See recommended terminal tightening torques in Section 7.

MN722 Receiving & Installation 3-33