Baldor mn722 manual Control Circuit Connections, Converter Control Board Connections

Control Circuit Connections

There are two control boards in a Series 22H Vector Control. The Converter Control Board is used to rectify and process the incoming power. The Inverter Control Board provides the inverting and power output functions. The keypad is normally connected to the Inverter Control Board. Each converter board has its own J1 terminal strip. The Inverter Control Board provides the user interface for most external connections.

Converter Control Board Connections

All necessary connections for the Converter Control Board have been made at the factory prior to shipment.

The jumper between J1-8 and J1-17 provides the enable signal to allow converter operation. The jumper between J1-39 and J1-40 provides +24VDC from the internal supply to allow the opto isolated input at J1-8 to operate. These jumpers should remain installed at all times.

Sometimes it is necessary to troubleshoot the converter section using the isolated opto outputs. Figure 3-15 shows how to connect external relays to the board to “Sink” or “Source” the relay current.

The function of each opto output is as follows: (these functions cannot be changed)

J1-19	Ready
J1-20	At Voltage
J1-21	Fault
J1-22	Overtemperature Warning

Figure 3-15 Converter Control Board Opto Output Wiring

24Com	17
	18
	19
Optional	20
Customer	21
Supplied
Relays &	22
Diodes

39

41 42 43 44

+24VDC

24Com	17	39	+24VDC
	18
	19	41
	20	42	Optional
	21	43	Customer
			Supplied
	22	44	Relays &
			Diodes

Using Internal Supply

(Sinking the Relay Current)

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

Using Internal Supply

(Sourcing the Relay Current)

See recommended terminal tightening torques in Section 7.

MN722 Receiving & Installation 3-21