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HVPA/LVPA Motor/Brake Interfaces

There are identical motor/brake connectors located on the High Voltage Power Amplifiers (HVPA) of the Guidance 3000 (excluding the 30A version, see below), the 4-axis High Voltage Power Amplifier (4AHV) for the Guidance 2000, and the two-Axis Slave High Voltage Power Amplifier (2AHV) for the Guidance 2600. Each HVPA has two motor drivers per board with two connectors mounted at the top edge. Each 4AHV has four motor drives with a connector mounted at each corner. Each 2AHV has two motor drives with a connector at each corner of the high side of the sheet metal. These connectors are numbered on their tops and are illustrated in Figure 11-29, Figure 11-30, and Figure 11-31 for each type of controller.

Electrical Shock
The High Voltage Power Amplifiers (HVPA/_AHV) and the Motor/Brake connectors and their leads contain unshielded high voltage pins, components and surfaces. It is intended that the Guidance Controllers with these components be mounted in a cabinet or machine chassis that is not accessible when AC line power is turned on.

Figure 11-29: Motor/Brake Connectors

Figure 11-30: Motor/Brake Connector

Figure 11-31: Motor/Brake Connectors

Mating plugs and pins for the motor/brake connectors are shown below (Figure 11-32 and Table 11-19).

NOTE:  Although all of the motor/brake connectors have a brake signal, this is only provided as a wiring convenience. The Guidance Controllers turn all brakes on and off at one time, so independent brake control for each motor is not supported via the dedicated IO lines available in this connector. If required, individual brake control can be implemented using general purpose digital output signals.

Figure 11-32: Mating Plug

While many brakes draw less than 0.5A, for some large motors, the current draw can be much larger. If more than 2A is required for all brakes, an external relay should be used to separately power the brakes to avoid damaging the controller.

The 30A version of the Guidance 3400 controller, the Guidance 3430, utilizes a different motor/brake connector that can support larger gauge wires and higher motor currents. Each of the High Voltage Amplifier (HVPA2) boards has two motor drives and two connectors mounted on the side of the board. Figure 11-33 shows the numbering for the motor/brake connectors.

Figure 11-33: Numbering for Motor/Brake Connectors

Electrical Shock
The High Voltage Power Amplifiers and the Motor/Brake connectors and their leads contain unshielded high voltage pins, components and surfaces. It is intended that the Guidance Controllers with these components be mounted in a cabinet or machine chassis that is not accessible when AC line power is turned on.

Mating plugs and pins for the motor/brake connectors are shown in Figure 11-34 and Table 11-19.

NOTE: Although all of the motor/brake connectors have a brake signal, this is only provided as a wiring convenience. The Guidance Controllers currently turn all brakes on and off at one time, so independent brake control for each motor is not supported via the dedicated IO lines available in this connector. If required, individual brake control can be implemented using general purpose digital output signals.

Figure 11-34: Mating Plugs & Pins