Read Channel Set Point

Diagnostics > Hardware Location > Pen Panel Cabinet > Shim Supply Diagnostics

Diagnostics > System Function > Magnet > Shim Supply Diagnostics

This diagnostic provides a read back of the last commanded current for the shim supply.

This diagnostic is part of the Shim Supply Diagnostics, that comprise a series of tests that verify and display various shim supply values by communicating from the SCP to the shim supply via the CAN link.

• Shim supply

• Coil channels

• RTD channels

Software configuration:

• Standard software

• CAN communications NOT emulated

Hardware configuration:

• CAM Chassis: SCP and AGP processor boards and bridge board

• Shim supply, cabling, etc.

Figure 1. Shim Supply Block Diagram

1. Set the Test Duration to the number of seconds desired.

2. If desired, you can induce current into the shim supplies using the Set Current Test field, by entering a value of 0.5 amps for each channel. The test result values should match the values entered.

3. Select Read Channel Set Point, then press Run.

4. The diagnostic issues a command that instructs the shim supply to return the present current for each coil channel.

   The shim supply is first checked to ensure it is in the proper state. Commands to the shim supply are issued via the CAN interface on the SCP.

5. Examine the display results.

An example of test results is shown in the illustration below. On the actual display, results in red text indicate input, shim supply state, and test condition errors.

Figure 2. Sample Output

Before scanning, perform a TPS reset.