Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 192)

Publication 1398-5.2 – PDF 1997
11-10 Maintenance and Troubleshooting
– If the box is checked, the resistance should read
approximately 1 Ohm.
– If the box is not checked, the resistance should read very
high (> 1 MOhm).
B. Brake Enable box, then measure the resistance between J1-49
and J1-50.
– If the box is checked, the resistance should read
approximately 1Ohm.
– If the box is not checked, the resistance should be very high
(> 1 MOhm).
A load is necessary to test the transistor outputs listed below. A 1
kOhm resistor may be connected from the transistor output (J1-
42, J1-43, J1-44 or J1-45) to the I/O COM (J1-6).
C. Digital Output 1, then measure the voltage between J1-42 and
J1-13.
– If the box is checked, the voltmeter should read
approximately +24 VDC.
– If the box is not checked, the voltmeter should read
approximately 0 VDC.
D. Digital Output 2, then measure the voltage between J1-43 and
J1-13.
– If the box is checked, the voltmeter should read
approximately +24 VDC.
– If the box is not checked, the voltmeter should read
approximately 0 VDC.
4. After the test has been completed you may select Close to exit
Output Diagnostics window.
If you determine that a digital output is defective, refer to “Return
Procedure” on page Help-7 to return the unit.