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Appendix B: DO Connecting to Relay Card MD28IR1
 
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Physical Appearance
The MD28IR1 is simply installed on the AC drive, as shown in the following gure.
 
The MD28IR1 provides one relay output. The specication is as follows: 
Relay outputs
R/A-R/B Normally-closed (NC) terminal
Contact driving capacity 
250 VAC, 3 A, COSø=0.4
30 VDC, 1 A
R/A-R/C Normally-open (NO) terminal
The MD28IR1 is connected to the DO terminal on the control board of the AC drive. The wiring is as follows:
Appendix B: