I'm going to answer my own question and would appreciate someone confirming its correctness.
Even though SAP knows that the monthly depreciation is 1,000, it apparently isn't smart enough to determine with a cap date of 01/.01/13 and a takeover date of 06/30/14 with legacy depreciation posted through 06/30/14 that the depreciation already posted in 2014 is 6,000.
it appears that the depreciation from the start of the takeover year to the takeover date must be entered in the field ordinary depreciation posted as shown below.
As shown below the planned depreciation for period 7 is now 1,000 as desired, rather than 7,000 as previously calculated.