A roof fall occurred in 1Right 2 South (MMU 002-0) cont. miner section at x-cut 3 between #1 & #2 entries. Fall occurred near the Variable Frequency Drive (VFD) belt controller, but did not strike them. Fall did not impede passage of persons or block an escapeway. Fall measured approx 5'H x 18'W & 18'L. There was a fault near fall. Entire area was bolted w/5'bolts, mats & wire mesh