Oper ating Instr u ctions CM Synchronous Ser v omotors 21 5 Electrical Inst allation DC and AC circuit disconnect qu ick application of the brake BMK brake rectifier DC and AC circuit disconnect quick applicati on of the brake integrated voltage relay integrated 24 V DC control input Legend 51236AXX K12 15 14 13 1 2 3 4 2 U AC BMH W1 V1 U1 54 3 PE 51237AXX K12 15 14 13 1 2 3 4 2 U AC 24 DC BMK W1 V1 U1 54 3 PE 1B r a k e c o i l 2 A pply voltage as indicated on the nameplate to release the brake switch contacts according to utilization category AC3 to EN 60994741 BMH To release and heat the brake at zero speed apply the voltage as indicated on the nameplate K12 not activated Heati ng operation Contact rating of terminals 1 and 4 at BMH AC11 terminal 3 AC 3 in accordance with EN 6094741 3 C onnection cable for brake motor