LiftMaster RSL12U RSL12U Troubleshooting Guide Manual - Page 21

POWER MODELS SL585U AND SL595U (SINGLE PHASE) CONTROL BOARD BIPART DELAY 4 2 6 OPEN LEFT OPEN 8 RIGHT HANDING MODEL SL585U CONTROL BOARD POWER BOARD MODEL SL595U CONTROL BOARD POWER BOARD ANTENNA CURRENT MOTOR DRIVE RPM & LIMITS ALARM EXP. SENSOR ID RESET BOARD 24 VAC IN POWER BOARD SINGLE PHASE J10 J8 J15 J14 J13 CURRENT SENSOR SWITCH (YELLOW) PWR IN HOT (BLACK) 120V (BLACK) OUTLET (WHITE) 120V J11 J12 J2 J4 J6 J16 SWITCH (ORANGE) COMM (WHITE) 120V (BLACK) 208V (RED) 240V (ORANGE) TRANSFORMER 240V J9 J17 J5 J3 J7 White Black Red Orange 120V PWR IN NEUTRAL (WHITE) J1 240V Black White JUNCTION BOX GND CLASS 2 SUPPLY 24 VAC 500 mA MAX COMM LINK BA JUNCTION BOX AC POWER SWITCH JUNCTION BOX Blue Yellow COM 120 208 240 24 VAC 4 Check the transfomer and control board.* Check the blue and yellow 24 VAC IN wires at the control board. The voltage should be about 21-28 Vac. If the voltage is NOT 21-28 Vac, replace the transformer. If the voltage is 21-28 Vac, replace the fuse. If the fuse is good, replace the control board. 480 3.15A FUSE TRANSFORMER Fuse To configure the motor for 208V, swap the orange and red wires and plug motor into the 240V position. 3 Check the power board.* Check the following transformer wires on the power board: 120V Applications: Check the white and black wires, voltage should be 120 Vac 208V Applications: Check the white and red wires, voltage should be 208 Vac 240V Applications: Check the white and orange wires, voltage should be 240 Vac If the voltage is not correct, replace the power board. 2 Check the AC power switch. Is it ON? AC POWER SWITCH * NEUTRAL HOT GROUND INCOMING POWER White Black Green 1 Check the incoming power.* Check breaker first, then check wiring coming into operator. The voltage should be 120, 208, or 240 Vac depending on the application. 20