Left full open Medium opening Right full open �D-�E is ON at slightly before full left open. OFF at full left open. OFF at full right open. �D-�F is ON at slightly Right open No-voltage before full right open. SLS-2 Right open Limit SLS-1 OLS-2 Left open No-voltage Left open Limit OLS-1 Left open lamp Right open lamp Actuator (optional) Space heater Thermal protector C M SLS-1 OLS-1 OLS-2 SLS-2 Output contact limit switch on left open side Output contact limit switch on right open side 5 7 6 4 3 2 1 Left open Right open Stop Switching chart Ball shape (plan view) Actuator Space heater Thermal protector C M SLS-1 OLS-1 Left open Right open Stop Left open lamp Right open lamp SLS-2 OLS-2 Output contact limit switch on left open side Output contact limit switch on right open side Note: The wiring diagram shows the state at the completion of right open movement. Switching chart Ball shape (plan view) Left open Limit OLS-1 OLS-2 Left open No-voltage Right open Limit SLS-1 Right open No-voltage SLS-2 OFF at full right open. �M-�O is ON at slightly before full right open. OFF at full left open. �J-�L is ON at slightly before full left open. Left full open Medium opening Right full open 20 16 15 14 13 12 11 4 6 5 3 2 1 142 3 WAY BALL VALVE TYPE 23 15mm - 50mm 3 WAY BALL VALVE TYPE 23 65mm - 100mm