GE Industrial Solutions ASTAT XT - Manual (Page 69)

69 • Application diagrams
8.15 Reversing with Two Line Contactors
Notes:
• A N.O. auxiliary contact in each of the two line contactors C1 & C2 controls the START/STOP command.
Closure of either contactor will supply main power and a start signal to the ASTAT-XT.
• It is recommended to employ a mechanical interlock between the forward and reverse contactors.
• It is required to delay the transfer between opening of one contactor and closing of second contactor.
•
Phase Sequence
fault must be disabled to operate reversing contactors at the line input of the
ASTAT-XT. Refer section 4.7.7 page 38 for programming.