3.1 Main Circuit Wiring3-33 Wiring and Connection3.1 Main Circuit WiringThe names and specifications of the main circuit terminals are given below.Also this section describes the general precautions for wiring and precautions under special environments.3.1.1 Main Circuit TerminalsThe names and specifications of the main circuit terminals are given below.Note: For the purpose of this description, the SERVOPACK is shown with the front cover removed. Always keep the frontcover attached when using the SERVOPACK.(1) Multi-Winding Drive UnitThe pin arrangements of the control power supply connectors (CN7A/CN7B) are given below.CN7A/BConnectors/Terminal Name SpecificationsCN7A/B Control power supplyinput connectorCN7A is the 24-VDC (-15% to +15%) input connector.CN7B takes the same input, but it is normally not necessary to connect it.Ground terminal Connect this terminal to the power supply ground terminal and thenground it.CN7A CN7BPin No. Signal Name Function Pin No. Signal Name FunctionB1 N24 V Control powersupply 0 V B2 N24 V Control powersupply 0 VA1 P24 V Control powersupply 24 V A2 P24 V Control powersupply 24 V