This chapter provides information required to selectSERVOPACKs, such as specifications, block diagrams,dimensional drawings, and connection examples.2.1 Ratings and Specifications . . . . . . . . . . . . . 2-22.1.1 Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22.1.2 SERVOPACK Overload ProtectionCharacteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52.1.3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62.2 Block Diagrams . . . . . . . . . . . . . . . . . . . . . . 2-92.2.1 SGD7S-R70A, -R90A, and -1R6A . . . . . . . . . . . . 2-92.2.2 SGD7S-2R8A . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-92.2.3 SGD7S-3R8A, -5R5A, and -7R6A . . . . . . . . . . . 2-102.2.4 SGD7S-120A . . . . . . . . . . . . . . . . . . . . . . . . . . 2-112.2.5 SGD7S-180A and -200A . . . . . . . . . . . . . . . . . . 2-132.2.6 SGD7S-330A . . . . . . . . . . . . . . . . . . . . . . . . . . 2-142.2.7 SGD7S-470A and -550A . . . . . . . . . . . . . . . . . . 2-152.2.8 SGD7S-590A and -780A . . . . . . . . . . . . . . . . . . 2-162.2.9 SGD7S-R70F, -R90F, and -2R1F . . . . . . . . . . . . 2-162.2.10 SGD7S-2R8F . . . . . . . . . . . . . . . . . . . . . . . . . . 2-172.3 External Dimensions . . . . . . . . . . . . . . . . . 2-182.3.1 Front Cover Dimensions and ConnectorSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . 2-182.3.2 SERVOPACK External Dimensions . . . . . . . . . . 2-192.4 Examples of Standard Connections between SERVOPACKs and Peripheral Devices . .2-25Selecting aSERVOPACK2