Chapter 3 – Electrical InstallationACS/ACC/ACP 604/607 DrivesACx=ACS/ACC/ACP3-9Pulse EncoderInsulation (ACP600)The tachometer shall be insulated electrically from stator or rotor toprevent forming of current path through the tachometer. The usualcoupling-type encoder must have an electrically insulating coupling.When a hollow-shaft type tachometer is used, the insulation can beimplemented by insulating the ball joints of the engaging arm, orinsulating the bar of the engaging arm. Shield of the tachometer cableshould be insulated from the tachometer frame. The other end of theshield is grounded at the converter drive.Installation ofOptional Modules andDrive WindowThis section gives general installation instructions for Drive Window PCtool and ACx 600 optional modules, such as fieldbus adapters, I/Oextension modules and the pulse encoder interface. Connectionexamples are given at the end of the section.Placement The module should be installed on the DIN mounting rail inside thecabinet. Follow the instructions given in theMechanical Installationchapter of the module manual.Power Supplyfor the ModuleThe 24 V d.c. supply for one optional module is provided by the NIOC/NIOCP board of the converter (NIOC: terminal X23, NIOCP: terminalX4). The location of the NIOC/NIOCP board is shown in thedimensional drawings (Appendix B).Fiber Optic Link Optional modules are connected via a DDCS fiber optic link to theNAMC board or NDCO board (mounted on top of the NIOC board). Theterminals on the NAMC/NDCO board to which the cables areconnected are as follows:* on NDCO board when NAMC-1 board is usedObserve color codes when installing fiber optic cables. Blue connectorsshould go to blue terminals, and grey connectors to grey terminals.In case multiple modules are installed on the same channel, they mustbe connected in a ring.Module Type Channel TerminalsFieldbus Adapter Modules CH0 V13*, V14*I/O Extension Modules CH1 V15, V16Pulse Encoder Interface Module CH2 with ACS 600Standard ApplicationProgram 5.0V17, V18CH1 with ACC ApplicationProgramV15, V16Double Pulse Encoder InterfaceModule (for ACP 600 only)CH2 V17, V18DriveWindow CH3 V19, V20