text: <s>[INST] Max. Motor cable length with/without AC line Filter for Kinetix 5700 Hi everyone, I am using MPM-B1653F-MJ7AAA ( quantity - 1 ) connected with kinetix 5700 2198-S086-ERS3 single axis inverter (quantity - 1). VPL-B115E-PK14AS ( quantity - 6 ) connected with kinetix 5700 2198-D020-ERS3 dual axis inverter (quantity - 3). Single DC bus supply ( 2198- P141) which is 480V AC input So, this DC bus supply is connected with the above 4 invertes. And I am using Single turn Drive to motor feedback cable (so i found that the max cable length is up to 90 m). I am using AC input power type WYE grounded. In the 2198-UM002 manual, I have read that, The sum of the inverter motor-power cable length for all invertes on the same DC bus-Sharing group must not exceed, -1200m when used with 2198-DBRxx-F line filters. -400m when used with 2198-DBxx-F line filters. Since i am using 7 motors, it would be 7*90 = 630m. My questions are: 1. So, in my case is it mandatory to use AC line Filter ? 2. If it is not mandatory will each of my 7 motors still support 90m each with out using the AC line filter. 3. what would be the max. combined length of motor power cable if I am not using AC line Filter? WIll it be 90m each or something else? 4. And how come the combined cable length is 1200m when used with 2198-DRxx-F line filters ? Is it like ( 13 motors * 90m =1170 [approx 1200]) ? [/INST] Hello Chalagulla Please review this manual Drives in Common Bus Configurations with Kinetix 5700 Bus Supplies but you have found all our recommendation already i guess. Yes , we strongly recommended to use a Filter that match your application. an AC line filter have an important role to protect you installation and guaranty the good working condition do you have a specific application that request a remove of the filters ? details please best regards \\n </s>