Installation checklist and start-up86Start-up procedureThe external control connections inside the drive are OK.Mains (input power) voltage cannot be applied to the output of the drive (with bypass connection).Drive, motor connection box and other covers are in place.Action Additional informationSafetyOnly qualified electricians are allowed to start-up the drive. The safetyinstructions must be followed during the start-up procedure.See chapter Safety instructions.Checks with no voltage connectedCheck the tuning of the insulation monitoring device. Optional device. See deliveryspecific circuit diagrams andIRDH265 Operating Manual byBender (code: TGH1249).Pt100 settings (if present)Starting the driveClose the switch fuse (main disconnector).Units with line contactor: Close the contactor by turning the start switchon the cabinet door from OFF into the START position for 2 seconds.Leave the switch to ON position.Control program set-upFollow the instructions in the Firmware Manual to start up the drive andto set the drive parameters.On-load checksCheck that the Prevention of unexpected start-up function (option+Q950, if installed) works. For instructions, see Safety options forACS800 cabinet-installed drives (+Q950, +Q951, +Q952, +Q963,+Q964, +Q967 and +Q968) Wiring, start-up and operation instructions(3AUA0000026238 [English]).Optional function. See deliveryspecific circuit diagrams.Check that the cooling fans rotate freely in the right direction, and the airflows upwards.A paper sheet set on the intake(door) gratings stays. The fans runnoiselessly.Check the direction of rotation of the motor.Check the correct operation of the emergency-stop circuits from eachoperating location. For instructions, see Safety options for ACS800cabinet-installed drives (+Q950, +Q951, +Q952, +Q963, +Q964, +Q967and +Q968) Wiring, start-up and operation instructions(3AUA0000026238 [English]).Optional function. See deliveryspecific circuit diagrams.Check that the Safe torque off function (option +Q968, if installed) works.For instructions, see Safety options for ACS800 cabinet-installed drives(+Q950, +Q951, +Q952, +Q963, +Q964, +Q967 and +Q968) Wiring,start-up and operation instructions (3AUA0000026238 [English]).Optional function. See deliveryspecific circuit diagrams.Check that ...