DC power supply modules Wiring Connecting busbars 6 6.6 6.6.8 6.6.8 Connecting busbars SSP94PN401 Fig. 6.6-4 Example: connecting busbars to DC power supply module Proceed as follows to connect the busbars: 1. If devices of the interconnected system have already been in operation: – Ensure that the power supply system is switched off by checking the voltage at the supply terminals. – If necessary, switch off the power supply and wait at least 3 minutes. 2. Loosen the busbar screws but do not remove them completely. 3. Push the busbars as far as possible to the left towards the adjacent busbar. – Ensure that there is good contact to the adjacent busbar. 4. Tighten the busbar screws.
– Tightening torque: 3.2 ... 3.5 Nm (28 ... 31 lb-in). 5. Screw all components onto the mounting plate. – Tightening torque: 3.4 Nm (30 lb-in). 6.6-9 EDS94SPP101 EN 3.1-04/2007