Toshiba Q7 Flow Installation And Operation Manual page 29

Figure 7. ST activation using the MS1 AUX circuit configuration.
All Q7 Flow ASDs are equipped with internal DC bus fuses. However, internal primary power input fuses
are optional. When connecting two or more drive systems that have no internal fuses to the same power
line as shown in Figure 8, it will be necessary to select a circuit-breaking configuration that will ensure
that if a short circuit occurs in system 1, only MCCB2 trips, not MCCB1. If it is not feasible to use this
configuration, insert a fuse between MCCB2 and system 1.
Figure 8. Circuit breaker configuration.
Read and understand all safety warnings before operating this equipment!
26 Q7 Flow Installation and Operation Manual
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net