Toshiba 18 - 1250 A Benutzerhandbuch

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TE Series        
          Digital Solid State Soft Starters   18 – 1250A 
22 
4.2.9   Bypass Contactor Control 
On TE…-BP version (and NEMA 12 enclosed) starters, an internal 
dedicated connection is used at the factory for automatically controlling 
the Bypass Contactor. Field wiring for Bypass Contactor operation is not 
required.  
 
ƒ  4.2.9.a  
Independent Bypass Contactor Control 
The TE…-BP Series starters use standard industrial contactors that 
can be controlled independent of the starter electronics if 
necessary. When doing so, it is necessary to size the starter based 
upon the ATL (Across-the-Line) selection chart so that the 
contactors are rated for ATL duty instead of the normal Shunt Duty 
(see section 1.2.3). Supplemental overload protection will be 
required (see section 3.1.3.c). 
 
Units have external terminal blocks marked for this purpose (see 
Appendix 5 for drawings). A dry (voltage free) contact closure 
between these terminals will close the bypass contactor 
immediately. The Bypass Contactor coil voltage is the same as the 
control voltage (120VAC unless the optional 240VAC control is 
specified), and the potential on these terminals is the same as the 
coil voltage. 
 
No field wiring is necessary to these terminals if this feature is 
not used.
 
 
For all other styles of TE Series, the At-Speed signaling can be 
programmed into any of the three Output relays above (section 4.2.8 
and Table 5.6.10).