Baldor BC142 Installation And Operation Manual

Also see for BC141: Installation & operating manual

Baldor BC142 Installation And Operation Manual Manual pdf 21 page image

20J1 Set for208/230 Volt AC Line Input(Factory Setting)J1 Set for115 Volt AC Line Input230V 115VJ1230V 115VJ17.2 Motor Voltage and DC Tach-Generator Selection –Jumper J2 is factory set to the “90V” position onCatalog No. BC141, for 90 Volt DC motors, and set tothe “180V” position, on Catalog Nos. BC142, 142-6,for 180 Volt DC motors. To set Catalog No. BC142,142-6 for step-down operation (208/230 Volts AC lineinput and 90 Volt DC output), set Jumper J2 to the“90V” position). To set the control for tach-generatorconnection, set Jumper J2 to the “T” position (allmodels). See Figure 12.Notes: 1. On Catalog No. BC141, the “180V” position is not available on Jumper J2. 2. On Catalog No.BC142-6, do not set the output voltage to 180 Volts DC when the AC line input is set to 115 Volts.FIGURE 11 – AC LINE INPUT VOLTAGE SELECTION(JUMPER J1)8 AC LINE FUSINGA 25 Amp AC line fuse is factory installed in the AC line fuse holder as shown in Figure 1, on page 10. It is rec-ommended that a 12 Amp AC line fuse be installed for motors rated 7.5 Amps DC or less. Fuses should be nor-mal blow ceramic 3AG, MDA, or equivalent. On domestic 230 Volt AC lines, separate branch circuit protection forCatalog No. BC141 Catalog Nos. BC142 and BC142-6J2 Set for90 Volt Motor(Factory Setting)J2 Set forTach-GeneratorJ2 Set for180 Volt Motor(Factory Setting)J2 Set for90 Volt Motor(Step-Down)J2 Set forTach-GeneratorT 90V 180VJ2T 90V 180VJ2T 90V 180VJ2T 90V 180VJ2T 90V 180VJ2FIGURE 12 – MOTOR VOLTAGE & DC TACH-GENERATOR SELECTION (JUMPER J2)