SECTION 7 INTERNAL JUMPER CHANGES FOR 115/230
VAC AND 2-WIRE/3-WIRE RTD CONVERSIONS
Input power conversion requires changes on the Main PC Board
(PCB). RTD 2-wire to 3-wire conversions also requires jumper
changes on the Main PCB. THESE MODIFICATIONS SHOULD BE
MADE ONLY BY A QUALIFIED TECHNICIAN.
V
oltage conversion (from 115VAC to 230VAC or vice versa) IS
allowed in the following models:
CN9111/CN9111A CN9211/CN9211A BD9011/BD9011A
CN9112/CN9112A CN9212/CN9212A BD9012/BD9012A
CN9121/CN9121A CN9221/CN9221A BD9021/BD9021A
CN9122/CN9122A CN9222/CN9222A BD9022/BD9022A
CN9131/CN9131A CN9231/CN9231A
V
oltage conversion IS NOT allowed in the following models under
any circumstances. Doing so, will result in permanent damage to
the controller.
CN9141/CN9141A CN9241/CN9241A
CN9141-230V/CN9141A-230V CN9241-230V/CN9241A-230V
CN9151/CN9151A CN9251/CN9251A
CN9151-230V/CN9151A-230V CN9251-230V/CN9251A-230V
BD9041/BD9041A
BD9041-230V/BD9041A-230V
BD9051/BD9051A
BD9051-230V/BD9051A-230V
7.1 TO REMOVE MAIN PC BOARD
Remove the controller from the panel (if installed). The Main PC
Board (PCB) must next be removed before any modifications can
be made. Refer to Figure 7-1 and proceed as follows:
1. Remove the rear socket on the controller.
2. Separate the output module from the controller body by gently
prying both slots in the rim of the cover with a screwdriver.
Cover rim will bow out to release module tabs.
71
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