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Configuring/Verifying Reference Jumper Settings
To utilize this connectivity, there are two jumper settings on the VIM1 that must be set properly before connecting
the VIM meters to the controller's communication bus. These jumpers reside behind the back cover of the VIM1 and
are used to provide a physical reference for the RS485 communication link. Setting the jumper position is based on
the system rectifiers and DC bus potential. Note: Improper settings of these jumpers can result in damage of the
RS485 communication circuitry on the VIM, controller, or both when connected.
Remove the three Philipps screws and cover to gain access to the 3-pin J10 and J11 headers on the VIM1 circuit
pack. Note: a future enhancement will allow the cover to remain intact and while making the jumpers accessible.
Figure 10 shows the two jumpers with pin 1 identified.
•
The factory default position of the jumpers for VIM1 J10 and J11 header is positions 1/2. This setting coincides with the
correct settings for Power Plants with Millennium 2 or Pulsar Plus DC controllers managing 595 (GPS), NE (Infinity), or
GP100 rectifiers.
•
For VIM1s in Power Plants with system controllers managing EP (SPS), QS (CPS), or CP (CPL) family of rectifiers the
jumpers shall be placed in position 2/3 on J10 and J11.
•
For systems where there are no ABB rectifiers and/or a ABB controller is dedicated to operate as a "Standalone"
distribution monitor that is connected only to the system VIM1s set the jumpers to position 2/3 on J10 and J11.
The following table summarizes the required jumper settings.
Setting The VIM1 Device ID
In order to connect the VIM1 to a system controller RS485 GP bus the VIM1 must be able to be uniquely identified by
the controller. To configure a unique ID for the VIM1 go to the front panel Menu System Parameters Device ID #.
Enter the menu and set the ID to a unique value between 1-16 (generally start with 1) and save the configuration.
Repeat the configuration to each VIM1 in the system.
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Figure 10 VIM1 J10 And J11 Settings
Micro-BDCBB_QSG
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2 / 3
1 / 2
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Rev. 04
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