# VMAX BUS TIPS

**V-MAX BUS SYSTEM in VESTA panels tips:**

## **GENERAL RULES:**

* From one device or bus start to the next, no more than 300 metres may be exceeded.
* Take into account the current required for the system (use calculator or consumption table of the devices).
* Take into account the voltage drop (calculator) If there is a voltage drop, a power supply or isolator-amplifier can be used
* The limit of the BUS system at distance level will depend on the consumption and voltage at each point, if a sufficient current and voltage is guaranteed at each device, the system will operate correctly.

![](https://1580875003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZJzpNocHhYVmD43GZobR%2Fuploads%2FkJM3cGfQK7N1d8tsN6AD%2F4.jpeg?alt=media)

## **CASE 1: ONE LINE OF BUS**

![](https://1580875003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZJzpNocHhYVmD43GZobR%2Fuploads%2FDdiE6bkfDwIc389qsYhZ%2F5.jpeg?alt=media)

## **CASE 2: TWO LINES OF BUS (STAR)**

![](https://1580875003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZJzpNocHhYVmD43GZobR%2Fuploads%2F0KEC5i0t0BwIMF1FI0Vp%2F6.jpeg?alt=media)

## **CASE 3: TREE LINES**

### **CASE 3A. WITH ISOLATOR (Recomended for this CASE)**

![](https://1580875003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZJzpNocHhYVmD43GZobR%2Fuploads%2FSwwfpD08R2KGbr6JOOXE%2F7.jpeg?alt=media)

### **CASE 3B. WITH NO ISOLATOR (TIP: Place resistors in the longest BUS sections.)**

![](https://1580875003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZJzpNocHhYVmD43GZobR%2Fuploads%2FoDEFKSidab3tN1QmBQNk%2F8.jpeg?alt=media)

## **CASE 4: FOUR LINES OF BUS**

![](https://1580875003-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZJzpNocHhYVmD43GZobR%2Fuploads%2FhXYqsyb1DuhpPDnRTCEj%2F9.jpeg?alt=media)

## CONSUMPTION TABLE OF V-MAX BUS DEVICES

<table data-header-hidden data-full-width="false"><thead><tr><th></th><th></th><th></th><th></th></tr></thead><tbody><tr><td>DEVICE</td><td>Current Consumption (mA)</td><td>Current Consumption (A)</td><td>Voltage</td></tr><tr><td>892-EX-BUS</td><td>130</td><td>0,1300</td><td>4,50</td></tr><tr><td>KPT-35-BUS</td><td>171</td><td>0,1710</td><td>4,50</td></tr><tr><td>BX-32-BUS</td><td>364,9</td><td>0,3649</td><td>4,50</td></tr><tr><td>892-BUS</td><td>229,8</td><td>0,2298</td><td>4,50</td></tr><tr><td>892-EX-BUS</td><td>397,7</td><td>0,3977</td><td>4,50</td></tr><tr><td>DC-23-BUS</td><td>30,6</td><td>0,0306</td><td>4,50</td></tr><tr><td>DCSV-29-BUS</td><td>13,2</td><td>0,0132</td><td>4,50</td></tr><tr><td>IR-35-BUS</td><td>41,4</td><td>0,0414</td><td>4,50</td></tr><tr><td>SR-35-BUS</td><td>64,4</td><td>0,0644</td><td>4,50</td></tr><tr><td>AMP-BUS</td><td>3,58</td><td>0,0036</td><td>4,50</td></tr><tr><td>WEZ</td><td>31</td><td>0,0310</td><td>4,50</td></tr><tr><td>WEZC-8</td><td>95</td><td>0,0950</td><td>4,50</td></tr><tr><td>WEP</td><td>240</td><td>0,2400</td><td>6,50</td></tr><tr><td>TSP-BUS</td><td>1038</td><td>1,0380</td><td>6,00</td></tr><tr><td>WGT-1-COMBO-F1</td><td>354,6</td><td>0,3546</td><td>8,00</td></tr><tr><td>KP-35-COMBO</td><td>82,7</td><td>0,0827</td><td>4,50</td></tr></tbody></table>