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Last modified by Theodore Xu on 2024/04/10 09:11
From version 31.1
edited by Leo Wei
on 2023/12/29 09:51
Change comment: There is no comment for this version
To version 36.1
edited by Theodore Xu
on 2024/04/10 09:11
Change comment: There is no comment for this version

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1 -XWiki.admin
1 +XWiki.AiXia
Content
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25 25  
26 26  **RS485 Connection Topology**
27 27  
28 -RS485 bus connection topology is shown in the following figure. 485 bus is recommended to use shielded twisted pair (STP), 485+, 485-: Adopt twisted pair to connect; Only 120 Ω terminal matching resistors are connected at both ends of the bus to prevent signal reflection; All node 485 signal grounds are connected together; Connect 128 nodes at most, and the distance between branches of each node should be less than 3m.
28 +RS485 bus connection topology is shown in the following figure. 485 bus is recommended to use shielded twisted pair (STP), 485+, 485-: **Adopt twisted pair to connect**; Only 120 Ω terminal matching resistors are connected at both ends of the bus to prevent signal reflection; All node 485 signal grounds are connected together; Connect 128 nodes at most, and the distance between branches of each node should be less than 3m.
29 29  
30 30  **Multi-node connection mode**
31 31  
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51 51  
52 52  The maximum number of nodes and transmission distance supported by our standard RS485 circuit at different rates are shown in the following table.
53 53  
54 +The communication distance between the inverter and other devices should not exceed **200 meters**, if it exceeds two hundred meters it may cause unstable communication. If the communication distance **exceeds 200 meters**, the following measures need to be included:
55 +
56 +* Communication cable：Adopt twisted pair to connect
57 +* anti-interference magnetic ring
58 +
54 54  |Transmission distance (m)|Rate (kbps)|Number of nodes|Wire diameter
55 55  |100|115.2|128|AWG26
56 56  |1000|19.2|128|AWG26
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61 61  
62 62  (% class="box infomessage" %)
63 63  (((
64 -**✎Note:VM series manufactured after April 2023 can support this feature！！**
69 +**✎Note:VM series manufactured after April 2023 can support this feature！**
65 65  )))
66 66  
67 67  NPN/PNP switching has been added to the VM series machines, enabling fast switching between the two modes.
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106 106  
107 107  The control signals of VB series products are compatible with both NPN and PNP signal types.
108 108  
109 -(% class="wikigeneratedid" id="HScheme" %)
110 -**Scheme**
111 -
112 -|=**Function**|=**Address definition**|=**Data meaning**
114 +|= |=**Low-power model**|=**High-power model**
113 113  |Adapted power|(((
114 114  220V：0.75-2.2kW
115 115  
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253 253  (% style="text-align:center" %)
254 254  [[image:Three-wire control mode 2.png||height="332" width="436"]]
255 255  
256 -**Among them: **SB1 Stop button;SB2 Reverse and reverse control; buttons SB3 Run button;
258 +**Among them: **SB1 Stop button;SB2 Forward and reverse control buttons; SB3 Run button;
257 257  
258 258  Refer to the following table for running commands corresponding to switching signals:
259 259