Vision REVO Product User Manual page 44


dry contact connection
Step 11：
In order to provide or accept quick response fault/danger protection actions, our REVO system
provides 1 input dry contact I1 and 3 output dry contact D1 D2 D3.Its fault input and output dry
contacts are shown in the figure below
Figure 10.14 dry contact define
DO dry contact is passive dry contact, normally open in normal state. I1 dry contact can be
defined as EPO, and dry contact fault is defined as factory mode by default. Please refer to
relevant documents of our company.If you have special needs, please contact us.
Item Definition
Charger shutdown
D1
signal
Discharge prohibited
D2
signal
Secondary protection
D3
signal
I1 EPO(input)
Description
The battery is fully charged or the number of primary
protection cabinets in the battery system exceeds the
redundant number,D1 is valid to normally close.
When discharging, the number of battery cabinets with
primary protection or failure exceeds the redundant
number,D2 is valid to normally close.
If any CBMS circuit breaker is open or trip, D3 is valid to
normally close.
After this signal input is valid, the circuit breakers of all
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