
4
Procedure for replacing or maintaining ATS module in ITS product
1. To turn “Source Switch” to “Source A” position if ATS module powers
load by Source A, otherwise to turn “Source Switch” to “Source B”
position.
ATS
Source A
Source B
LOAD
Source
Switch
Output
Switch
1.
2.
2. To turn “Output Switch” from “Normal” to “Bypass” position. It will have
4ms maximum breaker time at this step. Now the load power comes
from Bypass loop.
Source A
Source B
LOAD
Source
Switch
Output
Switch
1.
2.
3. To maintain or replace ATS module.
4. To command output source of ATS module same as Bypass loop.
5. To turn “Output Switch” from “Bypass” to “Normal” position. It will have
4ms maximum breaker time at this step. Now the load power comes
back to ATS loop.