Manual 37485A
DTSC-200 - ATS Controller
© Woodward
Page 15/21
Configuration Checklist for Enabling the Gen-2-Gen Mode
Determine the source priority using the "Source 1 priority" and "Source 2 priority" parameters
Assign a discrete input to the "Gen-Gen enable"
LogicsManager
to release an engine start signal
A second engine start signal (
LogicsManager
Parameter 20.18 Engine 1 start) must be configured to a relay out-
put
The "Cooldown timer" for both engines must be configured correctly
Description of the Gen-2-Gen Functions Depending on the Source Priority
Source 1 is Prioritized
If the "Gen-Gen enable"
LogicsManager
becomes "True", genset 1 will be started. This will be indicated on the
display with the "Start engine 1" message.
If genset 1 starts before the configured "S1 start fail delay time" expires, the "Source 1 stable timer" will be start-
ed and the load will be transferred to genset 1.
Special case: genset 1 doesn't start
If genset 1 does NOT start within the configured "S1 start fail delay time", a "Start fail S1" failure will be issued,
genset 2 will be started immediately and the load will be transferred to genset 2.
Source 2 is Prioritized
If the "Gen-Gen enable"
LogicsManager
becomes "True", genset 2 will be started. This will be indicated on the
display with the "Start engine 2" message.
If genset 2 starts before the configured "S2 start fail delay time" expires, the "Source 2 stable timer" will be start-
ed and the load will be transferred to genset 2.
Special case: genset 2 doesn't start
If genset 2 does NOT start within the configured "S2 start fail delay time", a "Start fail S2" failure will be issued,
genset 1 will be started immediately and the load will be transferred to genset 1.
Both Sources are NOT Prioritized (Priority = None)
If the "Gen-Gen enable"
LogicsManager
becomes "True", the gensets 1 and 2 will be started simultaneously.
This will be indicated on the display with the "Start engines" message.
The first genset which starts becomes the "prioritized" source automatically. The engine start command for the
other generator (secondary source) will be de-energized.
Now, the secondary source serves as emergency source in case that the prioritized source fails.
If genset 2 starts before the configured "S2 start fail delay time" expires, the "Source 2 stable timer" will be start-
ed and the load will be transferred to genset 2.
Special case: both gensets do not start
If genset 1 and genset 2 do NOT start within the configured "S1 Start fail delay time" or “S2 Start fail delay
time”, a "Start fail S1" and a "Start fail S2" failure will be issued. Both engine start signals will be disabled again.
All failures must be acknowledged before a new start attempt may be performed.