Eaton ATC-900 - Input Programming Rules

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Instructional Booklet
Effective: March 2021 Page 27
Operation and Maintenance Manual,
Automatic Transfer Switch Controller, ATC-900
5.6 Programming Setpoints for Inputs (Rules)
There are some rules to follow when particular Inputs are pro-
grammed.
1. In the setpoints, Time Delay Neutral (TDN) must be set to
"n/a" when using "Load Decay." Conversely, "Load Decay"
must be set to "n/a" if "TDN" is being used.
2. The voltage unbalance protection can be disabled by the user
simply by setting them to "0".
3. With the Input of the controller programmed to the following
inputs, associated setpoints will also be required to be appro-
priately set.
48M1 I/O Module (1) O O O O O O O O O O
48M2 I/O Module (2) O O O O O O O O O O
48M3 I/O Module (3) O O O O O O O O O O
48M4 I/O Module (4) O O O O O O O O O O
48U USB Port for Memory Stick S S S S S S S S S
Programmable Outputs
80B Input Terminal Blocks 0 0 0 S S 0* 0* S S
80C Output Terminal Blocks 0 0 0 S S O O S S
81A General Alarm Indication Contact (OUTPUT) P P P P P P P P P O
81B Monitor Mode (OUTPUT) P P P P P P P P P O
81C ATS in Test (OUTPUT) P P P P P P P P P O
81D Engine Test Aborted (OUTPUT) P P P P P P P P P O
81E Cooldown in Process (OUTPUT) P P P P P P P P P O
81F Engine Start Contact Status Gen 1 & Gen 2 (OUTPUT) P P P P P P P P P O
81G LOAD SHED - S2 Inhibit On (OUTPUT) P P P P P P P P P O
81GL LOAD SHED - S2 Inhibit On w/white indicating light OF OF OF OF OF OF OF OF OF O
81H ATS on Bypass (OUTPUT) P P P P P P P P P O
Only one type NO or NC may be programmed per system.
81J Lockout PF PF PF PF PF PF PF PF PF I
81K Monitor Mode (NC or NO) P P P P P P P P P I
81N Health P P P P P P P P P 0
81P BP Safety Interlock Alarm (Unit will not transfer) P P P P P P P P P I
81R Waiting for Sync P P P P P P P P P 0
81S Closed Transition Inhibit (81T with Switch) P P P P P P P P P I
Three Source ATS Control (Primary/Secondary)
90A Primary Control Gen 2 Start Status (OUTPUT) P P P P P P P P P O
90B Secondary Input (INPUT) P P P P P P P P P I
* Contactor D & E Wallmount and D & E frame Closed Transition have Input Terminals Blocks with S2 Engine Start.
Table 8. ATC-900 Features and I/O (Cont.).
ATC-900 FEATURES
P = Programmable (Internal or I/O), PF = Prgammable Fixed I/O
O = Optional, OF = Optional Fixed, S = Standard
CONTAC TOR MCCB MAGNUM
ATC9 BIC9 CBC9 CTC9 ATx9 ATV9 CBV9
C2 C3 C5 C/D C/D C3 BIV9 CTV9 I/O
INPUT SETPOINT(S)
Manual Retransfer Manual Retransfer, Preferred Source
Enable Manual Retransfer Manual Retransfer
Preferred Source Selector Preferred Source
Emergency Inhibit Preferred Source
Go to Emergency Preferred Source
Secondary Operating Mode, # of Generators, Preferred Source
Engine Test Mode Select Engine/PE Test Mode