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Instruction Booklet
Page 32 Effective: August 2010
ATC-300 2-Position Contactor
Based Transfer Switch
Table 6. Setpoint Possibilities
SETPOINT SETPOINT UNITS DESCRIPTION RANGE FACTORY
DEFAULT
New Password Four Digits Set New Password 0000 to 9999 0300
TDES Minutes: Seconds Time Delay Engine Start 0 to 120 seconds 0:03
TDNE Minutes: Seconds Time Delay Normal to Emergency 0 to 1800 seconds 0:00
TDEN Minutes: Seconds Time Delay Emergency to Normal 0 to 1800 seconds 5:00
TDEC Minutes: Seconds Time Delay Engine Cool-off 0 to 1800 seconds 5:00
NOM FREQ Hertz Nominal Frequency 50 or 60 Hz As ordered
NOM VOLTS Volts Nominal Voltage 120 to 600 volts As ordered
S1 UV DROP Volts Source 1 Undervoltage Dropout Range:
Contactor Style ATS (2-position)
78 to 97% of Nominal System Voltage
85%
S2 UV DROP Volts Source 2 Undervoltage Dropout Range:
Contactor Style ATS (2-position)
78 to 97% of Nominal System Voltage
85%
S1 UV PICK Volts Source 1 Undervoltage Pickup Range:
Contactor Style ATS (2-position)
(Dropout +2%) to 99% of Nominal System Voltage
90%
S2 UV PICK Volts Source 2 Undervoltage Pickup Range:
Contactor Style ATS (2-position)
(Dropout +2%) to 99% of Nominal System Voltage
90%
S1 OV DROP Volts Source 1 Overvoltage Dropout Range:
Contactor Style ATS (2-position)
105 to 110% of Nominal System Voltage
110%
S2 OV DROP Volts Source 2 Overvoltage Dropout Range:
Contactor Style ATS (2-position)
105 to 110% of Nominal System Voltage
110%
S1 OV PICK Volts Source 1 Overvoltage Pickup Range:
Contactor Style ATS (2-position)
103% to (Dropout -2%) of Nominal System Voltage
105%
S2 OV PICK Volts Source 2 Overvoltage Pickup Range:
Contactor Style ATS (2-position)
103% to (Dropout -2%) of Nominal System Voltage
105%
S1 UF DROP Hertz Source 1 Underfrequency Dropout Range:
Contactor Style ATS (2-position)
90 to 97% of Nominal System Frequency
90%
S2 UF DROP Hertz Source 2 Underfrequency Dropout Range:
Contactor Style ATS (2-position)
90 to 97% of Nominal System Frequency
90%
S1 UF PICK Hertz Source 1 Underfrequency Pickup Range:
Contactor Style ATS (2-position)
(Dropout +1 Hz) to 99% of Nominal System Frequency
95%
S2 UF PICK Hertz Source 2 Underfrequency Pickup Range:
Contactor Style ATS (2-position)
(Dropout +1 Hz) to 99% of Nominal System Frequency
95%
S1 OF DROP Hertz Source 1 Overfrequency Dropout Range:
Contactor Style ATS (2-position)
103 to 105% of Nominal System Frequency
105%
S2 OF DROP Hertz Source 2 Overfrequency Dropout Range:
Contactor Style ATS (2-position)
103 to 105% of Nominal System Frequency
105%
S1 OF PICK Hertz Source 1 Overfrequency Pickup Range:
Contactor Style ATS (2-position)
101% to (Dropout -1 Hz) of Nominal System Frequency
102%
S2 OF PICK Hertz Source 2 Overfrequency Pickup Range:
Contactor Style ATS (2-position)
101% to (Dropout -1 Hz) of Nominal System Frequency
102%
PLANT EXER Days Plant Exerciser Programming OFF, DAILY, 7-DAY, 14-DAY or 28 DAY OFF
PE LOAD XFR Plant Exerciser Load Transfer 0 or 1 (1 = yes) 0
PE DAY Days Plant Exerciser Day of the Week 1 SUN, 2 MON, 3 TUE, 4 WED, 5 THU, 6 FRI or 7 SAT
PE HOUR Hours Plant Exerciser Hour 0 to 23 0
PE MINUTE Minutes Plant Exerciser Minute 0 to 59 0
TEST MODE Test Mode 0, 1 or 2 (0 = No Load Engine Test, 1 = Load Engine Test, 2 =
Disabled)
0
TER Hours: Minutes Engine run test time 0 min to 600 min 5:00
TPRE Minutes: Seconds Pretransfer delay timer 0 sec to 120 sec 0:00
PHASES Three phase or single phase 1 or 3 AS ORDERED
VOLT UNBAL Volts Voltage Unbalanced 0 or 1 (1 = Enabled) 1
UNBAL DROP % Percent Percent for Unbalanced Voltage Dropout 5 to 20% of Phase to Phase Voltage Unbalance 20%
UNBAL PICK % Percent Percent for Unbalanced Voltage Pickup Dropout minus (UNBAL DROP % -2) to 3% 10%
UNBAL DELAY Seconds Unbalanced Delay Timer 10 to 30 0:20
TDEF Seconds Time Delay Emergency Fail Timer 0 sec to 6 sec 6
IN-PHASE Hertz In-phase Transition 0 or 1 (1=Enabled) 1
IP FREQ DIFF Hertz In-phase Transition Frequency Difference 0.0 Hz to 3.0 Hz 1
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