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Instructional Booklet
Effective: March 2014 Page 43
ATC-300 Breaker Based Transfer Switch
The following setpoints are programmable if the corresponding feature is programmed.
Table 7. Programmable Features and Setpoints
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:
Breaker/Switch Style ATS 50 to 97% of Nominal System Voltage 80%
S2 UV DROP Volts Source 2 Undervoltage Dropout Range:
Breaker/Switch Style ATS 50 to 97% of Nominal System Voltage 80%
S1 UV PICK Volts Source 1 Undervoltage Pickup Range:
Breaker/Switch Style ATS (Dropout +2%) to 99% of Nominal System Voltage 90%
S2 UV PICK Volts Source 2 Undervoltage Pickup Range:
Breaker/Switch Style ATS (Dropout +2%) to 99% of Nominal System Voltage 90%
S1 OV DROP Volts Source 1 Overvoltage Dropout Range:
Breaker/Switch Style ATS 105 to 120% of Nominal System Voltage 115%
S2 OV DROP Volts Source 2 Overvoltage Dropout Range:
Breaker/Switch Style ATS 105 to 120% of Nominal System Voltage 115%
S1 OV PICK Volts Source 1 Overvoltage Pickup Range:
Breaker/Switch Style ATS 103% to (Dropout -2%) of Nominal System Voltage 110%
S2 OV PICK Volts Source 2 Overvoltage Pickup Range:
Breaker/Switch Style ATS 103% to (Dropout -2%) of Nominal System Voltage 110%
S1 UF DROP Hertz Source 1 Underfrequency Dropout Range:
Breaker/Switch Style ATS 90 to 97% of Nominal System Frequency 94%
S2 UF DROP Hertz Source 2 Underfrequency Dropout Range:
Breaker/Switch Style ATS 90 to 97% of Nominal System Frequency 94%
S1 UF PICK Hertz Source 1 Underfrequency Pickup Range:
Breaker/Switch Style ATS (Dropout +1 Hz) to 99% of Nominal System Frequency 96%
S2 UF PICK Hertz Source 2 Underfrequency Pickup Range:
Breaker/Switch Style ATS (Dropout +1 Hz) to 99% of Nominal System Frequency 96%
S1 OF DROP Hertz Source 1 Overfrequency Dropout Range:
Breaker/Switch Style ATS 103 to 110% of Nominal System Frequency 106%
S2 OF DROP Hertz Source 2 Overfrequency Dropout Range:
Breaker/Switch Style ATS 103 to 110% of Nominal System Frequency 106%
S1 OF PICK Hertz Source 1 Overfrequency Pickup Range:
Breaker/Switch Style ATS 101% to (Dropout -1 Hz) of Nominal System Frequency 104%
S2 OF PICK Hertz Source 2 Overfrequency Pickup Range:
Breaker/Switch Style ATS 101% to (Dropout -1 Hz) of Nominal System Frequency 104%
TDN Minutes: Seconds Time Delay Neutral 0 to 120 seconds 0:00
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%
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