Eaton Electrical RTC-50 Manual Do Utilizador
IB00405004E-70-8664
For more information visit: www.eaton.com
Instructional Booklet
Effective: June 2007
Page 7
Instruction Manual for the Eaton RTC-50
Automatic Transfer Switch Controller
SECTION 4: PROGRAMMING
4.1 Introduction
The RTC-50 controller is programmable via the two programming
jumpers shown in Figure 2.
The TDNE jumper enables the end-user to select a Time Delay Nor-
The TDNE jumper enables the end-user to select a Time Delay Nor-
mal to Emergency setting of either 20 seconds or 50 seconds.
TDNE is a time delay that starts timing when the Generator source
becomes available either after the Utility becomes unavailable or
after the Go To Generator input is activated. The 50 second set-
ting may be used to allow for a longer warm-up period of the Gen-
erator.
The FREQ jumper enables the end-user to program the RTC-50 for
The FREQ jumper enables the end-user to program the RTC-50 for
an operating frequency of either 50 or 60 hertz.
Figure 2. RTC-50 Programming Jumpers.
Table 2 is a summary of the Fixed and Jumper-selectable settings that are available in the RTC-50.
Table 2. Fixed and Jumper-Selectable Settings
DESCRIPTION
RANGE
FACTORY DEFAULT
FIXED/JUMPER
Time Delay Normal to Emergency
20 or 50 seconds
20 seconds
Jumper-selectable
Time Delay Emergency to Normal
10 seconds
10 seconds Fixed
setting
Time Delay Emergency Fail Timer
6 seconds
6 seconds
Fixed setting
Nominal Frequency
50 or 60 Hz
60 Hz
Jumper-selectable
Nominal Voltage
240 Vac
240 Vac
Fixed setting
Utility Undervoltage Dropout
70% of 240 Vac Nominal Voltage
70% of 240 Vac Nominal Voltage
Fixed setting
Generator Undervoltage Dropout
70% of 240 Vac Nominal Voltage
70% of 240 Vac Nominal Voltage
Fixed setting
Utility Undervoltage Pickup
80% of 240 Vac Nominal Voltage
80% of 240 Vac Nominal Voltage
Fixed setting
Generator Undervoltage Pickup
80% of 240 Vac Nominal Voltage
80% of 240 Vac Nominal Voltage
Fixed setting