Eaton Cutler-Hammer RTC-50 Manuel D'instructions 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-
mal to Emergency setting of either 20 seconds or 50 seconds.
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
Time Delay Normal to Emergency
Time Delay Emergency to Normal
Time Delay Emergency Fail Timer
Nominal Frequency
Nominal Voltage
Utility Undervoltage Dropout
Generator Undervoltage Dropout
Utility Undervoltage Pickup
Generator Undervoltage Pickup
IB00405004E-70-8664
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RANGE
20 or 50 seconds
10 seconds
6 seconds
50 or 60 Hz
240 Vac
70% of 240 Vac Nominal Voltage
70% of 240 Vac Nominal Voltage
80% of 240 Vac Nominal Voltage
80% of 240 Vac Nominal Voltage
For more information visit: www.eaton.com
Effective: June 2007
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
an operating frequency of either 50 or 60 hertz.
FACTORY DEFAULT
20 seconds
10 seconds
6 seconds
60 Hz
240 Vac
70% of 240 Vac Nominal Voltage
70% of 240 Vac Nominal Voltage
80% of 240 Vac Nominal Voltage
80% of 240 Vac Nominal Voltage
Instructional Booklet
Page 7
FIXED/JUMPER
Jumper-selectable
Fixed setting
Fixed setting
Jumper-selectable
Fixed setting
Fixed setting
Fixed setting
Fixed setting
Fixed setting