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Instruction Booklet
IB 70-8698
Instruction Manual for the Eaton RTC-100
Automatic Transfer Switch Controller
eaton Corporation
www.eaton.com
Effective December 2009
Section 4: programming
4.1 Introduction
The RTC-100 controller is programmable via the five programming
jumpers shown in Figure 2.
The TDNE jumper enables the end-user to select a Time Delay
Normal 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, after
the Transfer to Generator input is activated, or the Gentest is pro-
gramed. The 50 second setting may be used to allow for a longer
warm-up period of the Generator.
The FREQ jumper enables the end-user to program the RTC-100 for
an operating frequency of either 50 or 60 hertz.
Figure 2. Load Control Jumper – shown in the “OFF” position.
4.1.1 Load Control Jumper
Aside from the built in Active Load Control relays, the RTC-100 has
the ability to extend the loads that it can actively control. An exter-
nal load control board, RLC-100, can be utilized so that the RTC-100
can ensure that more loads have power available while at the same
time ensuring that the generator does NOT become overloaded.
This jumper controls the RTC-100’s ability to communicate with the
RLC-100 load control board. If an RLC-100 load control board is
used, the Load Control jumper MUST be placed in the “ON” state.
See Figure 2.
