MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15
Thomson Technology
57
9.3.25.WARMUP DELAY
The WARMUP Delay programming menu appears when the Gen Ready To Load
programmable output is selected as is typically used in an AMF application. Set
to the desired time in seconds, which the generator requires to effectively
“warmup” before accepting load. This is typically set for 3 seconds. The
Warmup Delay is initiated once the generator output rises above programmed
voltage and frequency limits (per the analog programming menus). Refer to
Section 9.4
.
for further details on this timing function.
9.3.26.NEUTRAL DELAY
The Neutral Delay programming menu appears when the Utility Ready To Load
programmable output is selected as is typically used in an AMF application. The
Neutral Delay timer is initiated when transferring between the available sources.
When transferring from the utility supply to the generator supply, the Neutral
Delay timer will start when The Utility Ready To Load output de-energizes. Once
the Neutral Delay time period expires, The Generator Ready To Load output will
then be energized. The similar sequence will occur when transfer in the opposite
direction. The purpose of the Neutral Delay timer is to prevent out of phase
transfers, which may be caused by a fast transfer and the two sources of supply
are out of synchronism. The Neutral Delay timer ensures the load voltages
decay before the transfer is initiated.
Set to the desired time in seconds. The Neutral Delay timer is typically set for 3
seconds. Refer to
Section 9.4
for further details on this timing function.
NOTE:
The Neutral Delay feature is only effective when an
electrically held “contactor-type” transfer switch is
connected. Contact Thomson Technology for
further application information on use with other
types of transfer switch mechanisms.
9.3.27.RETURN DELAY
The Return Delay programming menu appears when the Utility Ready To Load
programmable output is selected as is typically used in an AMF application. The
Return Delay is initiated once the remote start signal is removed, signaling that
