Timpdon Electronics Tel 0161 -980 7804 Issue 2–October 2010
Web www.timpdon.co.uk
Operation
1Once programmed, as described below, simply select the required servo
end position, Set or Reset using the operating switch. The servo will
move to the opposite programmed position, at the programmed rotation
speed.
2If a bounce level is programmed for the current direction of travel then, as
soon as the programmed end position is reached the servo will reverse to
the bounce position at the same speed, reverse again and finally return to
the programmed end position at the same speed. This feature may be
used to realistically simulate bounce at end of travel of semaphore signal
arms or crossing gates and barriers. If you do not require bounce in either
direction of travel, program the relevant bounce level to zero bounce.
3Once the servo has reached its programmed end position, and after a
further 1 second delay, the sense output will switch to the opposite state.
For Set, the output will switch from +5V to 0V and, for Reset, from 0V to
+5V. If this output is connected to the switch input of another servo
controlled switch, the second unit will start a Set or Reset operation on
completion of the same operation of the first unit.
4Once the servo started has started moving towards either the Set or
Reset positions it can not be stopped or reversed until it has completed its
programmed travel, as described in 3and, optionally, a further ten
seconds have elapsed [See below].
5Note that, in normal operation, the LED indicator will be off, unless the
optional 10 second delay referred to in 4is enabled. In this case, the LED
will illuminate continuously during this period. Otherwise, the LED is used
in programming mode only.
