
TimpdonMarine Tel 0161 -980 8054 Issue 1–June 2011
Web www.timpdon.co.uk
EMail marine@timpdon.co.uk
3The servo output pulse widths corresponding to the maximum and
minimum joystick positions [set and reset] are user programmable, as is
the rotation rate
of the servo between these positions. The available range
of servo output pulse widths is 0.6 ms to 2.4 ms.
4On power up, provided that the transmitter is on, the MRSS4 will auto zero
within an input pulse width range of 1.3 to 1.7 ms. The maximum and
minimum switch levels will then be set at +/-0.2 ms around the auto zero
position. The last valid auto zero setting is retained in non-volatile memory.
If the transmitter is off at power up, or the pulse widths are outside the
permitted limits for auto zero, the unit will retain the last valid auto zero
level, if available, or set the zero position to 1.5 ms, if not.
Programming
Programming or re-
programming may be performed at any time, using push
button switches S1 and S2, with indication provided by theLED.
Programming is performed in three steps, in order –Servo Reset Position,
Servo Set Position and Servo Rotation Rate
The set and resetlimit positions of the servo may be set anywhere within
its operating range, subject to a limitation of RC pulse widths of 0.6 ms to
2.4ms, as described above.
Programming Procedure
Programming may be undertaken with the transmitter either on or off.
Press and hold both switches S1 and S2 together.
The LED will flash rapidly for about 5 seconds, and then go on
continuously.Then release both switches.
If you release either switch before the LED stops flashing, the unit
will remain in normal operation.
1You are now in Step 1 –Servo Reset Position
The LED will flash with single shortflashes, and the servo will move to
the current reset position.