Page 46 of 92
Chapter: 4. Installation
Log Pulse Outputs
Pulse output terminals are as follows:
• Each group of pulse outputs are galvanically separated.
• All pulse outputs are opto couplers.
• The pulse rates and output modes are programmable in “Screen status, Menu 4, pulse settings.” on
page 25.
• Possible pulse rates are 10/100/200/400/1000 pulses per nautical mile. (1000 pulses Ch 3 only).
• Possible output modes are ForAftWT, LateralWT, ResultWT, ForAftBT, LateralBT, ResultBT.
Pin nr Name Description
J100 - 21 OPT3DC Optocoupler 3, direction collector.
J100 - 20 OPT3VC Optocoupler 3, velocity collector.
J100 - 19 OPT3EE Optocoupler 3, common emitters.
J100 - 18 OPT2DC Optocoupler 2, direction collector.
J100 - 17 OPT2VC Optocoupler 2, velocity collector.
J100 - 16 OPT2EE Optocoupler 2, common emitters.
J100 - 15 OPTVE Optocoupler 1, velocity emitter. Pulses ch 1, or speed limit function when activated.
J100 - 14 OPTVC Optocoupler 1, velocity collector. Pulses ch 1, or speed limit function when activated.
Pulse output is default set to water track in Fore/Aft direction (ForAftWT). For special purposes as
ship maintenance or measuring of travelled distance in rivers, the pulse output may be set to give other
types of speed such as ResultWT, ForAftBT or ResultBT. This option is protected and can be activated
by using the hidden button as described in the chapter for calibration. See “Enabling of calibration” on
page 52.
Note: If the high speed limit (Sp(ee)d limit ▲) and low speed limit (Sp(ee)d limit ▼) are both equal =
0 kts, the optocupler output ch 1 (OPTVC and OPTVE) is operating as the standard speed pulse output.
If the speed limit values are <> (dierent from) 0 kts, the optocoupler output ch 1 is designated as
speed limit function. (See illustration on screen status on previous page).
Speed Limit function
When the speed limit function is activated, (not 0 in both Sp(ee)d limit ▲and Sp(ee)d limit ▼ (see
status screen)) pins 14 and 15 will be designated this warning. This warning is typically used to limit
the systems steerage at higher speeds, or to block incorrect usage of equipment that should not be
used at high speeds (stabilisers or winches). Upper (▲) and lower (▼) limits can be set on screen
status menu 6 to provide a window of operation for this function. When activated, Pulse 1 will not be
available.
Note: Optocoupler output OPTVE and OPTVC are (if activated) dedicated to the speed limit function.
Switch is closed, if the speed is inside the limits, and open if the speed is outside the limits. If closed
contact is required, it must be connected as shown in diagram 4.6, see “Examples of optocoupler I/O
connections” on page 44.
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