ZF MM9000 User Manual

260 EN 3340.758.003a - 2014-11
APPENDIX B - QFA & DVTP
ENG-127 Rev A.1 02/12 Page 260
ENG-127 9000 Series Micro/ClearCommand Servo Throttle - Servo Clutch QFA & DVTP
Propulsion engine control systems.
a A vessel must have two independent means of controlling each propulsion engine. Control
must be provided for the engine speed, direction of shaft rotation, and engine shutdown.
1. One of the means may be the ability to readily disconnect the remote engine control linkage
to permit local operation.
2. A multiple engine vessel with independent remote propulsion control for each engine need
not have a second means of controlling each engine.
b In addition to the requirements of paragraph (a), a vessel must have a reliable means for
shutting down a propulsion engine, at the main pilothouse control station, which is
independent of the engine's speed control.
c A propulsion engine control system, including pilothouse control, must be designed so that a
loss of power to the control system does not result in an increase in shaft speed or propeller
pitch.
The ZF Marine Propulsion Systems Miramar MicroCommander/ClearCommand 9000 Series (servo throttle,
servo clutch version) marine engine controls offer single lever control of speed and direction. Each
enclosure houses an independent Control Processor and requires separate power supplies. The system
operates on 12 or 24VDC power and can have up to five remote stations depending on the application.
The system sequences the operation of speed and shift in order to prevent an inexperienced operator from
mishandling the engine or transmission.
A requirement of the ZF Marine Propulsion Systems Miramar MicroCommander/ClearCommand system is
that there be an engine ’STOP’ button at each remote station.
A standard feature is an alarm contact (normally open) to interface with the main alarm system of the
vessel. This switch will open and activate the alarm system with a power loss or CPU failure. In addition,
ZF Marine Propulsion Systems Miramar provides audible tones at the Control Head locations to indicate
system faults.
ITEM
NUMBER
FAILED
COMPONENT
ALARM
STATUS
INITIAL
RESULT
FINAL
OUTCOME
1
ZF Marine Propulsion
Systems Miramar
Control Head
Audible Tone Will Sound
At Control Head
Throttle Resets To Idle
No Increase In Engine
Rpm
Clutch Shifts To Neutral
No Increase In Shaft
Speed
2
Loss Of Power Supply Alarm Circuit Will Open
Throttle Remains At Last
Commanded Position
No Increase In Engine
Rpm
Clutch Remains At Last
Commanded Position
No Increase In Shaft
Speed
3
ZF Marine Propulsion
Systems Miramar
Throttle Feedback
Potentiometer
Audible Tone Will Sound
At Control Head
Throttle Resets To Idle
No Increase In Engine
Rpm
Clutch Remains At Last
Commanded Position
No Increase In Shaft
Speed
4
ZF Marine Propulsion
Systems Miramar Clutch
Feedback Potentiometer
Audible Tone Will Sound
At Control Head
Throttle Resets To Idle
No Increase In Engine
Rpm
Clutch Remains At Last
Commanded Position
No Increase In Shaft
Speed

ZF MM9000 Specifications

General

Brand	ZF
Model	MM9000
Category	Computer Hardware
Language	English