SMT8_4 TECHNICAL MANUAL

Perfect Power Online Manuals.

 

Support for your SMT8 V4 Unit.

SETPOINT

The SMT8_4 has a very powerful set point control feature, which allows the activation of relays. The relays can control more powerful devices such as lamps, motors, solenoids, pumps and fans.

SMT8V4 Piggy-Back Unit - F5 - Setpoints

 

SETPOINT USAGE

 

The unit has 3 output pins, each capable of driving a relay/solenoid of 1A. For details of the SETPOINT operation and setup see: LETRIPP II SOFTWARE USER GUIDE.

 

SMT8V4 Piggy-Back Unit - Example of a 4 Pin Relay

 

SETPOINTS

 

The SETPOINTS are evaluated as follows:

SMT8V4 Piggy-Back Unit - F5 - Setpoints

 

LIMIT EVALUATION:
This check compares the specified input with a settable limit (High/Low) and reports the state back. A TRUE condition is required to proceed. An example of this would be a limit of 3000 RPM and the engine exceeds 3000RPM the condition would be true because the limit is set to ‘HIGH’.

 


FUNCTION EVALUATION:

This check has three options:
NONE: No further checking is performed, and the limit result is copied.
AND: The true LOGICAL ‘AND’ evaluation is performed with any other function.
OR: The true LOGICAL ‘OR” evaluation is performed with any other function.
A TRUE condition is required to proceed.
The MAP SWITCHING feature is attached here! See: MAP SWITCHING


WIRE EVALUATION:

If both of the above conditions are TRUE, then an output is activated when a WIRE is specified.


The result of the FUNCTION EVALUATION can be used to switch the operating map A/B. See: MAP SWITCHING for more details. The hard cut and soft cut options are used in the Protection map (SHIFT F10)


The Soft/Hard Cut options are disabled.

 

 

ASSOCIATED PINS

 

Relay drive #1 Pin 7 of the 10-pin connector
Relay drive #2 Pin 8 of the 10-pin connector
Relay drive #3 Pin 6 of the 10-pin connector