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INSTALLATION  INSTRUCTIONS

M S D

 

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temperature reading from an external temperature sensor. Also, the selected input wire can be used 

to trigger a time counter, like a launch wire, and control the time of activation as well as the duration 

of the output. The state of the inputs and outputs can be observed in the monitor window in real time.

POWER GRID MODE

The Power module is connected to the Power Grid (PN7730) via the CAN connector.

In Power-Grid mode, the Power Module retains all the features available in Stand-Alone mode and 

expands the control and programmable features. In addition to the four input wires, the user can 

select the “launch wire” signal from the Power Grid as the activation source. Also, the output control 

can be enabled/disabled based on the engine speed (RPM) reading from the Power Grid.

In addition to providing expanded control over the outputs, Power Grid Mode utilizes the Power Grid 

data recorder.

Another feature the Power Grid adds to the Power Module is the ability to control ignition timing retard 

as a function of “Time From Activation”. Time from activation is the time elapsed since the activation 

of the selected Power Module input wire. A 2-D plot of “timing retard vs time from activation” is 

provided for this feature.

Note: 

For more information on the features and settings, please refer to the “SETTINGS” section below.

PROGRAMMABLE FEATURES

OUTPUT SETTINGS

These settings allows control over the behavior of each output. Each one of the four outputs has an 

“OUTPUT SETTINGS” sub-tab and is configured independently.

SETTINGS

Features, such as the frequency, current limit and activation source, can be configured under this tab.

Frequency: 

Signal frequency of the Solid state relay output in PWM mode only.

Current Limit: 

When the solid state output current exceeds the set value, the output will turn OFF until 

the next turn-on command. 

Note: 

Continuous load current over 20 Amps may overheat the 

driver that consequently will turn OFF to protect itself.

Temperature Control: 

 Sets the method that the external temperature sensor controls the 

corresponding output of the solid state relay.

 

Disable: 

The temperature sensor signal does not affect the output.

 

ON/OFF: 

The output will be ON when the sensor temperature is above the value in the 

“Temperature Setting” or OFF when the sensor temperature is below it. If  “AC Input” is used 

, the AC is ON the output will be ON irrespective of the sensor temperature.

 

PWM: 

The output will have a varying duty cycle between 50 and 100%, or 0% to control the 

temperature until it reaches the desired value. A value of 0% is valid only if “AC Input is OFF 

or not used. Otherwise, the minimum value is 50% duty cycle.

 

  Temperature Setting: 

The output state will change to maintain the value set here. For example 

in “ON/OFF” mode the output will be ON when the measured sensor temperature is above 

this setting and the output will turn OFF when the sensor temperature is below this setting. 

Note: when the “AC Input” is ON, the output will be ON regardless of the temperature.

 

  AC Input: 

Selects the wire that will indicate AC ON. When the AC is ON the output will be at 

least 50% ON in PWM mode or fully ON in ON/OFF mode. The “AC Input” setting is available 

only in “Temperature Control” mode. 

Wire Activation Source 1 - 4,: 

Determines which of the inputs must activate for the output to be ON. 

All non-disabled inputs except the Launch must be ON for the output to be ON. If the Launch 

is selected, the Launch mode must be OFF for the output to be ON.

Note:

 The inputs selected act as an AND function. Meaning: All the defined inputs must be ON at 

the same time to enable the output wire

 

Timer During Wire Disable: 

Determines the status of the Channel’s Timer while the output is 

Summary of Contents for Power Grid Power Module 77643

Page 1: ...Cable 1 Loctite 242 packet Optional Temperature Sensor PN 2934 WIRING FEATURES MAIN HARNESS 16 PIN A RED 12GA OUTPUT 1 B RED 20GA INPUT 1 C F NOT USED G ORANGE 20GA INPUT 2 H ORANGE 12GA OUTPUT 2 J PI...

Page 2: ...RY BEFORE INSTALLING TO TO BATTERY RED OUTPUT 1 12GA RED INPUT 1 20GA YELLOW OUTPUT 4 12GA YELLOW INPUT 4 20GA ORANGE OUTPUT 2 12GA ORANGE INPUT 2 20GA PINK OUTPUT 3 12GA PINK INPUT 3 20GA BROWN TEMP...

Page 3: ...lled The latest version of the MSDView Software can be downloaded from www msdperformance com SAVES AND TRANSFERS Changes to the Power Module via MSDView are made in real time You can create and save...

Page 4: ...output in PWM mode only Current Limit When the solid state output current exceeds the set value the output will turn OFF until the next turn on command Note Continuous load current over 20 Amps may o...

Page 5: ...Activation the output will deactivate when the engine speed drops below the Deactivation speed Hysteresis Note Each output within the Power Module can activate engine timing retard similar to the ste...

Page 6: ...Power module is connected to a Power Grid PN7730 DATA ACQUISITION The data acquisition system works in conjunction with the Power Grid PN7730 data recorder It allows the user to record input activati...

Page 7: ...1 Red duty cycle When selected as a digital output ON is 100 and OFF is 0 2 Orange Input Input 2 Orange status ON or OFF 2 Orange Output Duty Cycle Output 2 Orange duty cycle When selected as a digit...

Page 8: ...er issued to them before being returned To obtain an RMA number please contact MSD Customer Service at 1 888 MSD 7859 or visit our website at www msdperformance com rma to automatically obtain a numbe...

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