023-00354-Rev1.4 evc/epc
User
Manual
Copyright © High Country Tek, Inc. – 2013
20
evc/epc
Controller
With
SAE
J1939
Interface
Command & Error Settings
Analog Input Active
(On/Off) – Enables/Disables
the command analog input.
Analog Center Active
(On/Off)
When enabled, the “Pot Center Voltage” becomes the zero demand point. One coil is driven from 0%
to 100% on either side of the zero point
Coil A is driven from the center voltage to the max voltage and coil B is driven from the center voltage
to the min voltage
This setting is used in Dual Coil Valve Control only.
The
“
Coil Selection Active” switch is automatically
OFF
when the Center Active is “
ON
”.
Coil Selection Active
(pin 9, On/Off)
When “
ON
”, the state of the reverse input pin is used to determine which coil will be driven. i.e. When
the input is High, (+5V to Supply Volts) coil B is active and when Low (0V to 2.5V) coil A is active.
This feature allows the full command resolution on coil A and B. It is used in the applications that a
reciprocating action is triggered by a single high-low input.
Pot Center Error Detection at Initial Turn On
When set, the module verifies the analog input is in the center deadband range before enabling the
output(s)
after the initial power up.
Once the command is centered, the outputs will be enabled.
To use this feature, the Analog Center Active has to be “
ON
”.
This safety feature ensures that the system will NOT immediately go to the previous settings after
cycling the power.