Data Flow Systems TCU800, Быстрый старт, Страница: 16 / 25

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The LCD Screen and Status LED do not indicate that AC power has been removed. Even
if these indicators are not lit, you should assume that the TCU is still powered. To remove
power, you must turn off the external circuit breaker.
Connectorized Terminals
The TCU800’s four connectorized wire terminals (P1, P2, P3, and P4) allow the unit to be serviced or
replaced without rewiring the control panel. No user configuration straps or jumpers are required.
H-O-A Switches and LEDs
Three Hand-Off-Auto (H-O-A) switches on the TCU's front panel are provided to manually override the
TCU's automated control. They can be used to control the pumps connected to the unit. The H-O-A switches
are fail-safe, meaning they remain operational even if the TCU fails or loses power.
The home display screen indicates the status of each pump. Under normal operation, the display indicates
if the corresponding pump is on or off. The pump indicator flashes when a starter circuit fault is detected.
LCD Display and Touchscreen
The 5” TFT LCD touchscreen panel provides the interface for configuring the TCU, viewing and resetting
alarms, and analyzing status information.
Navigate through the TCU800 interface by swiping across the touchscreen either left or right. After swiping,
the screen will turn black and display the new screen in a moment. In order to configure the TCU800, tap
on the text and numbers in order to adjust their values. When you tap on a button in the interface it will
highlight that button.
Status LED
The STAT or Status LED indicates the current state of the unit. A slowly flashing STAT led means that the
unit is on and the pump logic is running without fault.
The Alarm LED is cleared when the alarm screen is exited and there are no active alarms. The Silence key
is used to silence the TCU’s own alarm horn and an external alarm horn if one has been connected.
Receive (RX Data) and Transmit (TX Data) LEDs
The RX and TX Data LEDs are part of the telemetry and service port interface and are provided to verify
the communications function. The RX Data LED strobes each time the TCU receives data; the TX Data
LED strobes each time the TCU transmits data.
USB Ports and Configuration
The TCU's front panel features two USB type-A ports that can be used for diagnostics and configuration
storage, and updating. A USB flash drive correctly formatted and loaded with the appropriate files will
allow easy transfer of pump configuration parameters from one TCU to another.
The TAC Pack TCU Configuration Connector or address card is NOT used with the TCU800. Instead, the
USB configuration stick will replace this method of setting the TCU’s station address.