Trebor REV6 - Manual (Page 27)

REV6 OPERATION / MAINTENANCE MANUAL 27 CONTENTS
5.1.2 Standalone Operation (Button Control Mode)

When applying power the system defaults into the “Button Control Mode” and goes into the
status
“OFF Button Control” according to Figure 23. Levitation is disabled and the display
indicates “OF”.

Levitation can be enabled by pressing the “UP” button for 1 second (display shortly indicates
“ON”) or by activating (typically 24V) the “ENABLE” pin on the “USER INTERFACE” connector
(see Table 8). The system goes then into the status
“ON Button Control” and is running at the
speed, which is stored in the EEPROM.

The speed can be changed by pressing accordingly the “UP” and “DOWN” buttons. As long as
the digits on the display are blinking, the “set speed” is shown. As soon as blinking stops the
actual speed is shown and the
“set speed” is stored in the EEPROM of the controller.

The system can be disabled by pressing the
“DOWN” button until 0 rpm is achieved. Pressing
further 1 second the “DOWN” button the system disables levitation and shows “OF” on the
display. The system can also be disabled by deactivating (0 V) the “ENABLE” pin on the “USER
INTERFACE” connector (see Table 7). Before disabling the system, the speed is automatically
reduced to 0 rpm and the impeller is properly touched down without grinding the wall.

In case of an error the “RESET” button (see Figure 20) can be used to restart the system or the
power can be switched off and on.

For error analysis, the codes described in Table 9 are displayed (blinking between “Er” and the
according code number).

If the system shall be enabled automatically, when power is applied the “ENABLE” pin on the
“USER INTERFACE” connector (see Table 7) has to be active (typically 24V). When switching
on the power the system is running with the stored speed.

For monitoring purposes, a digital output on the “USER INTERFACE” connector (see Table 7)
indicates the status of the system. When the impeller is rotating the digital output
“Status” turns
active.
The digital input
“ENABLE” is normally edge-triggered to allow control by digital input and buttons in
order to enable/disable systems simultaneously. An exception is, when the system is powered up or a
system reset occurs: than the system checks the level of the digital input and switches to the desired
state. Hence, on startup, a high level of the digital input
“ENABLE” is sufficient to switch on the system
and a transition from low to high is not required.
5.1.3 Extended Operation (Analog Control Mode)

In order to be able to control the pump with external signals, the mode “Analog Control Mode”
has to be set with the display buttons. Press the “UP” and “DOWN” buttons simultaneously for 5
seconds. The display should show the mode change by blinking between the stored speed
value and
“An”. The chosen mode is then stored in the EEPROM of the controller. After startup,
the system returns to the operation mode selected previously.

The system and levitation can be enabled/disabled with the digital input on the “USER
INTERFACE” connector (see Table 8). When disabling the running system the speed is
automatically reduced to 0 rpm and the impeller is properly touched down without grinding the
wall. The display is blinking between
“An” and ”OF”. Alternatively “UP” button is also able to
switch the system o. Pressing the “DOWN” button will switch the system off.

The speed can be set with an analog signal on the “USER INTERFACE” connector according to
Table 8. It is strongly recommended to use galvanic separated signal values.

For monitoring purposes, a digital output
“Status” on the “USER INTERFACE” connector (see
Table 8) indicates the status of the system. When the impeller is rotating the digital output
“Status” turns active.