February 2022
Installation, Operation and Maintenance Manual
VCIOM-15345-EN Rev. 1
68
Customizing Biffi EHO
Section 8: Customizing Biffi EHO
Table 29.
Configuration Table (17)
Menu Name
Menu
Key
Default Action
MOTOR THERMAL ALARM
Alarm will activate when the thermostat within the windings of the motor
exceeds the recommended operating temperature. The motor will stop
running. Once the motor temperature returns to the recommended
operating temperature, the [ta] alarm will automatically clear.
Note: The Hydraulic Power Unit Fault Alarm[Ha] alarm will also activate
if the Biffi EHO has not moved to the desired position given to
the actuator. After the [ta] alarm is cleared, the unit will require an
additional movement command to clear the [Ha] alarm.
ta
Stay Put - ON/OFF
Continues stroke with
remainingpressure -
Modulating
EMERGENCY STOP ALARM
Alarm will activate if an optional emergency stop switch breaks
continuity between terminals 20 and 22.
EA
Stay Put
VALVE DRIFT ALARM
Alarm will activate when the Biffi EHO detects the valve has moved more
than the bandwidth setting configured in Posi- tion Control
Bandwidth [Pb]. The Biffi EHO will attempt to re-position the valve to the
original desired set position. If the Biffi EHO successfully positions itself
back to the original desired set position, the alarm will deactivate.
da
Go To Set Position
POWER MONITOR ALARM
Alarm will activate when the Biffi EHO loses power. Battery backup
is required for this alarm to activate during loss of power.
Pa
Go To Loss of Power
Position
LOST ANALOG INPUT ALARM
Alarm will activate when Biffi EHO is configured for analog control in Con
-
trol Mode [CO] Configuration 3 and the analog signal is lost. Enable Lost
Analog Input 1 Alarm[Ae] must be enabled to activate the Lost
Analog Input Alarm.
LA
Alarm Reports Only.
Action will be taken per
Lost Analog Input Action
[AL] configuration
INVALID ANALOG INPUT RANGE ALARM
Alarm will activate when the analog input signal is not within the
analog 4 - 20 mA input range. The Biffi EHO will accept analog
signals between 3.6 to 22 mA before giving the alarm.
iA
Stay Put
HYDRAULIC POWER UNIT FAULT ALARM
Alarm will activate when a movement command is given to the
Biffi EHO and the pressure and position of the Biffi EHO does not change
as expected within ten seconds.The alarm will also activate
when the motor does not operate as expected.
Ha
Stay Put
ACTUATOR FAIL ALARM
Alarm will activate when the motor thermal contact trips,
position encoder fails, or phase sequence is incorrect.
AF
Alarm Reports Only