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com munication connection, noise on the LEN bus, wiring error, or a
configuration error. Verify VFD conf igurations are se t per t he latest
literature.
Fault F601 – IDF VFD UNEXPECTED
This fault occurs when the indoor fan VFD informs the SystemVu
control that it has an active fault. This will cause a unit shutdown,
and will automatically reset when the VFD fault is cleared but
likely will require a manual reset to reset the VFD. Refer to the
VFD section or literature for details on the specific VFD fault.
Verify VFD configurations are set per the latest literature.
Fault F602 – IDF VFD LOCKOUT
This fault occurs when the indoor fan VFD informs the SystemVu
control that it has an active lockout fault. This will cause a unit
shutdown, and requires a power cycle to reset the VFD. Refer to
the VFD section or literature for details on the specific VFD fault.
Verify VFD configurations are set per the latest literature.
Alert A60 3 – IDF VFD IN HAND
This alert occurs when the indoor fan VFD informs the SystemVu
control that it is no longer in auto control and in either hand or off
mode. This can only be done with the accessory VFD keypad. This
will automatically reset when the VFD is placed back into auto
mode for the VFD keypad. Refer to the VFD section or literature
for details on the specific VFD fault. Verify VFD configurations
are set per the latest literature.
Fault F604 – IDF VFD IN HAND
This fault occurs when the indoor fan VFD informs the SystemVu
control that it is no longer in auto control and in either hand or off
mode. This can only be done with the accessory VFD keypad. This
will cause a unit shutdown, and will automatically reset when the
VFD is placed back into auto mode for the VFD keypad. Refer to
the VFD section or literature for details on the specific VFD fault.
Verify VFD configurations are set per the latest literature.
Alert A60 5 – IDF VFD THERMAL WARNING
This fault occurs when the indoor fan VFD informs the SystemVu
control that it has an active warning. This will cause an IDF speed
reduction of 10%, and will automatically reset when the VFD alert
is cleared. Refer to the VFD section or literature for details on the
specific VFD fault. Verify VFD configurations are set per the latest
literature.
Alert A60 6 – IDF VFD VOLTAGE WARNING
See alert A605
Alert A60 7 – IDF VFD CURRENT LIMIT
See alert A605
Alert A60 8 – IDF VFD WARNING
See alert A605
Fault F611 – IDF VFD EARTH FAULT
See fault F601
Fault F612 – IDF VFD CTLWORD LOSS
See fault F601
Fault F613 – IDF VFD OVER CURRENT
See fault F601
Fault F614 – IDF VFD MOTOR OVER TEMP
See fault F601
Fault F615 – IDF VFD OVERLOAD
See fault F601
Fault F616 – IDF VFD UNDER VOLTAGE
See fault F601
Fault F617 – IDF VFD OVER VOLTAGE
See fault F601
Fault F618 – IDF VFD SHORT CIRCUIT
See fault F601
Fault F619 – IDF VFD MAIN PHASE LOSS
See fault F601
Fault F620 – IDF VFD PHASE U LOSS
See fault F601
Fault F621 – IDF VFD PHASE V LOSS
See fault F601
Fault F622 – IDF VFD PHASE W LOSS
See fault F601
Fault F623 – IDF VFD CONTROL VOLTAGE
See fault F601
Fault F624 – IDF VFD SUPPLY VDD
See fault F601
Alert A7 00 – ECON NOT MODULATING
This alert occurs when the economizer feedback is enabled and the
actual speed does reach the commanded speed in the economizer
travel time configuration value. This alert will automatically reset
when the actual position does reach the commanded position. This
is usually caused by installation of the wrong actuator, no
economizer gear motion, or actuator direction control switch
(CCW, CW) wrong. Check damper blades, gears, and actuator.
This alert will usually be accompanied by another descriptive
informational alert.
Alert A70 1 – ECON STUCK CLOSED
See alert A700
Alert A70 2 – ECON STUCK OPEN
See alert A700
Alert A70 3 – IDF MECH DISCONNECTED
This alert occurs when the Alert A700 is not active yet the control
determines that the economizer changes are not aligning with the
temperature changes. This will require a manual reset to ensure the
economizer is inspected. This is usually caused by the actuator not
properly secured to the damper shaft.
Alert A7 10 – ECON NOT COOLING
See alert A700
Alert A711 – ECON IMPROPER COOLING
See alert A700
Alert A71 2 – EXCESSIVE OUTDOOR AIR
See alert A700
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