71
error
probable cause
Measure
• Check Parameter RAMP 1/2 [0215 /
0220] (too short) and BOOST [0265]
(too low)
oVerload
Power limit of the HYDROVAR
• Check motor connection, cable and
error 12
is exceeded
power supply
• Pump blocked
• Motor turns in the wrong direction
• MAX. FREQUENCY [0245] too high
• Parameter RAMP 2 [0220] too fast
oVerVoltaGe
DC voltage too high
• Power supply too high
error 13
• Voltage peaks too high (Solution: Line
filters)
inVert. oVerHeat
Excessive temperature inside
• Improper cooling
error 14
the HYDROVAR
• Contamination of the motor vents
• Ambient temperature too high
An external protective device
• Close X1/PTC if there is no external
connected to terminal X1/PTC
protective device connected.
tHerMo Mot/ext
has released (e.g. PTC which is
• Close external on/off switch if
error 15
connected has reached its
connected to these terminals.
release temperature).
• For detailed information, see
chapter 8.4.3.
• Check power supply under full load.
pHaseloss
One phase of the power supply
– Check if phase failure at the input.
error 16
has been lost.
• Check circuit breakers
• Visual inspection of points at the
input terminals.
• Supply voltage too low
underVoltaGe
DC voltage
• Phase failure at the input
• Asymmetry of the phase imbalance
• Check if the addressing of Basic
Inverter [DIP SW.] has been done
The communication between
correctly.
coMM lost
the Power Unit and the control
• Check if each unit has its own pump
card is lost.
address.
• Check if the connection from
control card to the power unit is
made properly (ribbon cable).
• Cut off power supply for > 60 seconds.
reset:
• Manual reset by closing external ON/OFF (Terminals X3/7-8)
• Manual reset by pressing and simultaneously for about 5 seconds
• Auto-reset possible if ERROR-RESET [0615] is set to ON
Failure MessaGes
