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Failure Messages

Section 10

Note

If the HYDROVAR is stopped by an error (warning), the HYDROVAR and the motor

remain under voltage. Before any work is carried out on the electrical or mechanical

part of the system, the HYDROVAR must be disconnected from power supply for at

least 5 minutes.

Difference between warnings and errors:

• Warnings are shown on the display and indicated by the red failure LED. If a warning is active and the

cause is not remedied within 20 seconds an error will be shown and the HYDROVAR stops. Note: Not

all warnings will result in an error.

• Errors are indicated on the HYDROVAR display and by the red failure LED on the control panel. In case

of an error the connected motor is stopped immediately. All errors are shown in plain text and saved in

the error memory including date and time when the failure occurred.

The following information describes the errors which can occur on the HYDROVAR (on the Master/Single

and the Basic Inverter). Additionally the possible countermeasures to reset these errors are described.

• Please note that an automatic error-reset can be activated in SUBMENU ERRORS to reset an occurred

failure automatically for 5 times. For more information about this function see parameter ERROR-RESET

[0615].

• All error signals and warnings can be indicated via the two status-relays on terminals X5/1-2-3

or X5/4-5-6 depending on the conﬁguration. (How to program see parameter CONF REL 1 [0715] and

CONF REL 2 [0720].)

10.1 Basic Inverter

The Basic Hydrovar (power unit only), may indicate the following errors by the red LED:

Red LED Code Error Probable Cause

1 blink UNDERVOLTAGE DC is too low

2 blinks

OVERCURRENT or Current rise at the output too high or

OVERLOAD current limit is reached

3 blinks INVERTER OVERHEAT Excessive temperature inside the HYDROVAR

4 blinks OVERVOLTAGE Excessive DC voltage

5 blinks CODE ERROR Internal error

6 blinks

MOTOR OVERHEAT PTC in the conduit box has reached its release

EXTERNAL CONTACT temperature or external contact is open

ITT Hydrovar User Manual

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