Alarms; Alarm Description; Alarm Properties - LOVATO ELECTRIC DCRG8 Manual Operativo

ALARMS

– When an alarm is generated, the display will show an alarm icon, the code and the description of the alarm in the language selected.
– If the navigation keys in the pages are pressed, the pop-up window showing the alarm indications will momentarily disappear and reappear again after a few
seconds.
– The red LED near the alarm icon on the front panel is flashing when an alarm is active.
– If enabled, the local and remote alarm buzzers are activated.
– Alarms can be cleared by pressing .
– If the alarm cannot be cleared, the condition that generated the alarm must still be solved.
– In the case of one or more alarms, the DCRG8 performance depends on the property settings of the active alarms.

ALARM DESCRIPTION

CODE ALARM
A01 Undercompensation
A02 Overcompensation
A03 Current too low
A04 Current too high
A05 Voltage too low
A06 Voltage too high
A07 Panel temperature too high
A08 Capacitor current overload
A09 No-Voltage release
A10 Step xx failure
A11 Harmonic protection module no. n
Current too high
A12 Harmonic protection module no. n
I -THD too high
A13 Harmonic protection module no. n
5th Harm too high
A14 Harmonic protection module no. n
7th Harm too high
A15 Harmonic protection module no. n
11th Harm too high
A16 Harmonic protection module no. n
13th Harm too high
A17 Harmonic protection module no. n
Temperature 1 too high
A18 Harmonic protection module no. n
Temperature 2 too high
A19 Slave xx link error
UAx User alarm x (x=1..8)
A20 Maintenance interval 1 elapsed
A21 Maintenance interval 2 elapsed
A22 Maintenance interval 3 elapsed

ALARM PROPERTIES

Various properties can be assigned to each alarm, including user alarms (User Alarms, UAx):
– Enabled - General enabling of the alarm. If the alarm is not enabled, it is not considered,
– Retentive – Memory remains latched even if the cause of the alarm has been eliminated.
– Operating mode – Operating modes in which the alarm is enabled.
– Global alarm 1 -2 -3 - Activates the output assigned to this function.
– Step disconnection mode – Defines whether and how the capacitor steps must be disconnected when the alarm is present. OFF = no disconnection;
SLOW = gradual disconnection; FAST = Immediate disconnection.
– Slave disconnection mode – Defines, for Master-Slave applications when this alarm arises, if the disconnection is extended to all the steps of the system
(GENERAL) or only to the output of the interested panel (LOCAL).
– Inhibition - The alarm can be temporarily disabled by activating an input that can be programmed with the Inhibit function.
– Modem call – The alarm will be signalled remotely by sending a modem call under the conditions and modality defined in modem parameters.
– No LCD - The alarm is managed normally, but not shown on the display.
– Delay time – Time delay in minutes or seconds before the alarm is generated.
DESCRIPTION
All the available steps are connected but the cosphi is still more inductive than the setpoint.
All the steps are disconnected but the cosphi is still more capacitive than the setpoint.
The current flowing in the current inputs is lower than minimum value of measurement
range.
This condition can occur normally if the plant has no load.
The current flowing in the current inputs is higher than the maximum of measurement
range.
The measured voltage is lower than the threshold set with P17.14.
The measured voltage is higher than the threshold set with P17.13.
The panel temperature is higher than threshold set with P17.06.
The calculated capacitor current overload is higher than threshold set with P17.08 and/or
P17.09.
A no-voltage release has occurred on the line voltage inputs for more than 8ms.
The residual power percentage of the step xx is lower than minimum threshold set with
P17.12.
The RMS current measured by harmonic protection module n is higher than threshold set
with P18.n.06.
The current THD measured by harmonic protection module n is higher than threshold set
with P18.n.07.
The component percentage of 5th harmonic content measured by harmonic protection
module n is higher than threshold set with P18.n.08.
The component percentage of 7th harmonic content measured by harmonic protection
module n is higher than threshold set with P18.n.09.
The component percentage of 11th harmonic content measured by harmonic protection
module n is higher than threshold set with P18.n.10.
The component percentage of 13th harmonic content measured by harmonic protection
module n is higher than threshold set with P18.n.11.
The measurement of temperature 1 input on harmonic protection module n is higher than
threshold set with P18.n.12.
The measurement of temperature 2 input on harmonic protection module n is higher
than threshold set with P18.n.13.
The slave no. x does not communicate with the master. Problem with the RS485 wiring.
User-defined alarm, as specified by parameters of menu M25.
The maintenance 1 interval hours are elapsed. After maintenance service, reset counter
with command C16.
The maintenance 2 interval hours are elapsed. After maintenance service, reset counter
with command C17.
The maintenance 3 interval hours are elapsed. After maintenance service, reset counter
with command C18.
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