LOVATO ELECTRIC DCRG8 Manual Operativo página 17

M18 – HARMONIC PROTECTION (HARn, n=1...4)
P18.n.01 CT primary
P18.n.02 CT secondary
P18.n.03 CT wiring
P18.n.04 Rated current
P18.n.05 CT positioning
P18.n.06 Current limit
P18.n.07 Current THD Limit
P18.n.08 5rd Harmonic current limit
P18.n.09 7th Harmonic current limit
P18.n.10 11th Harmonic current limit
P18.n.11 13th Harmonic current limit
P18.n.12 Temperature alarm threshold 1
P18.n.13 Temperature alarm threshold 2
Note: Parameters in this menu are referred to protections that are available only when using the harmonic protection module EXP1016.
P18.n.01 – P18.n.02 – CT primary and secondary values used for current measurement in power factor correction panel and connected to the harmonic
protection module.
P18.n.03 – Current measurement wiring mode:
2 in Aron – Reading of three currents (3-phase) with two CT in Aron configuration.
1 balanced – Reading of a single current with the single CT.
P18.n.04 – Rated current flowing in the power factor correction branch under normal conditions.
P18.n.05 – Branch of the circuit where measuring CTs are located for harmonic protection.
P18.n.06 – Max current threshold in the power factor correction branch, used to generate alarm A11.
P18.n.07 – Current THD maximum threshold in the power factor correction branch and used to generate alarm A12.
P18.n.08 – 5th harmonic content threshold in the power factor correction branch and used to generate alarm A13.
P18.n.09 – 7th harmonic content threshold in the power factor correction branch and used to generate alarm A14.
P18.n.10 – 11th harmonic content threshold in the power factor correction branch and used to generate alarm A15.
P18.n.11 – 13th harmonic content threshold in the power factor correction branch and used to generate alarm A16.
P18.n.12 – P18.n.13 – Maximum temperature thresholds 1 and 2 on the sensors connected to the harmonic protection module. Used to generate alarms
A17 and A18.
M19 - MISCELLANEOUS
P19.01 Disconnection of steps when switching to MAN mode
P19.02 Maintenance interval 1
P19.03 Maintenance mode 1
P19.04 Maintenance interval 2
P19.05 Maintenance mode 2
P19.06 Maintenance interval 3
P19.07 Maintenance mode 3
P19.01 – If set to ON, when switching from AUT to MAN mode, steps are disconnected in sequence.
P19.02...P19.07 – Defines three intervals of scheduled maintenance. For each of the three intervals, the duration in hours and the counting mode can be set.
Always = Count always active when the controller is powered.
Steps ins. = Hour count is incremented only when one or more steps are inserted/connected. When the time elapses, alarms, respectively A20, A21,
A22, are generated (alarms must be enabled).
UoM Default Range
A 5 1 - 30000
A 5
2 in Aron 2 in Aron
1 balanced
A 5 1 - 30000
Global Global
Step 1
Step 2
Step 8
% OFF OFF / 100 - 200
% OFF OFF / 1 – 200
% OFF OFF / 1 – 200
% OFF OFF / 1 – 200
% OFF OFF / 1 – 200
% OFF OFF / 1 – 200
° 55 OFF / 1-212
° 55 OFF / 1-212
UoM Default Range
OFF OFF/ON
h 9000 1 - 30000
Always Always
Step inserted
h 9000 1 - 30000
Steps ins. Always
Steps inserted
h 9000 1 - 30000
Steps ins. Always
Steps inserted
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G
B
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