CIRCUTOR CDP-0 - Manual (Page 54)

CDP
54 Instruction Manual
In this case, the variable Inverter power will be programmed to 5000 W and
the variable Allowed injection to a value of -1%. Therefore, the generator
set will always be connected, supplying 50 W.
6.1.2.3. Inverse current relay
Parameters for the inverse current control relay (
see 4.1.2. OPERATION OF THE
GRID INJECTION PROTECTION RELAY ):
• Enable inverse current relay: activates the inverse current relay protection.
If the unit measures a negative power value in the grid, it desactivates the
inverse current relay (relay no. 4, NO terminals 9-10) to disconnect the
inverter.
This relay acts as redundant protection against a possible grid injection.
The relay has 3 terminals and can be NO or NC, depending on how it is
connected.
In three-phase mode it is essential to install a CVM Mini to measure the grid.
• Stop time: time during which the grid injection condition must remain active
before activating the inverse current relay (seconds).
• Reconnection time: time the unit waits before deactivating relay no. 4
(seconds) when it stops measuring the inverse current.
• Max. Disconnections: number of disconnections the CDP can perform via
the inverse current before it is definitively locked.
• Disconnect. Timeout: once the maximum number of reconnections has
been reached, this is the time taken for the unit to secure the inverse current
relay. This value must be equal to or higher than:
Disconnect. Timeout > = ( Stop time+ Reconnection time) x (Max.Disconnections).
6.1.2.4. Auxiliary load relays
(see
4.1.3. MANAGEMENT OF NON-CRITICAL LOADS (CDP-G Model) )
• Load Management Mode: allows you to select if you want to manage non-
critical loads:
Disabled : It does not manage non-critical loads.
Manual: It manages non-critical loads manually.
Dynamic : It manages non-critical loads dynamically.
If you select the Manual option, the 3 relays appear on the screen (
Figure 71 ):