Protect PV.500-MH Operating Instructions
X7: | Connection to MultiCom interface |
S1: | Service switch |
X3: | When a signal is received, the contact between the two |
| contact points with the lower numbers is closed (normal- |
| ly open or "NO"). |
X4: | When a signal is received, the contact between the two |
| contact points with the lowest numbers is open (normally |
| closed or "NC"). |
X5: | The control signal is active when the input is bridged |
| (normally open). The inverter is switched off. |
The following default signals are used for remote signalling:
Inverter feed operation | (NO) | |
DC distribution signal* | (NO) | |
AC distribution signal* | (NO) | |
(NO) | ||
X4.1 | Inverter fault* | (NC) |
Inverter remote | (NO) |
*): Collective signals that contain all messages and faults
Figure 23 shows the normally closed contact in the state that ap- plies when the signal is not active (normally open) or the voltage is zero.
The service switch enables maintenance work on the unit to be signalled to the MultiCom interface using various protocols.
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