Indicator Lights And Signal Relay - Grundfos Hydro Multi-E Manual Del Usuario

13. Indicator lights and signal relay

The operating condition of the Hydro Multi-E is indicated by the
green and red indicator lights on the control panel. See fig. 28.
Green
Red
Fig. 28 Position of indicator lights on the control panel of
single- and three-phase Hydro Multi-E
Besides, the Hydro Multi-E incorporates an output for a
potential-free signal via an internal relay.
For signal relay output values, see section
The functions of the two indicator lights and the signal relay are
as shown in the table below:
Indicator lights
Fault Operation
(red) (green)
Off Off
Off On
Off Flashing
On Off
On On
On Flashing
Resetting of fault indications
A fault indication (red indicator light) will be automatically reset by
the Hydro Multi-E when the fault has disappeared.
18
Red
Green
10.3.2 Signal relay.
Signal relay activated during:
Fault Operation
Description
Ready
The power supply has been switched off.
The Hydro Multi-E is operating.
The Hydro Multi-E has been set to stop via the control
panel, the R100 or bus.
The Hydro Multi-E has stopped because of a fault and will
attempt to restart.
If the cause is "Sensor signal outside signal range", the
Hydro Multi-E will stop and the fault indication cannot be
reset until the signal is inside the signal range.
The Hydro Multi-E is still operating, but one or two pumps
are faulty. The fault indication will be reset automatically
when the fault has disappeared.
The Hydro Multi-E has been set to stop via the control
panel, the R100 or bus, but one or two pumps are faulty.