Digital inputs and external power-off (EPO)
To control the active power, an external ripple control receiver
can be connected to the digital inputs.
Pin
Short circuit
Assigned action
V1
-
-
K0
V1 + K0
External power-off (EPO)
K1
V1 + K1
Max. Active power 0%
K2
V1 + K2
Max. Active power 30 %
K3
V1 + K3
Max. Active power 60 %
K4
V1 + K4
Max. Active power 100 %
K5
V1 + K5
Reserved
K6
V1 + K6
Reserved
After commissioning, the relays for the external power-off can
be defined on the display of the inverter as normally closed or
normally open relays.
Dry contacts
The inverter has two dry contacts. The contacts are closed
when the relays energize.
Event
Description
Disabled
The functions for the dry contacts are swit-
ched off.
On Grid
Inverter is connected to the mains grid.
Fan failure
The fans are defective.
Insulation
Insulation test failed.
Alarm
An error, failure or warning message is
present.
Failure
An error message is present.
Fault
A failure message is present.
Warning
A warning message is present.
An event can be assigned to the dry contacts can be set on the
inverter display after commissioning.
The default setting for both dry contacts is "Disabled".
47
Quick installation guide for solar inverter M88H RPI883M121300 RPI883M122300 EU V1 EN 5017414200_00 2019-11-07
Connecting the communication card
Connecting the digital inputs, dry contacts and external power-off (optional)
