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AMI Deltacon Power
Installation
Inductive load
Resistive load
Actuators
A-96.250.451 / 190121
CAUTION
Risk of damage of the relays in the AMI Transmitter due to
heavy inductive load.
Heavy inductive or directly controlled loads (solenoid valves, dos-
ing pumps) may destroy the relay contacts.
To switch inductive loads > 0.1 A use an AMI relay box
available as an option or suitable external power relays.
Small inductive loads (max 0.1 A) as for example the coil of a power
relay can be switched directly. To avoid noise voltage in the
AMI Transmitter it is mandatory to connect a snubber circuit in paral-
lel to the load.
A snubber circuit is not necessary if an AMI relaybox is used.
A
B
C
D
Resistive loads (max. 1 A) and control signals for PLC, impulse
pumps and so on can be connected without further measures
A
Actuators, like motor valves, are using both relays: One relay contact
is used for opening, the other for closing the valve, i.e. with the 2 re-
lay contacts available, only one motor valve can be controlled. Mo-
tors with loads bigger than 0.1 A must be controlled via external
power relays or an AMI relay box.
B
A
AC or DC power supply
B
AMI Transmitter
C
External power relay
E
D
Snubber
E
Power relay coil
A
AMI Transmitter
B
B
PLC or controlled pulse pump
C
C
Logic
A
AC or DC power supply
A
B
AMI Transmitter
C
C
Actuator
M
27
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