13
Main board: terminals 7 + 8
Terminal box: terminals 20 + 21
8.3.4 Fieldbus interface (optional)
Optionally a fieldbus interface can be fitted to the AMS-actuator, with wiring to a terminal block or an external
socket.
-> See special operating instruction for AMS-Fieldbus.
8.4 Accessories
8.4.1 Space Heater (optional)
Actuators PSQ-AMS can be fitted with a space heater. When using actuators in environments with high temperature
fluctuations or high humidity, we suggest a heating resistor be fitted to prevent the build-up of condensation within
the enclosure.
8.4.2 Adjusting Additional Position Switches (optional)
For PSQ-AMS two switches for position feedback are available as factory-mounted option. They are available with
silver contacts (for currents between 10 mA and 5 A at maximum 230 V). Special switches with gold plated contacts
for low power (up to 100 mA and 30V) are available on request. Connection goes to terminal X6 or terminals
22/27/28 and 23/29/30 in case of wiring to the terminal box.
Figure 17: Mounting and connecting of the
space heater PSQ503 – 1003AMS
Mounting of the space heater has to be made to the
indicated place on the base plate by using the
screws provided.
Figure 16: Mounting and connecting of
the space heater PSQ103 - 203AMS
In actuators PS-AMS the space heater is powered
via the power supply of the actuator does not have
to be fed separately. For retro-fitting the heating
resistor, wiring of the two cables has to be made to
the terminals on the main board as per the pictures.
Route the cables in a way to prevent
them from being squashed by the
main cover, and from being touched
by moving parts inside the actuator.
Summary of Contents for PS-AMS PSQ Series
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