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2.
Safety and Precautions
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Use Contrac power electronics EAS 822, EBS 852, and EBS 862 for driving the Contrac actuators
specified on the electronics ID label, only.
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Prior to maintenance or repair works always disconnect the electronics from mains and secure the
respective control actuator against reactive process forces.
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All installation and maintenance works must only be performed by qualified specialists who have
been trained for these tasks.
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Observe the locally valid accident prevention regulations and the regulations concerning works on
electrical equipment.
2.1
Software Update
Attention! Consider Hard-and Software compatibility!
Read carefully the current manual of „Save & Restore“ or „ECOM688“. Consider the relevant hints con-
cerning the assignment of firmware (UAPM) and hardware or contact the manufacturer.
3.
Transport and Storage
Contrac electronics may be stored under moist and aggressive condition for a short time. The equip-
ment is protected against external corrosive influences. However, direct exposure to rain, snow, etc.
must be avoided.
Interior areas of the actuator with risk of condensation are protected by desiccant.
Desiccant in electronics: . . . . . . . . . terminal box
Transport temperature: . . . . . . . . . . . -30° C … + 80° C
Storage temperature:. . . . . . . . . . . . . preferably 0° C … + 40° C
The desiccant guarantees sufficient protection for approximately 150 days. It can be regenerated at a
temperature of 90° C within 4 h.
The desiccant must be removed prior to commissioning the actuator or the electronics.
The mounting rack must only be transported empty and by no means with installed electronic units.
4.
Delivery status
Unless otherwise specifies the electronic units are supplied with the following standard configurartion:
end pos. behaviour for 0/100%:
keep tight with rated torque / force
setpoint settings:
linear; setpoint = position value
setpoint input:
4... 20 mA
function selection:
positioner, parameter: setpoint
actual value:
4... 20 mA
digital inputs:
DI 1 M/A selection; DI 2 / DI 3 manual inter/-
digital output:
DO 1 ready for operartion, DI 2/3 end position signal
operating range:
not adjusted
The individual actuator / electronic unit configuration may deviate from the standard settings. Use the
graphical user interface to view the settings.
