Operating Instructions for Actuators Type AB with Control Unit
OM-ENGLISH-ABCSC.V1.2-16xx-V2.02-2023.04.27 2 General
(electronic reversing contactors).
Further we recommend the installation of a motor protection circuit breaker on site as additional protection for
rapid engine warming up (block). The tripping current must be adjusted to 1.2 . . . 1,5-times of the motor current,
or at explosion-proof models proceed according to the corresponding guidelines of the National Explosion
Protection Authority.
2.8 Ambient temperature
Unless otherwise defined according to special order, the following operational temperature generally applies:
• open-loop control actuators from -25°C to +70°C
• closed-loop control actuators from -25°C to +60°C
• Explosion-proof actuators (according to EN60079-0 Standard):
Type min. Temp. max. Temp
Standard -20°C +40°C
TT40 -40°C +40°C
TT50 -50°C +40°C
HT60 -20°C +60°C
HT70 -20°C +70°C
CAUTION: The maximum operational temperature also depends
on the built-in components. Please observe the technical data
sheets.
2.9 Delivery condition of the actuators
For each actuator, an inspection report is generated upon final inspection. In particular, this comprises a full
visual inspection, calibration of the torque measurement in connection with an extensive run examination and
a functional test of the micro controllers.
These inspections are conducted and documented according to the quality system and can be found in the
document gag (mounted on the handwheel).
The basic setting of the end position must be performed after assembly on the actuator.
CAUTION: Commissioning instructions (see section 5, page 15)
must be strictly observed! During assembly of the supplied valves
at the factory, end postions are set and documented by attaching
a label (see Figure 10).During commissioning at the plant, these
settings must be verified.
Figure 10: Label
9
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