SEW-Eurodrive D 16, Руководство по эксплуатации

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4
Installation
VARIMOT® in category 2G
12
Operating Instructions – Explosion-Proof VARIMOT
®
Variable Speed Gear Units and Accessories
4 Installation
4.1 VARIMOT
®
in category 2G
General
information • SEW explosion-proof variable speed gear units of the VARIMOT
®
D/DF 16-46 series
and VARIMOT
®
D/DF 16-46B series meet the design requirements of equipment
group II, category 2G (explosive gas atmosphere). These units are intended for use
in zones 1 and 2 .
• A standard feature of the SEW-EURODRIVE explosion-proof variable speed gear
units of the VARIMOT
®
series is a tapped hole for installing a voltage encoder.
Designation "X" • If the designation "X" appears after the certification number on the declaration of
conformity or the EC prototype test certificate, this indicates the certificate contains
special conditions for safe application of the variable gear unit.
Temperature class • VARIMOT
®
variable speed gear units, category 2G (explosive gas atmosphere) are
approved for temperature class T3. The temperature class of the variable speed gear
unit is indicated on the nameplate.
Ambient
temperature • VARIMOT
®
variable speed gear units may only be used at an ambient temperature
of –20 °C (–4 °F) to +40 °C (+104 °F).
Output power and
output torque • It is essential that nominal values of output power and/or output torque are main-
tained.
Speed monitoring • VARIMOT
®
variable speed gear units in category 2G may only be operated with a
speed monitoring device. The speed monitor must be correctly installed and adjusted
(see Sec. "Startup", Speed monitoring).
Strictly observe the safety notes on page 7 when installing the variable speed
gear unit.
Verify the speed monitoring function before startup.