Bitzer SE-i1, Техническая информация, Страница: 3 / 56

CT-110-2 3
1 Introduction
The protection device SE-i1 monitors the essential op-
erating parameters of the semi-hermetic compact
screw compressors (CS. compressors) and semi-her-
metic screw compressors (HS. compressors) and pro-
tects the compressors from operation under critical
conditions.
During operation, numerous operating data of the com-
pressor can be tracked and evaluated via the integ-
rated interface using the BEST SOFTWARE, for ex-
ample, the position in the application limits diagram.
The data are recorded and allow a specific diagnosis
and optimization of the compressor and system opera-
tion.
In addition, the device can be fully integrated into the
superior control via a Modbus RTU interface. In addi-
tion to reading out the sensor values, the multi-stage
warning and alarm system can be used in many cases
to react to critical operating conditions and to prevent a
compressor cut-out.
This Technical Information describes the protective and
monitoring functions, the electrical connection of the
protection device and the communication with the
BEST SOFTWARE.
1.1 Also observe the following technical documents
• SB-170 Operating Instructions of semi-hermetic
compact screw compressors (CS. series).
• SB-100: Operating Instructions of semi-hermetic
screw compressors (HS.53 .. HS.74).
• SB-110: Operating Instructions of semi-hermetic
screw compressors (HS.85).
2 Safety
2.1 Authorized staff
All work done on the protection devices, compressors
and refrigeration systems may only be performed by
qualified and authorized staff who have been trained
and instructed accordingly. The local regulations and
guidelines will apply with respect to the qualification
and expertise of the specialists.
The protection devices have been built in accordance
with state-of-the-art methods and current regulations.
Particular importance was placed on user safety.
This Technical Information must be kept available near
the refrigeration system during the whole lifetime of the
protection device.
2.2 Residual risks
Compressors and electronic accessories may present
unavoidable residual risks. This is why any person
working on this device must carefully read this docu-
ment!
The following regulations shall apply:
• the relevant safety regulations and standards (e.g.
EN 378, EN 60204 and EN 60335),
• generally accepted safety rules,
• EU directives,
• national regulations.
2.3 Safety references
are instructions intended to prevent hazards. Safety ref-
erences must be stringently observed!
!
!
NOTICE
Safety reference to avoid situations which may
result in damage to a device or its equipment.
CAUTION
Safety reference to avoid a potentially hazard-
ous situation which may result in minor or mod-
erate injury.
WARNING
Safety reference to avoid a potentially hazard-
ous situation which could result in death or seri-
ous injury.
DANGER
Safety reference to avoid an imminently hazard-
ous situation which may result in death or seri-
ous injury.