Abus LIS-SE, Руководство по эксплуатации

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Page 3 AN120076.000_EN
1 General
The operating instructions must always be stored near
the ABUS rope hoist and must be available to operating
personnel at all times.
Operating, maintenance and repair personnel must
have read and understood the operating instructions
before starting work.
1.1 Brief Description of System
The ABUS LIS- SE load indicator system is a compact
universal load measurement and evaluation system for
hoists and crane systems. It also performs certain hoist
control functions. The design of the LIS–SE is based on
the microprocessor–controlled evaluation of the cur-
rent and voltage of the hoist motor.
The basic LIS–SE module with optional load population
recorder offers the possibility of recording and evalua-
ting the actual operating conditions of a crane system
in accordance with FEM 9.755.
The unit can monitor a hoist for compliance with the
maximum admissible load capacity. In addition, the
wide variety of functions integrated ensure a high de-
gree of versatility.
Special features:
D
overload shut–down function
D
load evaluation
D
LAZ and/or GLZ load indicator (optional)
D
load population recorder in accordance with FEM
9.755 (optional)
D
second shut- down point (adjustable in 2 % steps)
D
shut–down of main lifting speed on sudden load
take–up
D
Overload shut–down points can be set up to a
maximum of 110 % of the rated load capacity of the
hoist.
D
integrated digital operator terminal for adjustment
of unit
D
display of fault messages on operator terminal and
load indicator
D
electrically isolated control signals
D
compact space–saving design
D
all connections made by plug–type connectors for
easy maintenance
D
integrated control and monitoring functions
1.2 Use for the Intended Purpose
The ABUS LIS- SE is designed for use in the control sy-
stems of electric hoists. The unit was designed espe-
cially for use with pole- changing induction motors.
However, it may also be used for monitoring non-
pole- changing induction motors. It is intended for in-
stallation in a closed housing and for use under the
conditions listed in Section 4 below.
Special investigations must be made concerning the
suitability of the unit for use in other conditions and mo-
des of operation. It may be necessary to obtain the ma-
nufacturer’s approval for any deviations.
1.3 Notes on warranty
ABUS assumes no liability for any loss or damage cau-
sed by use other than for the intended purpose or any
work performed improperly or by unauthorized per-
sons. ABUS assumes no liability as towards third par-
ties.
Attention!
If you modify any components under your
own responsibility, assemble components
other than in accordance with the installation
instructions and/or plans or use any compo-
nents other than genuine ABUS compo-
nents, ABUS will be released from any war-
ranty obligations for the entire equipment.
ABUS assumes no liability whatsoever for
any damage to cranes or hoists which may
be caused by the incorrect setting of the unit.
It is recommended that repair and mainte-
nance work should be carried out by the
ABUS service department.
1.4 Replacement of unit
If a unit with load population recorder is replaced, the
last value of the load population recorder must be read
out and entered as the starting value for the new unit. In
addition, a note must be made in the crane test book.
_________________________________
2 Functions
General:
in order to evaluate the load, the LIS- SE measures the
current and voltage on all three phase conductors fee-
ding the motor. Current is measured via an external in-
strument transformer module.
A load- proportional signal is derived from the values
measured.
As load evaluation is not possible for about 150 ms in
the start- up phase of the hoist motor, only the slow ho-
ist speed is initially released for operation. After the
completion of the load measurement and a delay of 0.5
sec., the fast speed is enabled if overloading is not de-
tected.