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3.3.1 Function of load indicator
3.3.1.1 Normal functions
1. Theloadisalwaysmeasuredandindicatedwiththe
motor running in lifting operation.
04.93
2. When the hoist is at a standstill and during lowe-
ring, the last value measured is displayed.
e.g.
04.93
3. The value indicated is updated when the hoist is rai-
sed again.
12.31
4. If the hoist is shut down as a result of overloading,
the display flashes at one- second intervals.
16.57
3.3.1.2 Malfunctio n signals
1. If the hoist is shut down because the maximum limit
of the inching counter is exceeded, the number of
inching operations completed is displayed.
e.g.
--17
2. In the case of mutual monitoring of tw o hoists, this
symbol appears on the display in the event of a ho-
ist failure as long as the up or down button on the
pendant control is pressed:
––H2
3. If a rotor power input of <10Watt is measured with
the motor in operation, the hoist is shut down and
U_I
is indicated on the display as long as the ”up” or
”down” button on the pendant control is pressed.
_________________________________
4TechnicalData
4.1 Load Indicator SystemLIS–SE
LIS – SE 17787 17788 17789
Power supply voltage A1,A2: 230VAC 10% 110VAC 10% 48VAC 10%
Input voltage range E1–E7; EA 80–230VAC 80–230VAC 35–48VAC
Measuring range L1, L2, L3 0 – 627 V AC
Transformer output voltage I1, I2, I3 0 – 7,24 V AC
Power supply frequency 50 – 60 Hz
Switch contacts (3u,1a): 250 V AC, 8A
Power required max. 15VA
Ambient temperature range –20 to +55 C; no condensation
Output voltage for LAZ 5V, max. 250 mA
Indicator signal Q Serial data protocol ± 12V
Maximum acceleration time for hoist
motor
Low speed: 150 ms
High speed: 460 ms
4.2 LAZ / GLZ Load Indicator
P endant control
LAZ
Large load indicator
GLZ
Power supply voltage 5VDC 24VAC
Digit size 10 mm (LED) 127 mm (LED)
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