Elgo LIMAX33 CP-00 SERIES, Owners & Safety Manual

Page: 66 / 92

Safety Functions
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13.2.6.5 Positions of “inspection limit switches” and “pre-triggered stopping system limit
switches”
In EN81-21-state additional limit switches are activated:
1. Upper/lower stopping system limit switch => opening eSGC and therefore acting safety gear when the
corresponding stopping system limit switch positions are over-traveled. Theses switches are only active if
the corresponding safety function (upper/lower pre-triggered stopping system) is enabled (

14.1.2),
they are calculated with reference to the upper/lower limit switch references as they have been learned
in teach mode (

11.2.2), refer also to

13.2.8.
2. Upper/lower inspection limit switch => opening OC and therefore stopping the car by machine brake
the corresponding inspection limit switch positions are over-traveled. They are calculated with reference
to the upper/lower stopping system limit switch positions (see above and refer also to

13.2.8).
Before the position of the stopping system limit switch is reached, the OC opens (inspection limit switch) opens.
So normally to car will stop before the stopping system limit switch is reached.
In case of “upper/lower pre-triggered stopping system” is disabled, there is no pre-triggered stopping system
limit switch. In this case”, the positions of the upper/lower inspection limit switch is calculated as an offset to the
upper/lower limit switch references as they have been learned in teach mode

11.2.2.
Figure 22: Positions of inspection and stopping system limits in case of short head/pit and in case of head/pit-clearance
Lower reference
Upper
reference
Upper stopping
system limit
Upper inspection
limit switch
Offest upper
stopping system
Offset upper
inspection limit
Lower reference
Lower stopping
system limit
Lower inspection
limit switch
Offset lower
stopping system
Offset lower
inspection limit
There is a short head:
Upper pretriggered
stopping system enabled
There is a short pit:
Lower pre-triggered
stopping system ensabled
Conditions in case of
short head and short pit:
Upper reference
Upper inspection
limit switch
Offset upper inspection limit
Offset lower
inspection limit switch
There is enough head clearance:
Upper pretriggered
stopping system disabled
Lower inspection
limit switch
Conditions in case of sufficiant head and pit
clearance due to EN81-20§5.2.5.7/§5.5.5.8
.
There is enough
pit clearance:
lower pretriggered
stopping system
diabaled