Keba KeTop T100 - Enabling Switch

Connection KeTop T100
22 User's Manual, version: 3.1 / material no.: 57448
© KEBA 2006
Enabling Switch
The KeTop is equipped with two enabling switches, one at the left and one
at the right side of the device. This allows a left- and right-hand operation of
the enabling switch. Both enabling switches are equivalent and parallel
switched. So for enabling only one of both enabling switches must be acti-
vated.
The enabling switch consists of a 3-position operating element and an
separated evaluation electronics. An essential feature are the continuous
two-channel circuits beginning from the actuating elements up to the con-
necting terminals. For the evaluation circuits different technologies and cir-
cuits are used. Due to the electronic switching contacts, their lifetime does
not depend on the load provided the nominal values of the load (ohmic, in-
ductive and capacitive) are not exceeded.
Functioning
The actuating element consists of two symmetrically arranged slides. The
position of these slides is detected by electrical switches and transmitted to
the evaluation electronics.
Positions of enabling switch:
Position Function Enabling switch Contacts
1 home position is not pressed enabling outputs are open
2 enabling is pressed enabling outputs are closed
3 panic is pressed strong enabling outputs are open
For the enabling switch, the following switching sequences are possible:
Enabling
Home position
x
enabling
y
home position
x
y
OFF
ON
OFF ON
ZT
x
12 3
OFF ON
OFF ON
ZT
x
Circuit 1
Circuit 2
Circuit 1
Circuit 2
123
123
ZT
x1
ZT
x2
Circuit 1Circuit 2
Evaluation
electronics
Enabling
switch
x ... L (Left) or R (Right)
Contact travel diagram for enabling