Kübler PSU01, Руководство по эксплуатации, Страница: 53 / 172

EN - page 19 (R60953.0009 3)
english
These contacts have a redundant design, but do not perform any
auto-self test operations and may only be used as shaft information for
a safety circuit according to EN81-20 5.6.7. The corresponding safety
circuit must be able to detect a contact malfunction. Suitable measures
must be take to detect whether the output contacts loses its redundant
capabilities/prevent it altogether.
These terminals 22 and 23 close with the shared potential on terminal 24 of the cabin is located in a
door zone.
5.4.3 Plug X6: Relay contact – door zone display connection
The emergency power via a 12 V battery is optional and is only used for displaying the door zones.
If the voltage drops below 20 V, the PSU01 switches to a fault state, opens all relays and only the door
zone +/- 70 mm is emulated on terminals 20 and 21, to facilitate an emergency rescue.
This contact closes if the cabin is located in a door zone.
5.4.4 Plug X7: Door bypass
Terminals 26 and 27 are used to bypass the door contacts and are open or closed according to the
requests of the control.
An external safety circuit for bypassing doors is expressly forbidden.
5.4.5 Plug X8 (optional): Inspection
The inspection is to be wired so that, in normal operation, 24 VDC is applied at the inspection input
(port X8) and that this voltage drops in inspection mode. This allows the PSU01 to recognize whether
the elevator is in inspection mode or not.
In order to prevent capacitive couplings, the general guidelines of this chapter, as well as the mainte-
nance requirements (see below), must mandatorily be complied with.