schmersal bp408, Installation Manual

Page: 85 / 122

Installation manual of system “bp408” - Commissioning 85
The inspection or return motion control system remain in operation.
The levelling equipment continues to remain in operation (see EN 81-
20,5.4.10).
27. The motor is protected by PTC resistor monitoring (PTC) with PTC resistor
wrapped in the windings of the three-phase motor. The monitoring circuit
integrated in the bp408 control system controls the motor operating
temperature.
28. The PTC threshold values are monitored and processed by a sequential circuit.
a) Temperature normal value <2.2 kOhm = normal operation,
b) Temperature too high value > 2.7 kOhm = PTC resistor has tripped,
See fault messages
settings in the setup menu:
Cable
elevator
Stop immediately without a block
Stop at the next level switch without block
Stop immediately with block
Stop at the next level switch with block
hydraulic life
Stop with return without block
Stop without return without lock
Stop with return with lock
Stop without return with lock
29. The fault message is entered into the stack memory and the fault list when the
motor operating temperature is exceeded. If remote monitoring is connected,
the
fault is immediately reported to the service center.
30. The return to the lowest station in normal mode in case of hydraulic lifts, i.e.:
all safety functions are OK,
a)
is automatically initiated after the set time (max. 15 min.).
b) the return immediately ends after the control system is sqitched off (e.g.
remote off).
c) takes place automatically after switching off the landing control after the
set time (max. 15 min.).
 In all cases a), b) and c) the subsidence correction system continues
to operate (see EN 81-20, 5.12.1.10).
 Upon arrival at the lowest stop, the lift door will open and close in all
cases a), b) and c). The button “Door open” always remains active.
 The car light can be switched off quietly with lift doors closed; freely
adjustable. The car light is switched on immediately during operation.
31. If the upper emergency limit switch is actuated in hydraulic lifts, the lift will stop
immediately. If the car is released again by subsequent lowering, all normal