KW DAVID 613, Руководство по эксплуатации, Страница: 11 / 264

KW Aufzugstechnik GmbH OPERATING MANUAL DAVID-613
DAVID-D613-V125-E 13.04.2021 Page - 11 -
1.4 DESCRIPTION OF PROCESSOR INQUIRY - SAFETY CIRUIT
Product Control system for elevator systems
Type Microprocessorsystem DAVID-613 – Centralunit ZR
Description Prozessor Monitoring Safety-Circuit control system DAVID- 613 ZR,
based on EN 81-1: 1998 + A3:2009, EN 81-2: 1998 + A3:2009 and
EN 81-20: 2020, EN81-50: 2020 clause 5.15
USAGE
The polling circuit is to inform the processor system of the states of the individual taps in the
safety circuit.
FUNCTION
The Central Processing Unit contains a function through which the voltage level in the safety
circuit of the elevator system is monitored. The safety circuit voltage is divided through X2
capacitors and resistors and then forwarded to the input of the opto-couplers. Further pro-
cessing of these signals is executed through the connected electronic circuits, under potential
separation.
ENVIRONMENT CONDITIONS
The ambient temperature range of the processor system including the interrogation circuit is 0
° C - 45 ° C in the control cabinet.
The input voltage range for each sample input is 5%, -15%.
The input impedance of the individual sample inputs is approx. 10KOhm, the power consump-
tion per sample input is approx. 20mA.
FUNCTION TEST
All safety-relevant contactors must only use the N1-potential as zero potential. For the purpose
of testing, the N1-potential can be disconnected. This must cause all safety-relevant contactors
to trip.
DECRIPTION OF TERMINAL CONNECTIONS
For the inquiry of voltage levels in the safety circuit, 12 input terminals (U1 up to U12) are
available. These terminals are plug-in terminals in the 7,62 mm standard. The N and N1 po-
tential are also connected to these terminals. The wiring diagram shown below represents the
actual circuit layout as tested and executed.