gefran VDL200 Series User Manual

VDL200 • Quick installation guide - Specifications and connection 63
A.3 - Brake monitoring system (A3 Amendment)
A.3.1 Introduction
The brake monitoring function in the VDL200 series enables implementation of the automatic brake monitoring function
as required by EN81-1 A.3 §9.11.3.
Two functional elements are required to implement the brake monitoring function:
1. Management of the Brake fault alarm
2. Resetting of the Brake fault alarm
The basic wiring diagram for implementing this function is shown in Figure 1.
M
3
~
U2 V2 W2
DI8
DI7
DI6
DI5
DI4
DI3
DI2
DI1
ENHW DICM
0VOUT 24VOUT
KEYPAD / DCP
T1 T2 T3 123456789101112
PE
PE
D
C1
BR
EM
MltSpd S1 Emergency mode MltSpd S0
StartFwdCmd StartRevCmd
K2M
K3M
Safety
chain
BREAKING
RESISTORS
C
BRAKE
K2M
K3M
BR
TRAFO
FBK
5
6
3
4
1
2
K2M
5
6
3
4
1
2
K3M
(optional)
RO2C
RO2O
Emergency Fault BrakeFdb1 BrakeFdb2
24V from
Safety Chain
AC
L1
1
2
S1
3
4
5
6
F1
U1 V1 W1
L1 L2 L3
US1
S2
3 Phase Mains
BR
XE
PE
VDL200
Figure 1 : VDL200 connection diagram for amendment A3.
This shows that :
A) The VDL200 controls brake activation/deactivation via relay BR
B) Both brake feedback signals are sent to the VDL200 inputs
C) The VDL200 signals any malfunctions (including brake malfunctions) to the system control unit via internal relay
RO1.
D) The system control unit blocks the system brake in safety by deactivating contactors K2 and K3.
According to an alternative arrangement, the VDL200 closes/opens contactors K2 and K3 but the power supply to the
coils and to the VDL200 commands comes from the control unit.
The purpose of the brake fault alarm is to check whether the states of the two feedback signals from the brake are
consistent and, in case of doubt, to include a function whereby the VDL200 drive stops the system. The procedure for
including the alarm is described below.

gefran VDL200 Series Specifications

General

Brand	gefran
Model	VDL200 Series
Category	DC Drives
Language	English