Safety technology: MCB14x Document No.:
MG34Y104
Rev.: 06 23 October 2012 Page 9 of 25
Figure 2: Standard application for DEFAULT parameters
4. Basic operation of device
The description of the various basic operations relates to the DEFAULT configuration when shipped using the
speed detection function. The following safety operations are performed:
-
Continuous measurement of the speed of the drive to be monitored
-
Exceedance of maximum speed SMS (Parameter P303) immediately trips STO
-
Drive speeds greater than Zero Speed (Parameter P301) enable the protective interlock.
The control inputs SS1, SLS and Door extend these safety operations:
Controlled slowdown of drive by enabling frequency converter ramp function
Alternation of maximum speed to be monitored
Detection of open protective devices
The way the outputs react to system and application faults is described in the Chapter entitled "Fault monitoring".
4.1.
Operation of inputs
With the exception of FBC, all inputs are read in dual channel format. Contact-based signallers with NC operation
and test signal-based power in the DEFAULT configuration are used by the module.
1
3
0
B
D
8
6
5
.1
0
Emergency off
SS1
Door
B option
SLS
37
18/27 (for SS1)
20
Power module
FC302
S
a
fe
c
h
an
n
e
l
Operation control card
C
o
n
tr
o
l b
o
a
rd
5 VDC
Inverter
M
24 V supply
SS1_1
SS1_2
Pout_1
Pout_2
SSO
Door_2
Door_1
SLS_1
SLS_2
Diag
Ramp
STO_O
MCB140
24 V
GND
24 V
Pr_1
Pr_2
ExC
FBC
24 V
GND
