Manual – MOVIDRIVE® MDX61B Safety Module Option MOVISAFE® DCS..B
55
5
Connecting digital outputs
Installation
Example:
Signal processing in two channels and double output in the DCS..B option (PES).
Option DCS..B ensures comprehensive diagnostic functions to achieve as high as pos-
sible diagnostic coverage values. Make sure that elements for switching amplification,
such as relays, contactors, etc., are included in the switch-off circuit. You can use the
DC values for the output sensors in chapter "Diagnostic values" for a safety-relevant
evaluation of the overall system.
2411107595
PES = Programmable electronic system
I
A
= Input channel A
I
B
= Input channel B
L
A
= Logic channel A
L
B
= Logic channel B
O
A
= Output channel A
O
B
= Output channel B
c = Cross comparison
m = Monitoring
K1 = Actuator 1
K2 = Actuator 2
Digital output Output voltage Maximum output current
DO0_P
DO0_M
DC 24 V
DC 0 V
0.5 A (total current)
DO1_P
DO1_M
DC 24 V
DC 0 V
DO2_P
DO2_M
DC 24 V
DC 0 V
1.5 A
Actuator
I
A
O
A
L
A
I
B
O
B
L
B
c
PES
m
m
K1
K2
INFORMATION
• The maximum permitted inductive load of 0.5 J at the digital outputs DO0_P and
DO1_P must not be exceeded
• The total current load of the DCS..B option must not exceed DC 1.9 A. The output
power of the digital outputs DO0/DO1 depends on the output power of the digital
output DO2_P/M and the pulse outputs P1 and P2.
• For safety-relevant applications, use only external switching elements with a mini-
mum holding current of > 1.2 mA.
• Cross circuits and short circuits in the external wiring of the digital outputs are not
detected. For safe outputs, cross faults and short circuit therefore have to be pre-
vented according to EN ISO 13849-2 table D.4.
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