Two-Hand Control; Safety Mats And Bumper - Leuze electronic MSI 400 Operating Instructions Manual

4.1.5

Two-hand control

Tab. 4.9: Two-hand control connection
Electrical connection: Example from MSI.designer
Type IIIA,
without test-
ing
Type IIIC,
without test-
ing
4.1.5.1 Type IIIA
With type IIIA, two equivalent inputs (make NC contacts for both two-hand buttons) are monitored.
A valid input signal is only generated when the ON state (H level) is present at both inputs within a time of
0.5 seconds (synchronous change, both two-hand buttons actuated) and both were previously in the OFF
state (L level).
4.1.5.2 Type IIIC
With type IIIC, two pairs of equivalent inputs (NC (normally closed contact)/NO (normally open contact)
contact pairs for both two-hand buttons) are monitored.
A valid input signal is only generated when the ON state (H/L level) is present at both inputs within a time of
0.5 seconds (synchronous change, both two-hand buttons actuated) and both were previously in the OFF
state (L/H level).
NOTICE
You can find additional information in the operating instructions for two-hand control.
i
4.1.6

Safety mats and bumper

Tab. 4.10: Safety mats connection
Electrical connection: Example from MSI.designer
Short-circuit-forming
safety mat in 4-con-
ductor technology, at
test output
Short-circuit-forming
multi-safety mat in 4-
conductor technology,
at test output
Leuze electronic
Channel 1: Contact between 24 V and
I1
Channel 2: Contact between 24 V and
I2
NO (normally open contact) between 24
V and I6 (I8)
NC (normally closed contact) between
24 V and I5 (I7)
Channel 1: Contact between
T1 and I1
Channel 2: Contact between
T2 and I2
Channel 1: Contact between
T1 and I1
Channel 2: Contact between
T2 and I2
MSI 400
Connecting devices
43