Siemens SINUMERIK 840D sl Equipment Manual page 132

Technical specifications
10.1 Handheld Terminal HT 8
Conditional rated short-circuit current
B
10d
When the PN Plus connection box is used:
PFH
Service life
Forced dormant error detection interval (mechanical actua‐
tion to the test the emergency stop)
Category
Performance Level
Note
The quantitative assessment of the emergency stop safety function must be based on the B
value corresponding to the used standards (e.g. ISO 13849-1) under consideration of the
respective application (frequency of the actuation, service life, diagnostics by the evaluation
unit, etc.). The B
button are taken into account.
When using the PN Plus terminal box, the specified failure probability (PFH
account. This value only applies when the technical properties of the PN Plus terminal box and
the quantitative conditions specified here (e.g. service life) are observed.
Enabling button
Supply voltage
Current rating, max.:
Current rating, min.:
Operating cycles
Actuation forces
Functional safety
EN ISO 13849-1:2015
EN 61508
Forced dormant error detection interval (mechanical actuation to the
test the enable and panic position)
132
(if no PN terminal box used)
d
value only applies when the technical properties of the emergency stop
10d
Switch position 2
Switch position 3
From switch position 1 to 2, typically
From switch position 2 to 3, typically
Category
Performance Level (PL)
Proof test interval (operating duration)
Safety Integrity Level (SIL)
PFH
d
1000 A, 6A gL/gG according to EN
60947-5-1
100 000
1.01 * 10
-7
20 years
1 year
3
PL d
) must be taken into
d
2-circuit , 3-stage
24 V DC
250 mA
0 A
10
5
5 * 10
4
3 N
17 N
4
PL e
20 years
SIL 3
5.07 * 10 -9
1 year
Handheld Terminal HT 8
Equipment Manual, 02/2024, A5E52918633B AA
10d