60
ServoA Operation Manual
ID no.: LDS-O-SA-
EN
-202103
Functional Torque Off
6. Functional Torque Off (former
STO)
ATTENTION
•
The ServoA safety function “Safe Torque Off (STO)“ is no longer given due
to an expired certificate! The technical function is still available and can be
used for control purpose, it is not allowed to use it as a safety function in
applications!
6.1 Definition of terms
Functional Torque OFF
With this function the power supply to the drive is interrupted (no electrical isolation). The
drive must not be able to generate a torque and so perform any hazardous movement.
The standstill position is not monitored.
Restart inhibit
The restart inhibit prevents enabling of the evaluation unit after a shutdown following
a change of machine mode or after changing the method of confirmation. The restart
inhibit is only cancelled by an external command (such as the On button, or in KEBA
controllers the ENPO).
!
6.1.1 Overview of “functional torque off“ connections
ServoA offers a separate input for the torque off request, a facility to deactivate the
restart inhibit and a separate relay contact for feedback.
Des.
Term
Specification
Isolation
Digital inputs
ENPO
X8/18
· Disable restart inhibit torque off and enable
power stage = High level
·“Request torque off“ input = Low level
· OSSD-capable
· Signal delay time approx 10ms
· Switching level Low/High: ≤4.8 V / ≥18 V
· U
IN
max = +24 V DC +20 %
· R
IN
= 3.2 Ω
Yes
ISDSH
X8/3
·“Request torque off“ input = low level
· OSSD-capable
· Signal delay time approx 10ms
· Switching level Low/High: <4.8 V / >18 V
· U
IN
max = +24 V DC +20 %
· R
IN
= 3.2 Ω
Yes
RSH
RSH
X8/21
X8/10
Diagnose torque off, both tripping
channels active, one NO contact with
automatically resetting circuit-breaker
(polyswitch)
· 25 V / 200 mA AC, cos
φ
=1(AC1)
· 30 V / 200 mA DC, cos
φ
=1(DC1)
· Operating delay time approx 10ms
· 3x10
6
switching cycles
X8/21
X8/10
Yes
Table 6.1 Terminal assignment X8
Содержание ServoA SA52.0100
Страница 1: ...ServoA Operation Manual Servo controllers 2 2 A 20 A ...
Страница 6: ...6 ServoA Operation Manual ID no LDS O SA EN 202103 Space for your own notes ...
Страница 68: ...68 ServoA Operation Manual ID no LDS O SA EN 202103 Appendix Space for your own notes ...
Страница 69: ...69 ServoA Operation Manual ID no LDS O SA EN 202103 ...