Emergency Stop - ABB ACSM1 Manual

82
• Rising edge of encoder DI1 (proximity switch signal) is detected at the first mark
of the belt. Position 0 mm is stored to signal
• Falling edge of encoder DI2 (proximity switch signal) is detected at the second
mark of the belt. Position 40 mm is stored to signal
• The reference distance between the marks is 60 mm and the measured distance
between the marks is 40 mm, thus the error is 20 mm:
(62.18 PROBE2 POS
PROBE1 POS
Note: Only after the active correction is finished is the next position latching enabled.

Emergency stop

Note: The user is responsible for installing the emergency stop devices and all the
additional devices needed for the emergency stop to fulfil the required emergency
stop category classes.
The emergency stop signal is connected to the digital input which is selected as the
source for the emergency stop activation (parameter
EM STOP
MAIN
Note: When an emergency stop signal is detected, the emergency stop function
cannot be cancelled even though the signal is cancelled.
For more information, refer to Application Guide: Functional Safety Solutions with
ACSM1 Drives (3AUA0000031517 [English]).
Drive control and features
1.01 SPEED ACT
Encoder DI1
Encoder DI2
1.12 POS ACT
- 62.16 PROBE1
MEAS)] = (60 - 0) - (40 - 0) = 20 mm
OFF1). Emergency stop can also be activated through fieldbus
CW).
t
t
t
POSITION DERIVATION
MEASURED POSITION DIFFERENCE
t
4.03 PROBE1 POS
4.04 PROBE2 POS
POS) - (4.04 PROBE2 POS MEAS
10.10 EM STOP OFF3
MEAS.
MEAS.
- 4.03
or 10.11
(2.12 FBA