Start-up manual
COMPAX-M / S
44
7.7.4 Safety chain / emergency stop functions
Establishing a safety chain for monitoring the drives and other control components
or a superordinate control unit usually requires a connection protected from wire
breaks. The contact outputs (closer) P (X8(9)/3) and S (X8(9)/4) are used for this
purpose. This closer establishes sequential switching for the mains module and the
axis controller. When the unit is operating correctly, the contacts are closed (P and
S are connected) and thereby indicate the readiness of the unit. If an error occurs
or if the drive system is switched off, the readiness is not displayed and the chain is
interrupted (see below).
The emergency stop input is used to activate or deactivate all drive controllers or
an individual controller supplied by the mains module. In accordance with the
safety chain described above, this input must be activated to power the motors.
This occurs either via an external contact between X8(9)/5 and X8(9)/6 (as is
shown in the figure below) or by applying voltage of between 15V and 24V to the
input X8(9)/6 against GND (X8(9)/2). If the contact is opened or the voltage is
removed from X8(9)/6 or routed to GND24V, the emergency stop sequence is
processed, e.g. all motors of the connected drive controller are decelerated and
switched off (no torque on the motor shaft); the ready contact drops.
!
After an emergency stop: error E55 (even in OFF status) and O1="0". The current
command is interrupted.
!
The controller brakes the motor (P10 = braking time from 100% speed to 0%).
!
When at a standstill, the controller is switched off and any idle holding brake is
closed.
!
Once the problem has been rectified, E55 must be acknowledged.
!
The current command is continued after START.
NMD: X8
COMPAX-S: X9:
Pin
Assignment
1
+24V DC (<50mA)
2
0V
3
P: Ready contact
4
S: Ready contact
5
+24V DC – Output for emergency stop
6
Emergency stop input (activated by 15V – 24V)
Connectors: Phoenix
MC1.5/7-ST-3.81
45
67
123
7
Screen
COMPAX 35XXM: X19
Pin
Assignment
1
+24V DC (<50mA)
2
0V
3
P: Ready contact
4
S: Ready contact
5
+24V DC – Output for emergency stop
6
Emergency stop input (activated by 15V – 24V)
7
+24V DC (<50mA)
8
reserved
9
+24V DC (<50mA)
10 Enable
Connectors: Phoenix
MC1.5/7-ST-3.81
45
67
123
8
9
10
11
11 Screen
Readiness,
safety chain
Emergency stop
Emergency stop
characteristics :
Emergency stop
and ready on
connector:
