5 Commissioning and operation
| Behaviour on interruption of power supply
37
Manual Stepper motor module UR20-1SM-50W-6DI2DO-P
2575290000/03/03.2020
5.9 Behaviour on interruption of power supply
There are different scenarios for the event that the power
supply is interrupted.
PWR
SF
BF
MT
LINK1
ACT1
LINK2
ACT2
Service
X3
PN-IRT
6DI2DO-P
1SM-50W
4DI-P
X1
X2
U
IN
AC
AC
DC
DC
U
OUT
U
EXT
U
SYS
Interruption of the power supply
U
SYS
Internal system voltage
U
IN
Power supply for input modules
U
OUT
Power supply for output modules
U
EXT
External power supply for the motor driver
Case1: Power supply U
OUT
is interrupted
Requirement: U
OUT
= OFF, U
SYS
= U
IN
= U
EXT
= ON
Reaction:
DO0 and DO1 = OFF
The internal release for the motor driver is logically “zero“.
The module reports an error. The active motion is cancelled.
Case 2: Power supply of the u-remote station is interrupted
Requirement: U
SYS
= U
IN
= OFF, U
OUT
= ON, U
EXT
= ON.
Reaction:
DO0 and DO1 = OFF
The internal release for the motor driver is logically “zero“.
The module reports an error. The active motion is cancelled.
Case 3: Return of the power supply
Requirement: U
OUT
= U
SYS
= U
IN
= ON, U
EXT
= ON
Reaction:
DO0 and DO1 = ON, if Bits are set.
The internal release for the motor driver is logically “zero“.
The module reports an error. Travel commands are rejected
until the switch-on sequence is performed.
Switch-on sequence after power supply interruption, return
and restart
Requirement: The internal release for the motor driver is log-
ically “zero“.
Switch-on sequence:
1.
The module reports an error with Bit SM_ERR_CUR (PDE
9.6) “Stepper motor driver“.
2.
Set the release bit SM_AMP (PDA 9.7) “Enable motor
driver“ to 0.
3.
Set the Bit SM_MOV “moving“ (PDA 9.1) to 0.
4.
Acknowledge the error status with Bit SM_QUITT
(PDA 9.6) “Acknowledge error motor driver“.
Travel commands are now possible again.
