X20 system modules • Motor controllers • X20SM1436
X20 system User's Manual 3.10
2043
4.25.7.15.5.7 Communication registers with SDC
SDC life sign monitoring
Name:
SetTime01
The module uses SDC life sign monitoring to check whether valid values have been received for the speed setpoint.
SDC life sign monitoring is activated in the SDC configuration register by setting bit 6 (SDCSetTime = on).
If the specified NetTime timestamp is in the past, then an error is triggered for the motor axis (only when the motor
is switched on). The module performs the following steps:
1) The CPU is informed of the error using the Drive bit (DrvOk) = 0
2) Braking at configured rated current with speed setpoint = 0
3) Wait for configured turn-off delay to expire
4) Power off motor
When the timestamp is back in the valid range, the motor can be powered on again by a rising edge on the
DriveEnable bit (see "Motor current").
Data type
Value
INT
-32,768 to 32,767
Motor current
Name:
DriveEnable01
BoostCurrent01
StandstillCurrent01
Bits 0 to 2 of this register can be used to control the motor's current supply.
Data type
Value
USINT
See bit structure.
Bit structure:
Bit
Description
Value
Information
0
DriveEnable01
x
Motor powered
1
BoostCurrent01
x
Maximum current
2
StandstillCurrent01
x
Holding current
3 - 7
Reserved
0
The possible status of bits 0 to 2
StandstillCurrent01
BoostCurrent01
DriveEnable01
Description
x
x
0
Motor not supplied with current
0
0
1
Rated current supplied to motor
0
1
1
Maximum current supplied to motor
1
0
1
Holding current supplied to motor
1
1
1
Holding current supplied to motor
Life cycle counter
Name:
LifeCnt
This register is incremented by one with each X2X Link cycle.
Data type
Value
SINT
-128 to 127
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