Moog ACV Series - Figure 146: 4; Object 0 X3250: Lower Current Border; Object 0 X3251: Analog Input Monitoring Time; Sensor Power Supply Monitoring

Moog ACV with CANopen bus interface 7 Servo valve functions
Monitoring
B99224-DV018-D-211, Rev. A, October 2018 245
Figure 146: 4…20 mA analog input signal monitoring
If the current is below <LowerCurrentBorder> (0x3250) for <anInputMonitoringTime_in_ms> (0x3251) ms,
cable break is detected.
If the 0…10 V or –10…10 V analog input type is used, cable break monitoring for all analog inputs is avail-
able. The sensor needs to be able to sink a current of at least 0.1 mA. A fault code is also generated by an in-
put voltage above 11 V or an input voltage less than –11 V.
7.15.8.4 Object 0x3250: Lower current border
This parameter contains the lower current boarder.
7.15.8.5 Object 0x3251: Analog input monitoring time
This parameter contains the delay time (in ms) before generating the fault code.
7.15.9 Sensor power supply monitoring
For the analog inputs 2…4 a sensor power supply cable break monitoring exists. A sensor load current
< 1 mA is interpreted as cable break. A short circuit of the sensor power supply is also recognized. Each sen-
sor has its own fault detection. A short circuit on one of the sensors leads to a common fault response for all
sensors.
t
<LowerCurrentBorder>
(0x3250)
<anInputMonitoringTime_in_ms>
(0x3251)
Thrown fault code
20 mA
input
Fault code
<anInputMonitoringTime_in_ms>
(0x3251)
Current
monitoring
input
<LowerCurrentBorder>
(0x3250)
AnalogInput
Index Sub-index Parameter name Data type Access Persistence Value range Default
0x3250 0 LowerCurrentBorder FLOAT32 rw Y 2.2…20.0 3.0
AnalogInput
Index Sub-index Parameter name Data type Access Persistence Value range Default
0x3251 0 anInputMonitoringTime_in_ms UINT16 rw Y 0…60000 10