Moog ACV with CANopen bus interface
7 Servo valve functions
Pressure setpoint conditioning / demand value generator
B99224-DV018-D-211, Rev. A, October 2018
160
7.4.3 Limit function
This function limits the value range of the input signal. The limit is defined by setting the upper limit and lower
limit parameters.
Bit 10 of the status word indicates whether the input signal is being limited by this function or not.
Chapter "5.2.3 Object 0x6041: Status word", page 52
Figure 72: Limit function
7.4.3.1 Object 0x63A0: Upper Limit
Chapter "2.4.3 Units and prefix parameter", page 12
7.4.3.2 Object 0x63A1: Lower Limit
Chapter "2.4.3 Units and prefix parameter", page 12
Pressure
limit
input
<LowerLimit>
(0x63A1)
<StatusWord> (0x6041) Bit 10: Limit value reached
<UpperLimit>
(0x63A0)
<UpperLimit>
(0x63A0)
<LowerLimit>
(0x63A1)
output
input
output
The <UpperLimit> (0x63A0) must be greater than the <LowerLimit> (0x63A1).
If the <LowerLimit> (0x63A1) is greater than the <UpperLimit> (0x63A0), the <UpperLimit>
(0x63A0) will be set to the value of the <LowerLimit> (0x63A1).
ValvePositionControl_DemandValueGenerator_Limit
Index
Sub-index
Parameter name
Data type
Access
Per-
sistence
Value range
Default
0x63A0
1
UpperLimit
INT16
rw
Y
<LowerLimit> (0x63A1)…32767
32760
0x63A0
2
Unit
UINT8
ro
-
UINT8
0
0x63A0
3
Prefix
INT8
ro
-
INT8
0
ValvePositionControl_DemandValueGenerator_Limit
Index
Sub-index
Parameter name
Data type
Access
Per-
sistence
Value range
Default
0x63A1
1
LowerLimit
INT16
rw
Y
–32767…<UpperLimit> (0x63A0)
–32760
0x63A1
2
Unit
UINT8
ro
-
UINT8
0
0x63A1
3
Prefix
INT8
ro
-
INT8
0