Moog ACV with CANopen bus interface
7 Servo valve functions
Spool position setpoint conditioning / demand value generator
B99224-DV018-D-211, Rev. A, October 2018
140
7.2.5 Ramp
The ramp function limits the slew rate of the input signal. The <Type> (0x6330) parameter is used to activate
a one-quadrant, two-quadrant or four-quadrant ramp or to deactivate the ramp function.
If the ramp function is running or the ramp function is stopped by the bit 15 (ramp stop) of the #ControlWord#
signal the following <StatusWord> (0x6041) bits are set:
Chapter "5.2.3 Object 0x6041: Status word", page 52
Chapter "5.1.1 Object 0x604F: Local", page 43
Chapter "5.1.2 Object 0x6040: Control word", page 44
Chapter "5.1.3 Object 0x4040: Local control word", page 45
Figure 58: Ramp function
7.2.5.1 Object 0x6330: Type
This parameter defines the slope rate of the ramp dependent on the direction of movement.
Value description
<StatusWord> (0x6041) bit
Description
9
This bit is set if the following conditions are true:
Spool position and/or pressure ramp function is active and
spool position and/or pressure function is running and
#ControlWord# bit 15 is set to false.
15
This bit is set if the following conditions are true:
Spool position and/or pressure ramp function is active and
#ControlWord# bit 15 is set to true.
<StatusWord> (0x6041) Bit 9: Ramp running
<StatusWord> (0x6041) Bit 15: Ramp frozen
#ControlWord#
Bit 15: Ramp stop
Spool position
ramp
input
output
Parameters
<Type>
(0x6330)
ValvePositionControl_DemandValueGenerator_Ramp
Index
Sub-index
Parameter name
Data type
Access
Per-
sistence
Value range
Default
0x6330
0
Type
INT8
rw
Y
0…3
0
<Type>
Description
0
No ramp
1
One-quadrant ramp
2
Two-quadrant ramp
3
Four-quadrant ramp
Table 72: Possible values of parameter <Type> (0x6330)
