Parker VRD355 Series - Parameter List

Digital Power Amplifier
Series VRD350 and VRD355Installation Manual
35
IA VRD UK.INDD RH 02.06
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Parameter Description Unit Display
S1 - S4
Command signals as voltage V 0...9.99
S5 - S8
Ramp time in seconds s 0...39.5
H1, H2
Command signal simulation (set value as voltage) V ± 0...9.99
P1
Offset V 0...+2.99 / 0...-2.99
P2
Linearisation (not active / active) - 0 / 1...5
P3
Gain factor for solenoid A - 0.00...2.00
P4
Gain factor for solenoid B - 0.00...2.00
P5
Dither amplitude V 0.00...3.03
P6
Dither frequency Hz 0...647 (in steps)
P7
Step function for solenoid A A 0.00...0.81/ 2.7 / 3.5
P8
Step function for solenoid B A 0.00...0.81/ 2.7 / 3.5
P9, P10
Initial current for solenoid A and B (0,8A / 2,7A / 3,5A) mA -205...+183, -704...+630, -917...+821
P11
Command signal (not invertied / inverted) - 1 / -1
P12
Feedback value (not invertied / inverted) - 1 / -1
P13
P-portion (K
P,1
) for control deviation ≤ threshold P15
(or bypass with E2 = 3)
- 0...255
P14
T-portion of PT-element V 0...255
P15
Threshold for switch over to K
P,2
(0...10V) V 0.00...9.99
P16
P-portion (K
P,2
) for control deviation > threshold P15 - 0...255
P17
I-portion - 0...255
P18
D-portion - 0...255
P19
T-portion of DT
1
-element - 0...255
P20
Gain for feedback signal - 0.00...2.00
P21
Window [Set-feedback] < 0 V 0.00...9.99
P22
Window [Set-feedback] > 0 V 0.00...9.99
P23
Time delay (into window) s 0.00...9.96
P24
Time delay (out of window) s 0.00...9.96
E1
Reserved - 0 / 1
E2
Operating mode (only with feedback option)
Open- /closed loop (internal/external, bypass, safety function)
- 0 / 1...4
E3
Solenoid type - 1...7
E4
P-portion current control, control deviation > 0 (energ.) - 0...255
E5
I-portion current control, control deviation > 0 (energ.) - 0...255
E6
P-portion current control, control deviation < 0 (deenerg.) - 0...255
E7
I-portion current control, control deviation < 0 (deenerg.) - 0...255
E8
Ramp change (constant rise rate / constant time base
- only for internal set values S1-S4))
- 1 / 0
E9
Time delay for enable signal (0...10s) s 0.00...9.99
E10
Reserved - 0...255
E11
Type of feedback transducer (only when feedback option is
selected in)
- 1...10
E12
Cable fracture detection (only when feedback option is selec-
ted in (active / not active))
- 1 / 0
E13
Serial Interface (active / not active) - 1 / 0
E14
Factor for P13 and P16 (only when feedb.op.is sel.) - 0...16
E15
Select load / store (only accessible for VRD355) - L... / S...
E16
Activates load/store E15 (only with VRD355) - ...S or ...L (run)
6. Parameter List