GOLDCUP CONTROLS CHARACTERISTICS
5
Specifications Typ. Value
Control stop adjustment, 0 to full volume
1A, 2A, 4A, 4C 6.72 Turns
5A, 5C 8.48 Turns
6A, 6C 6.06 Turns
8A, 8C, 9A, 9C 5.04 Turns
Servo response time, 0 to full volume
P6, P7, P8
.9 Seconds
P11, P14
1.5 Seconds
P24, P30
1.8 Seconds
Compensator off stroke response, full to 0 volume.
P6, P7, P8
.050 Seconds
P11, P14
.070 Seconds
P24, P30
.100 Seconds
Servo shaft rotation, 0 to full volume 19 degrees
Fluid connections:
Signal ports, 2A
1/8 Dryseal NPTF
Signal ports, 2H, 60, 6A, 6B, 6C, 8A, 8C
SAE -4 St. Thd. O-ring seal
Brake port, 4B, 4C, 5C, 6B, 6C, 8C, 9C
SAE -6 St. Thd. O-ring seal
Bypass port to system pressure, 4B, 4C, 5C, 6B, 6C
SAE -4 St. Thd. O-ring seal
Bypass port to system pressure, 8C, 9C
SAE -6 St. Thd. O-ring seal
Bypass port to replenishing, 4B, 4C, 5C, 6B, 6C, 8C, 9C SAE -6 St. Thd. O-ring seal
Specifications Typ. Value
Hysteresis Less than 5%
Linearity Within 5%
Response 0.5 seconds, zero to full. (control response)
Temperature null shift Less than 2% per 100° F (38°C)
Deadband 0% or 10%
Input pressure 400 psi (28 bar) nominal, range 200-1000 psi (14-70 bar)
Coil resistance 24 to 30 Ohms
Electrical input Full stroke .275 ma. typ., 400 ma. max., Max. current 600 ma.
Torque for manual operation 20 in.-lb (2.25 Nm) with control pressure shut off.
TABLE 1 TYPICAL CHARACTERISTICS
*5A, 5C CONTROLS
60, 6A, 6B, 6C PUMP CONTROLS
*Note: If the driver uses Pulse Width Modulation, (PWM) the frequency must be 2000 Hz. or higher to avoid erratic operation.
Water Glycol, Phosphate Ester (including Skydrol), and Invert emulsions cannot be used with 5A and 5C controls.
Feature Control press. Control press. Max. hysteresis @ Max. hysteresis @
min. displacement max. displacement min. displacement max. displacement
psi (bar) psi (bar) psi (bar) psi (bar)
00 60-90 (4.1-6.2) 310-360 (21.3-24.8) 30 (2.1) 50 (3.4)
01 60-90 (4.1-6.2) 410-460 (28.3-31.7) 30 (2.1) 50 (3.4)
02 100-120 (6.9-8.3) 350-400 (24.1-27.6) 30 (2.1) 50 (3.4)
03 135-165 (9.3-11.4) 375-425 (25.9-29.3) 30 (2.1) 50 (3.4)
