Manual 35132
VariStroke-DX Duplex Hydraulic Servo Skid
Woodward
16
Chapter 2.
System Specifications
Table 2-1. Environmental
Ambient Temperature: Without Junction Box –40 to +85°C (-40 to + 185
⁰
F)
With Junction Box –30 to +85°C (-22 to + 185
⁰
F)
Oil Temperature: +15 to +70°C (+59 to 158
⁰
F) continuous
Oil Viscosity: 10 to 55 centistokes
Vibration: US MIL-STD 810F, M514.5A, Cat. 4 (0.015 G²/Hz, 10 to 500 Hz,
1.04 Grms)
Shock: US MIL-STD-810C method 516.2, procedure 1 (10 G Peak, 11 ms
duration, saw tooth)
Ingress Protection: IP66 per IEC EN 60529 with IECEx conditioning as described by
IEC 60079-0:2011 and IEC 60079-15:2010
PENDING IECEx
certification
Table 2-2. Physical
Height x Width x Depth: Approx. (725.7 x 968.2 x 632.0) mm / (28.51 x 38.12 x 24.88) inch
Weight: Approx. 184 kg (405 lbs) without oil
Mounting: 4x .625-11 UNF threaded holes (see Figure 1-5)
Table 2-3. Electrical Specifications
Connections: Electrical box terminals suitable for:
(0.14 to 6) mm² / (26 to 10) AWG stranded wire (power and ground
terminals)
(0.2 to 4) mm² / (24 to 12) AWG stranded wire (communication signal
terminals)
Junction box Cable Entries: 4 x 3/4 NPT CONDUIT HUB
Supply Voltage (18 to 32) V (dc), 24 V (dc) nominal (recommended cable size
6 mm² / 10 AWG)
Grounding connections: PE ground (recommended cable size 6 mm² / 10 AWG)
Hold-up time: 7 ms @ 2 A (dc) LAT current
Current Consumption: 2.3 A (MAX) at steady state @ 24 V 10 A transient (100 ms maximum)
Demand Signals #1, 2: (4 to 20) mA into 200
Ω
. >70 dB CMRR. Common Mode Voltage Range
±50 V (dc), Accuracy 0.1% of full scale @ 25 °C
Cylinder Position
Feedback Signals #1, 2:
(4 to 20) mA into 235
Ω
. >70 dB CMRR
Common Mode Voltage Range ±50 V (dc), Accuracy 0.1% of
full scale @ 25 °C
Analog Output Signal (4 to 20) mA. Maximum external load: 500
Ω
Accuracy ±0.5 % of full
scale @ 25 °C
Discrete Output Signal Configurable for NO or NC,
0.5 A at 24 V (dc), max. 32 V (dc)
0.5 A inductive at 28 V (dc) 0.2 Henry
Discrete Input Signal: Contact current 3.8 mA (typ.) @ input closed
Max input voltage 32 V (dc), High signal threshold > 7 V; Low signal
Threshold < 3 V
Released
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