Unit Specification
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MCV116C3101 |
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Pressure Control Pilot Valve (PCP) |
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3500 Annapolis Lane North, Minneapolis, MN 55447 |
Intrinsically Safe |
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Telephone: (763) 509-2084 Telefax: (763) 559-0108 ISSUE: 1 |
DATE: July 1998 |
GENERAL DESCRIPTION
This Pressure Control Pilot (PCP) is an intrinsically safe, torque motor-actuated, double-nozzle flapper valve that produces a differential output pressure proportional to the applied electrical input signal. It is a single-stage, stand-alone, closed-loop pressure control valve which uses internal hydraulic pressure reactions to achieve its closed-loop control characteristics. The PCP contains an arc suppression circuit for use in hazardous areas.
The term "intrinsically safe" refers to a design technique based on limiting energy, electrical and thermal, to a level below that required to ignite a specific hazardous atmospheric mixture. This device is Factory Mutual certified for use in Class I, II, or III, Division 1, Group C, D, F, and G hazardous locations as defined by the National Electrical Code, NFPA-70 when used with approved barriers.
DIMENSIONS
78,7 |
(3.10) |
56,1 |
(2.21) |
MS CONNECTOR
DO NOT REMOVE COVER SCREWS (4)
17,5 DIA (2)
(0.69)
MANUAL OPERATOR
NULL ADJUST
ACCESS SCREW
CAUTION
The cover is filled with 45 cc of 4000 cs silicone oil. Ensure that minimal oil is lost when screw is removed.
INTRINSICALLY SAFE DEVICE ENCLOSURE GROUNDING TERMINAL
ELECTRICAL
CONNECTION
D |
A |
Active Pins |
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C |
B |
A, B |
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Pin Orientation of 4-pin,
90° MS Mating Connector.
Part No. MS3108E-14S-S
(Sauer-Danfoss Kit
No. K08106).
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12,7 |
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(0.50) |
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OUTPUT PORT - C1 4,8 (0.19) DIA |
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12,8 (0.50) O.D. X 1,78 (0.07) O-RING |
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REPLACEMENT FILTER |
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PART NUMBER K08573 |
PRESSURE PORT THRU FILTER 5,6 (0.22) DIA |
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12,8 (0.50) O.D. X 1,78 (0.07) O-RING |
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5,5 (0.217) DIA (4) |
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RETURN PORT 4,8 (0.19) DIA |
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12,8 (0.50) O.D. X 1,78 (0.07) O-RING |
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OUTPUT PORT - C2 4,8 (0.19) DIA |
50,8 |
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12,8 (0.50) O.D. X 1,78 (0.07) O-RING |
(2.00) |
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34,9 |
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MAX |
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(1.375) |
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38,1 |
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19,0 |
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(1.50) |
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(0.75) |
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6,3 |
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2,5 (0.10) (2) |
38,1 |
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(1.50) |
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(0.25) |
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3,0 (0.12) |
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70,1 (2.76) |
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9,5 (0.38) |
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76,2 (3.00) |
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95,2 (3.75) |
2023
Dimensions of the MCV116C3101 in Millimeters (Inches).
ELECTRICAL CHARACTERISTICS
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Single coil, coil resistance 23 Ω A |
B |
•Phasing:
Positive voltage to pin A produces a pressure rise at output port C1
Positive voltage to pin B produces a pressure rise at output port C2
•Pulse Width Modulation (PWM)
The PCP is designed to be controlled from a dc current source or voltage source. If a PWM signal is used, do not use a pulse current of more than 120% of that required.
•Scale factor: 1.15 ± 0.1 psid / mA
•Current/voltage range: up to 190 mA at 4.75 Vdc (linear range), maximum 275 mA at 7.5 Vdc
K20493 UNIT SPEC
1 OF 2
©Copyright 2001, Sauer-Danfoss (US) Company. All rights reserved. Contents subject to change.
HYDRAULIC CHARACTERISTICS
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Maximum supply pressure: |
1000 psid |
• Hydraulic Null Adjustment: The PCP null adjustment is |
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Recommended range: 300 - 500 psid |
sometimes required when configured with the servovalve |
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(KVF) or applied as a stand-alone. If the PCP null takes |
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Maximum return pressure: |
200 psid |
an offset of <15 psid (>15 psid, consult factory) across |
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C1 and C2 ports it can usually be reestablished to the |
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Maximum internal leakage: |
0.65 gpm |
original factory setting. To adjust, remove the null access |
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screw (see Dimensions) and with a 3/32 inch hex head |
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Maximum linear psid output pressure: 220 psid at 300 |
Allen wrench locate the adjusting screw just inside the |
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psid supply |
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cover. Turn screw in very small increments until the |
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servovalve neutral is established or C1 and C2 psid is as |
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Load flow: the output differential flow across a 100 psid |
close to 0 as possible. When finished, replace access |
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load pressure drop at maximum current: > 30 cim |
screw. If the PCP is configured with an Electrical |
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Displacement Control (EDC) mounted to a pump, never |
• Hydraulic Fluid: Petroleum based, other fluids may be |
adjust an EDC neutral using the PCP null adjustment. |
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used provided that thy are compatibile with viton and |
EDCs are adjusted at their second stage. |
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fluorosilicone seals. Fluid cleanliness is ISO 4406 code |
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18/15 or better |
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WIRING
A suppression circuit is incorporated in the PCP torque motor cover but by itself does not insure intrinsic safety. An additional suppression circuit (Zener barrier) must be connected in series with the valve coils. The Zener barrier and electrical controller must be isolated from the hazardous area either
through use of a purge enclosure or mounted in a safe area. See Dimensions for PCP enclosure grounding. Proper connection and suggested barrier model numbers are shown in the connection diagram below .
BIDIRECTIONAL CONTROL, SELECT ONE OF THE FOLLOWING BARRIERS
•Stahl Barrier 9001/02-172-270-10 (12V)
Groups A, B, C, D, F and G (maximum voltage ±17.2V)
•Stahl Barrier 9001/02-308-230-10 (26V)
Groups D, E, F and G (maximum voltage ±31.8V)
A |
3 |
(±)1 |
CONTROLLER |
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MCV |
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BARRIER |
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OUTPUT |
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B |
4 |
2 |
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HAZARDOUS LOCATION |
EARTH |
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CLASS I, II, AND III |
GROUND |
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DIVISION 1 |
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NON-HAZARDOUS LOCATION |
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GROUPS C OR D, F AND G |
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UNIDIRECTIONAL CONTROL, SELECT ONE OF THE FOLLOWING BARRIERS
•Stahl Barrier 9001/01-158-270-10 (12V)
Groups A, B, C, D, F and G (maximum voltage 15.8V)
•Stahl Barrier 9001/01-280-280-10 (26V) Groups D, E, F and G (maximum voltage 31.5V)
A |
3 |
(+)1 |
CONTROLLER |
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MCV |
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BARRIER |
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OUTPUT |
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B |
4 |
2 |
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HAZARDOUS LOCATION |
EARTH |
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CLASS I, II, AND III |
GROUND |
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DIVISION 1 |
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NON-HAZARDOUS LOCATION |
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GROUPS C OR D, F AND G |
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1737
NO CHANGES TO THIS DRAWING WITHOUT PRIOR WRITTEN AUTHORIZATION FROM FACTORY MUTUAL.
K20493 UNIT SPEC
2 OF 2