Danfoss MCV116C3101 Installation guide

Unit Specification

	MCV116C3101
	Pressure Control Pilot Valve (PCP)
3500 Annapolis Lane North, Minneapolis, MN 55447	Intrinsically Safe
Telephone: [phone] Telefax: [phone] 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
C	B	A, B
		2009

Pin Orientation of 4-pin,

90° MS Mating Connector.

Part No. MS3108E-14S-S

(Sauer-Danfoss Kit

No. K08106).

				12,7
				(0.50)		OUTPUT PORT - C1 4,8 (0.19) DIA
						12,8 (0.50) O.D. X 1,78 (0.07) O-RING
				REPLACEMENT FILTER
				PART NUMBER K08573		PRESSURE PORT THRU FILTER 5,6 (0.22) DIA
						12,8 (0.50) O.D. X 1,78 (0.07) O-RING
				5,5 (0.217) DIA (4)		RETURN PORT 4,8 (0.19) DIA
						12,8 (0.50) O.D. X 1,78 (0.07) O-RING
						OUTPUT PORT - C2 4,8 (0.19) DIA
50,8						12,8 (0.50) O.D. X 1,78 (0.07) O-RING
(2.00)			34,9
MAX		(1.375)
	38,1			19,0
	(1.50)
				(0.75)
6,3				2,5 (0.10) (2)	38,1
					(1.50)
(0.25)
				3,0 (0.12)		70,1 (2.76)
				9,5 (0.38)		76,2 (3.00)
						95,2 (3.75)

2023

Dimensions of the MCV116C3101 in Millimeters (Inches).

ELECTRICAL CHARACTERISTICS

•

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

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©Copyright 2001, Sauer-Danfoss (US) Company. All rights reserved. Contents subject to change.

HYDRAULIC CHARACTERISTICS

•	Maximum supply pressure:	1000 psid	• Hydraulic Null Adjustment: The PCP null adjustment is
	Recommended range: 300 - 500 psid		sometimes required when configured with the servovalve
			(KVF) or applied as a stand-alone. If the PCP null takes
•	Maximum return pressure:	200 psid	an offset of <15 psid (>15 psid, consult factory) across
			C1 and C2 ports it can usually be reestablished to the
•	Maximum internal leakage:	0.65 gpm	original factory setting. To adjust, remove the null access
			screw (see Dimensions) and with a 3/32 inch hex head
•	Maximum linear psid output pressure: 220 psid at 300		Allen wrench locate the adjusting screw just inside the
	psid supply		cover. Turn screw in very small increments until the
			servovalve neutral is established or C1 and C2 psid is as
•	Load flow: the output differential flow across a 100 psid		close to 0 as possible. When finished, replace access
	load pressure drop at maximum current: > 30 cim		screw. If the PCP is configured with an Electrical
			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.
	used provided that thy are compatibile with viton and		EDCs are adjusted at their second stage.
	fluorosilicone seals. Fluid cleanliness is ISO 4406 code
	18/15 or better

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
	MCV		BARRIER
				OUTPUT
	B	4	2
	HAZARDOUS LOCATION	EARTH
	CLASS I, II, AND III	GROUND
	DIVISION 1		NON-HAZARDOUS LOCATION
	GROUPS C OR D, F AND G

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
	MCV		BARRIER
				OUTPUT
	B	4	2
	HAZARDOUS LOCATION	EARTH
	CLASS I, II, AND III	GROUND
	DIVISION 1		NON-HAZARDOUS LOCATION
	GROUPS C OR D, F AND G

1737

NO CHANGES TO THIS DRAWING WITHOUT PRIOR WRITTEN AUTHORIZATION FROM FACTORY MUTUAL.

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