Schneider Electric MP500C-SR Specification Sheet

Specification Sheet

MP500C-SR

Multi-Signal Spring Return Actuators for VP220x SmartX PIBCV, DN40…100

Product Description

MP500C-SR is a linear electro-mechanical actuator with a spring return function in the event of a power failure for use with the VP220 SmartX PIBCV, DN40…100.

MP500C-SR is controlled by either an increase/decrease floating signal or by a range of modulating control signals between the span of 0…10V.

Specifications

MP500C-SRU	Stem up (retract)
MP500C-SRD	Stem down (extend)
Voltage supply	24 Vac +/- 20% ±20% 50-60Hz
Power consumption
Running	30 VA (21 W)
Rest	7 W
Running Time
Modulating	15 sec.
Increase/decrease	60/300 sec. (selectable)
Spring return	13 sec.
Transformer Sizing	50 VA
Stroke	2…35 mm
Force, nominal	500 N
	20%/60 minutes (full load, high
Duty cycle	amb. temp.) 80%/60 min. (half load,
	room temp.)
Analog input Voltage range	0…10 Vdc
Selectable input signals	0…10, 2…10, 0…5, 2…6,
	5…10, 6…10 Vdc
Impedance	Min. 100 k Ohm
Digital inputs, Y1, Y2
Voltage across open input	24 Vac
Current through closed input	5 mA
Pulse time	min. 20 ms
Output, Y (Feedback)	2…10 Vdc or 0…5 Vdc (0-100%) -
	Load 2 mA
Environmental
Operation and Storage	-10 / +50 °C
Temperature	max 90% RH
Ambient Humidity
Enclosure rating	IP54
Sound power lever	43 dBa

Features

•Brushless DC motor.

•High resolution control board allows precise fluid control.

•Working range and end point switches adjusted automatically to the stroke of the valve.

•When driven electrically, firmware calibrates a consistent running time regardless of the valve stroke.

•On power loss, the mechanical spring return drives the motor, generating power to the board to control spring return braking speed, avoiding mechanical stress and system water hammer.

•Actuators can be configured for either 3 point increase/ decrease signal or various modulating control signals including sequencing.

•The U-Bolt connection allows quick and easy direct mounting onto the SmartX PIBCV VP220 valves.

	Standards
	Emission/Immunity	EMC 2004/108/CE according to EN
		61326-1:2006
	Heat	IEC-68-2-2
	Humidity	IEC-68-2-3
	Cold	IEC-68-2-1
	Vibration	IEC-68-2-6
	Materials
	Max cable core diameter	2.5 mm²
	Direct connection to
	Smart X PIBCV valves	VP220, DN40…100
	S2 Auxillary Switch Relay	SPDT, 24 Vac 4A AC1 (contacts
		made at 5% and 95% of end
	(optional accessory)
		stroke)
	Weight	2.8 Kg

Part Numbers & Accessories

	Part Number	Spring Return Direction	Function on Power
			Failure
	MP500C-SRU	Spring return stem up	Valve Open
	MP500C-SRD	Spring return stem down	Valve Closed
	880-0104-000	S2 auxiliary end point
		switches

© 2016 Schneider Electric. All rights reserved. All trademarks are owned by Schneider Electric Industries SAS or its affiliated companies.	February, 2017 tc
Document Number: F-27945-1

Dimensions (mm)

Function

Actuator

The actuator utilizes a brushless DC motor to accurately position the main spindle via a gearbox depending on the control signal received from the controller. Upon initial start up the and self stroking activation (operation of switch 9) the actuator performs a full stroke cycle to learn the valve end stop positions and to calibrate the motor speed and actuator full stroke running time. End switch point adjustment is also calibrated during this process. In case of power failure the actuator is equipped with spring return function which returns the valve and actuator back to the rest position. The actuator cannot be configured or modified between spring return stem up and spring return stem down.

Control Signal

MP500C-SR actuator can either be controlled by an increase/decrease signal or by a variable direct voltage. The actuator is very flexible regarding the configuration of signal input and a direct or inverse actuation but normally for an increase/decrease the actuator retracts (moves up) on an increase signal and extends (moves down) on a decrease signal.

Spring Pretension

To ensure tight shut off from an assembled SR actuator and control valve for closure on spring return function, it is necessary during installation to align the actuator spindle with the required valve stroke and stroke limits. Refer to Installation Instructions F-27943.

Position Feedback

MP500C-SR actuators are equipped with a 2…10 Vdc and 0…5 Vdc position feedback signal selectable by Sw 1.

End Point Switch (Accessory)

When fitted, the End Point Switch (S2 Auxiliary Switch relay) is calibrated during the initial stroke learning procedure. The switch points electronically make at 5% and 95% of the calibrated stroke position. When actuators are controlled in

normal or sequence control it is possible to use the end point switches to drive other equipment or to signal if the valve is fully open or fully closed.

Maintenance

The actuator does not require any maintenance.

Specification Sheet

Mounting and Installation

Note the presence of an O-ring in the cover of the actuator and ensure it is in position as the cover is removed and replaced. The actuator may be mounted in any position other than upside down.

Maximum actuator ambient temperature is 50 °C (122 °F) for chilled water media. Maximum actuator ambient temperature is 46° C (115° F) when media temperature is 120° C (248° F).

Mounting the Actuator to the Valve

To mount the actuator to a valve, first slide the Actuator Crossbeam Coupler into position on the actuator cross beam bracket. Separately, slide the Valve Stem Coupler onto the Valve Stem. Maintaining the couplers in their positions, slide the actuator onto the valve stem then slide the U-bolt into the actuator groove on the valve neck, securing with nuts provided. Driving the crossbeam coupler down into the valve coupler completes the installation and a “click” sound may be heard as the Valve Coupler locking ring engages the Actuator Crossbeam Coupler.

Manual Operation

To operate the manual override power to the actuator must be disconnected. The manual override procedure allows the actuator to be positioned independently of control signal and can be operated with or without the cover attached. The operating direction of both the manual override and lock screw are clearly labelled on both the cover and inside the actuator, and these labels differ based on if the actuator is purchased SRU or SRD.

Manual override is conducted by using a 5mm hex (Allen) key either S-shaped, L-shaped or T-shaped tool. The action of the manual override is always against the spring tension. The actuator spindle position can be locked against the spring by twisting the lock screw in the direction as shown on the actuator.

The manual override lock should only be released either by nudging the manual override by 10° in the normal direction (against the spring), or re-applying power/control signal

to the actuator. When the actuator is first powered on it will momentarily drive against the spring to release the manual override lock before being driven by an external control signal. If the hex key is left in the hex manual override drive socket, the hex key will rotate as the actuator is driven. This is not recommended and damage could occur if the key is not free to rotate.

1. Manual override drive	2. 1.
socket (5mm hex)

2. Lock screw, flat screwdriver slot

February, 2017 tc	© 2016 Schneider Electric. All rights reserved. All trademarks are owned by Schneider Electric Industries SAS or its affiliated companies.
	Document Number: F-27945-1