Schneider Electric MP500C-SR Specification Sheet
MP500C-SR
Multi-Signal Spring Return Actuators
for VP220x SmartX PIBCV, DN40…100
Specification Sheet
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
MP500C-SRD
Voltage supply 24 Vac +/- 20% ±20% 50-60Hz
Power consumption
Running
Rest
Running Time
Modulating
Increase/decrease
Spring return
Transformer Sizing 50 VA
Stroke
Force, nominal 500 N
Duty cycle
Analog input Voltage range
Selectable input signals
Impedance Min. 100 k Ohm
Digital inputs, Y1, Y2
Voltage across open input
Current through closed input
Pulse time
Output, Y (Feedback) 2…10 Vdc or 0…5 Vdc (0-100%) -
Environmental
Operation and Storage
Temperature
Ambient Humidity
Enclosure rating IP54
Sound power lever 43 dBa
20%/60 minutes (full load, high
amb. temp.) 80%/60 min. (half load,
0…10, 2…10, 0…5, 2…6,
Stem up (retract)
Stem down (extend)
30 VA (21 W)
7 W
15 sec.
60/300 sec. (selectable)
13 sec.
2…35 mm
room temp.)
0…10 Vdc
5…10, 6…10 Vdc
24 Vac
5 mA
min. 20 ms
Load 2 mA
-10 / +50 °C
max 90% RH
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
Heat
Humidity
Cold
Vibration
Materials
Max cable core diameter 2.5 mm²
Direct connection to
Smart X PIBCV valves VP220, DN40…100
S2 Auxillary Switch Relay
(optional accessory)
Weight 2.8 Kg
Part Numbers & Accessories
Part Number Spring Return Direction
MP500C-SRU Spring return stem up Valve Open
MP500C-SRD Spring return stem down Valve Closed
880-0104-000
S2 auxiliary end point
switches
EMC 2004/108/CE according to EN
61326-1:2006
SPDT, 24 Vac 4A AC1 (contacts
made at 5% and 95% of end
Function on Power
Failure
IEC-68-2-2
IEC-68-2-3
IEC-68-2-1
IEC-68-2-6
stroke)
© 2016 Schne ider Ele ctric. All rights rese rved. All trademar ks are owned by Schneider El ectric Indust ries S AS or its a ffil iated companie s. Februa ry, 2017 tc
Docume nt Numbe r: F-279 45-1
Specification Sheet
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.
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.
Maintenance
The actuator does not require any maintenance.
Februa ry, 2017 tc © 2016 Schne ider Ele ctric. All rights rese rved. All trademar ks are owned by Schneider El ectric Indust ries S AS or its a ffil iated co mpanie s.
Document Number: F-27945 -1
1. Manual override drive
socket (5mm hex)
2. Lock screw, flat
screwdriver slot
1.
2.
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