MODEL: MRP4
(Sequential control signal suffix code B)
M3 chromated steel
(other terminal box types)
(torque 0.5 N·m)
Housing material: Diecast aluminium
Drive: Stepping motor
Position detection: Potentiometer
Deadband: 0.1 – 4.5 % adjustable (factory set to 1.5 %)
Restarting timer: 0 – 10 sec. adjustable
(factory set to 1.5 sec.)
Isolation: AC power to signal
Zero adjustment: 0 – 25 %
Span adjustment: 50 - 100 %
Protective functions: Overload protection
Power indicator: Green LED turns on with power supplied.
Input indicator: Green LED turns on with normal input
Status indicator LED: Red light blinks in 2 sec. intervals in
normal operations; blinks in 0.5 sec. intervals when a
foreign object is detected mechanically caught inside.
Manual operation: Not available
INPUT SPECIFICATIONS
• DC Current: Input resistor incorporated (250 Ω)
• DC Voltage: 1 – 5 V DC or specific range within 0 – 5 V DC,
minimum span 1 V
(For a current input, convert the current to a voltage with
250 Ω)
Input resistance: Approx. 1 MΩ
• Forced open/close signal:
Dry contact inputs to command clockwise and
counterclockwise turns
Rating: 5 V DC @ 2.5 mA
OUTPUT SPECIFICATIONS
• Operation Time & Torque (at rated power voltage)
MRP4-x4: 7 sec. / 90°; torque 5 N·m (3.69 ft·lbs)
MRP4-x5: 13 sec. / 90°; torque 5 N·m (3.69 ft·lbs)
• Position Output: 1 – 5 V DC (not isolated)
With “direct” action, 5 – 1 V DC position output is provided
proportionally to 4 – 20 mA DC (1 – 5 V DC) input.
Load resistance: ≥ 5 kΩ
• Full-open / -closed signals: Limit switch contact
Rating: 125 V AC @ 0.75 A (cos ø = 1)
30 V DC @ 0.6 A (resistive load)
Mechanical life: 3 × 10
7
cycles
Maximum operation frequency: 60 cycles/min.
• Full-closed/overload signal: Relay contact
Full-closed signal trips at approx. 2 % of span.
Rating: 250 V AC @ 1 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
INSTALLATION
Power Consumption
•AC power input: Approx. 25 VA
•DC power input: Approx. 0.6 A
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 85 %RH (non-condensing)
Vibration: 0.5 G max.
Mounting position: All directions
Do not mount the actuator with its output stem or cable
connector on the upside if the actuator is to be exposed to
dripping water.
Weight
DC powered: 1.1 kg (2.43 lbs)
AC powered: 1.3 kg (2.87 lbs)
Add 0.7 kg (1.54 lbs) for the terminal box.
PERFORMANCE
Resolution: 1/1000 or 0.09°, whichever is greater, with 0.1
% deadband setting
Insulation resistance
•AC powered: ≥ 100 MΩ with 500 V DC
(signal or metallic housing to power)
≥ 100 MΩ with 100 V DC
(signal to metallic housing)
•DC powered: ≥ 100 MΩ with 100 V DC
(signal or power to metallic housing)
Dielectric strength
•AC powered: 1500 V AC @ 1 minute
(signal or metallic housing to power)
100 V AC @ 1 minute
(signal to metallic housing)
•DC powered: 100 V AC @ 1 minute
(signal or power to metallic housing)
STANDARDS & APPROVALS
CE conformity:
EMC Directive (2004/108/EC)
EMI EN 61000-6-4: 2007
EMS EN 61000-6-2: 2005
Low Voltage Directive (2006/95/EC)
EN 61010-1: 2001
Measurement Category II
Pollution Degree 2
Full-open/-closed signal to other, power or metallic
housing: Reinforced insulation (125 V)
TERMINOLOGY
• Overload (Lock) Protection
The Mini-Top Series is equipped with a protection circuit
against overload caused by for example the valve catching
an alien substance.
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
SENTRONIC
AG
