Eltorque QT Series User Manual

Product Description
Page 20 of 86
User Manual QT250 and QT800, ID 2021 2.0 July 2018
QT250
QT800
Operating temperature
With Failsafe option
-25 to 55C/-13 to 131F
0 to 45C/32 to 113F
Temperature protection
Motor current is switched off in case of over-heating.
Power supply
1-phase,110 – 240V AC, 50/60 Hz, Max 240 VA
Power consumption
Opening and closing
with max torque
1
100 VA, PF 0.79
Power consumption
Standby
1
9 VA, PF 0.37
Duty performance
According to AN 15714-
1 / IEC 60034-1
Class A – 10 cycles per hour/52 – 15 min.
Endurance
According to EN 15712-
2
Classes A and B – 10 000 cycles per lifetime.
Cable glands
Up to five M20 glands allows bus connection of power supply and
signal wiring. Use IP68 (10 m 72 hours) cable glands for all wires.
Communication
Interfaces options
CANopen allows positioning and other extended control of the
actuator. The absolute maximum theoretical number of devices allowed
on the bus is 127, but the actual number of nodes is limited by the
baud-rate and the cable quality. Eltorque recommends a maximum of
80 nodes on 500 m/1660ft cable.
Digital 2 DI (Open-Close) and 3 D0 (Open-Close-Alarm.)
Analog Al (Set position) A0 (Feedback position) and D0 (Alarm) (4-20
mA) AI/A0 signal.
Position sensor
Resolution: 360°/12bit = 0.35156°/bit
Integral Non-Linearity (INL): typ. ± 0.8°
Differential Non-Linearity (DNL): ± 0.176°
Output shaft accuracy: 1%
Position feedback not corrupted by power outage.
Configuration
USB connection to PC with Eltorque E3C. Special configuration cable is
needed, see E3C User Manual.
Configurable parameters
Open and Closed positions. Actuator speed, torque and valve position
regions. Inverted IO or bus parameters depending on the applied
communication interface.
Manual operation
Standard feature using fixed hand-wheel. Mechanical valve position
indicator. No need for external tools.
Cover of handwheel
Can be removed and refitted without tools. Protects mechanism against
mechanical damage and foreign objects. The actuator must not be
lifted by the top cover.
Self-lock
The QT250 and QT800 are equipped with a mechanical self-locking
device that locks the valve to the target position when the actuator
movement command is completed.
Certification/type
approval
All valid certificates are listed on www.eltorque.no – support – technical
support – certificates.
1 Earlier versions of the QT250 and QT800 have other values for power consumption, see Table 2:
Product overview on page 8 for information on the correct documentation to consult.

Eltorque QT Series Specifications

General

Brand	Eltorque
Model	QT Series
Category	Controller
Language	English