Almost all of actuators’ function can be adjusted (position setting, parameter setting, configuration, diagnosis, etc. ) via control panel, the following example will illustrate a basic technique of setting. This example will be opening valve protective torque set at 50% rating torque. First of all, set mode selector switch to “LOC” (local operation mode), and then follow the flow chart. Please note that the figure includes three operation modes: “save the changes, not save the changes, no changes and return.”
MULTITRAC
Multitrac
The Multitrac range provides Linear, Part-Turn and Multi-Turn versions across a large torque and thrust range. Non intrusive setup with control knob or IR input and variable speed output drive feature as standard.
A wide variety of options are available including explosion-proof, additional programmable switchpac, split control head and programmable limit switches.
Like all Ontrac actuators it can be connected to both Smartrac for comprehensive data analysis and configuration and to our Ontrac Cloud for remote download of actuator parameters and technical information.
- Multi-Turn Torque up to 8100Nm / 5975 ft-lbs
- Part-Turn Torque up to 500000Nm / 368750 ft-lbs
- Thrust up to 185 kN / 41595 lbs
- Standard Proven contactless Hall sensor for position sensing, absolute control optional
The ออนแทร็ก Multitrac electric actuator is a sophisticated yet simple and robust multi-turn actuator.
The Multitrac MME (Multitrac Modulating Electric) 800 range provides (S4) modulating control.
The Multitrac MOE (Multitrac On/Off Electric) 700 range provides (S2) on/off control.
The base Multitrac range can produce from 6-1000 Nm torque. With the addition of ออนแทร็ก gearboxes and adaptors significant increases in torque and thrust are available..
Multi-Turn
Part-Turn
Linear
Options
Control Knob Set Up
The ออนแทร็ก remote setting tool enables the Multitrac actuator to be set up non intrusively via the front panel interface. The arrow keys mimic the front panel control knob actions so allowing the same menu structure to be utilized.
Variable Speed Drive
Frequency Converter Technology
Using a frequency converter in the actuator allows complete control of the motor i.e.: speed and direction of rotation together with torque.
The voltage applied to the motor by the frequency converter determines the output torque, whilst the frequency determines the output speed.
This provides significant benefits over fixed speed drives including:
- Valve protection
The actuator moves to its end position at a fixed low speed, therefore over-torque is avoided due to the low kinetic energy of motor and gears. - High torque
By running at low speed with high torque, the actuator is able to overcome valve blockage without risk of valve damage. - Flexible Commissioning
During commissioning it is useful to have a little free play in terms of output speed and torque – some things look different on site. adjustable speed & torque offers many possibilities for process optimization at a later stage - Reduced spare-parts stock
The ability to configure speed and cut-off torque means that the whole actuator range can be covered by a small number of variants. This simplifies stock keeping of spare actuators and Components and reduces training needs. - Optimum position control
The positioner integrated in the Ontrac actuator utilizes the different speed control capability of the frequency converter: this means that large position changes result in high speed correction, whereas small deviations are adjusted more slowly. - Automatic phase correction – the integrated rectifier works independently of the supply phase sequence
The ออนแทร็ก remote setting tool enables the Multitrac actuator to be set up non intrusively via the front panel interface. The arrow keys mimic the front panel control knob actions so allowing the
Torques given below are for base unit only without additional gearing. Significantly higher torques are achievable with the addition of an Ontrac integrated gearbox.
Ontrac actuators employ a two seal method of protection for protection of electronics. As standard cable glands plus outer seal (1. In picture) prevent water ingress. For further protection, in conjunction with IP68 IP rating an additional double seal ((2. In picture) is installed.