bennypass.com - Remote Control & Indication

Remote Control & Indication

IQ range actuators enable remote control and indication of valves for centralised control. Actuator control and indication forms are available to meet the requirements of the various site control systems, from simple manual push-button control through to sophisticated Distributed Control Systems (DCS) using relay outputs or digital “bus” network systems.

Operation	Type	Range	Comments
Open/Close/ Maintain Common	Positive switched 3 x opto-isolated inputs designed for fleeting or maintained contacts	20 - 60 VDC, 40 - 120 VAC	Actuator derived 24 VDC (120 VAC available as an option) or externally supplied derived from the control system. Various forms available.
ESD Open interlock Close interlock Common	Positive switched 3 x opto-isolated inputs designed for maintained contacts	20 - 60 VDC, 40 - 120 VAC	ESD can be user configured open, stayput or close, from an NO or NC contact. ESD has priority over all other applied local or remote control signals. Interlocks provide hardwired “permissive” protection (ie. main and bypass control) and are active for local and remote or may be configured for remote signals only.
Drive enable (option)	Positive switched 1x opto-isolated input. (maintain input)	20 - 60 VDC, 40 - 120 VAC	Maintain input configurable as drive enable: actuator will not operate unless signal is applied.

Option

120 VAC actuator derived supply	5 VA rated	Actuator derived supply for remote control.
125 VDC remote control	20 mA per input	Suitable for 125 VDC remote control supply - positive switching.
Negative switching	20 - 60 VDC	Suitable for negative switched systems applies to open, stop, close, ESD and interlocks.
Analogue control – Option Folomatic	0 to 5/10/20 mA or volt ranges	Proportional control over the whole or part of valve stroke. Configurable for open, close or stayput on loss of analogue signal.
Hydraulic shock 'water hammer'/surge protection– Option Interrupter timer	Internal control system - Interrupter timer	Pulsed operation with independently adjustable on and off time periods in the range 1 - 99 seconds can be selected to operate over any portion of the closing or opening valve stroke, effectively reducing valve speed.

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