Product Description
The safety-related F35 controller is a compact system located in a metal enclosure with 24 digital inputs, 8 digital outputs, 2 counters, and 8 analog inputs.
Safety Function
The controller is equipped with safety-related digital inputs and outputs, safety-related counters and safety-related analog inputs.
Safety-Related Digital Inputs
The controller is equipped with 24 digital inputs. The state (HIGH, LOW) of each input is signaled by an individual LED.
The input signals are captured as analog measurements and provided to the program as a range of INT values from 0...3000 (0...30 V). Configurable thresholds are used to generate BOOL values; see Table 26
The default setting is:
Low level: < 7 V High level: > 13 V
The thresholds are set using system parameters, taking the safety-related accuracy into account; see Table 43 and Table 44.
The LEDs for the digital inputs are activated by the program if the F35 is in RUN.
Mechanical contacts without their own power supply or signal power source can be connected to the inputs. Potential-free mechanical contacts without their own power supply are fed via an internal short-circuit-proof 24 V power source (LS+). Each of them supplies a group of 8 mechanical contacts. Figure 1 shows how the connection is performed.
Reaction in the Event of a Fault: If the device detects a fault on a digital input, the user program processes a low level in accordance with the de-energized-to-trip principle. The device activates the FAULT LED. In addition to the channel signal value, the user program must also consider the corresponding error code. The error code allows the user to configure additional fault reactions in the user program.
Line Control: Line control cannot be configured for the F35 system, e.g., on EMERGENCY STOP inputs complying with Cat. 4 in accordance with EN 954-1. Line monitoring for digital outputs is possible; see chapter 3.1.4.1.
Safety-Related Digital Outputs: The controller is equipped with 8 digital outputs. The state (HIGH, LOW) of each output is signaled by an individual LED. At the maximum ambient temperature, each of the outputs 1...3 and 5...7 can be loaded with 0.5 A, and outputs 4 and 8 can be loaded with 1 A or 2 A at an ambient temperature of up to 50 °C.
Reaction in the Event of a Fault: If the device detects a faulty signal on a digital output, the affected module output is set to the safe (de-energized) state using the safety switches.
Safety-Related Counter The controller is equipped with 2 independent counters with inputs that can be configured for 5 V or 24 V voltage levels.
Safety-Related Analog Inputs
The controller is equipped with 8 analog inputs with transmitter supplies for the unipolar measurement of voltages of 0...10 V, referenced to L-. With a shunt, currents of 0... 20 mA can also be measured.
The resolution of the voltage and the current values depends on the parameter set in the properties of the controller.
In SILworX, the FS 1000 / FS 2000 system parameter can be selected in the Module tab (Module of the digital and analog inputs MI 24/8). Depending on the selection, different resolutions result in the user program for the -> Value [INT] system parameter; see Chapter 4.3.4.1. To monitor the -> Value [INT] parameter, evaluate the corresponding -> Error Code [BYTE] fault value in the user program.
In ELOP II Factory, set the 1000 resolution (MI 24/8 FS 1000) or 2000 resolution (MI 24/8 FS 2000) in the Type field (menu: Properties, module: Analog Inputs). Depending on the selection, different resolutions result in the user program for the AI[xx]. Value system parameter; see Chapter 4.4.4. To monitor the AI[xx]. Value parameter, evaluate the corresponding AI[xx].Error Code parameter in the user program.
The input signals are evaluated in accordance with the de-energized-to-trip principle.
Only shielded cables with a length of a maximum of 300 m must be connected to the analog inputs. Each analog input must be connected to a twisted pair of wires. The shielding must be connected to the controller and the sensor housing and earthed at one end to the controller side to form a Faraday cage.
Unused analog inputs must be short-circuited.
If an open circuit occurs during voltage measurement (the line is not monitored), any input signals are processed on the high-resistance inputs. The value resulting from this fluctuating input voltage is not reliable. Therefore, with voltage inputs, the channels must be terminated by a 10 kΩ resistor. The internal resistance of the source must be taken into account.
For a current measurement with the shunt connected in parallel, the 10 kΩ resistor is not required.
The analog inputs have a common ground, L-.
The analog inputs are designed to retain the metrological accuracy for 10 years. A recalibration must be carried out every 10 years.
Line Monitoring for Digital Outputs
The analog inputs can be used to monitor the digital outputs for short circuits and open circuits.
Reaction in the Event of a Fault
If the device detects a fault on an analog input, the AI. Error Code system parameter > 0 is set. In case of module faults, the Mod. Error Code system parameter > 0 is set.
Equipment, Scope of Delivery
The available components and their part numbers are listed below:
F35 01
F35 011 (-20 °C)
F35 012 (subsea / -20 °C)
F35 01 SILworX
F35 011 SILworX (-20 °C)
F35 012 SILworX (subsea / -20 °C)
