ZIEHL-ABEGG Fcontrol FKDM..-C Series Operating Instructions Manual

Contents

9.2 Back pressure regulation 3.10 ... 3.11 and 3.20 ... 3.21Display in SI units or Imperial units (US)The following description is for display in SI units (factory setting). The appropriate conversion factorsmust be observed when switching over to Imperial units (US) ( menu group Start / US Units).9.2.1 Base setup 3.10 ... 3.11 and 3.20 ... 3.21Main menu Base setupStartSettingProtocolBase setupController SetupBase setup ModeMode selection e.g. 3.103.10ModeBase setup E1 Analog InThe sensor input is factory set for modes of group 3 to sensor type “MBG-7I ”.Measuring range: -1...+7 barOutput signal: 4 - 20 mAConnection terminals: “E1”, “24V”Other settable sensors:• MBG-50I (measuring range 0...50 bar, output signal 4 - 20 mA)• MBG-30I (measuring range 0...30 bar, output signal 4 - 20 mA)• 0 - 10 V, 0 - 20 mA, 4 - 20 mA (for sensors with free measuring range and linearcharacteristic)The sensor measuring range must be entered for sensors with free measuring range inorder to display the actual value correctly.Example 0 - 10 V sensor and measuring range 0 - 20 bar:E1 Analog In = 0 - 10 V, E1 Unit = bar, E1 Decimals = 1, E1 Min. = 0,0 bar, E1 Max. =20,0 barMBG1-7E1 Analog InBase setup E1 OffsetSensor calibration with calibrated comparison device.The current “E1 Actual” is displayed including the offset set here.0.00 barE1 OffsetBase setup E1 RefrigerantWith 3.20 and 3.21 operating modes with input of the refrigerant, the device automati-cally calculates the corresponding temperature for the measured pressure. The set-tings for offset, target value and the controlling range are then carried out in °C or K.Calculation for relative pressure (differential measurement of pressure relative to am-bient pressure). No further settings are necessary for pressure sensors model e.g.“MBG-30I” or “MBG-50I” (measurement range 0 - 30 bar or 0 - 50 bar). In the case ofsensors with other measurement ranges, the “E1 Min. value” and the “E1 Max. Value”.Setting in “bar” although unit display is in “°C”!R407CE1 RefrigerantOperating Instructions Fcontrol – model series FKDM25/32AM-C ProgrammingL-BAL-E214-GB 1446 Index 002 Part.-No.30/99