Related Manuals for Bender CME420 Series
Summary of Contents for Bender CME420 Series
- Page 1 Manual CME420 Multi-functional current relay, AC, overcurrent/undercurrent/ window discriminator function CME420_D00034_03_M_XXEN/08.2020...
- Page 2 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Grünberg • Germany Londorfer Strasse 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-Mail: info@bender.de • www.bender.de © Bender GmbH & Co. KG All rights reserved.
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Page 3: Table Of Contents
Table of Contents 1. Important information ..................5 How to use this manual ................. 5 Technical support: service and support ........... 6 1.2.1 First level support ..................... 6 1.2.2 Repair service ..................... 6 1.2.3 Field service ......................7 Training courses ....................8 Delivery conditions .................. - Page 4 Table of Contents 3.2.9 Password protection (on, OFF) ..............16 3.2.10 Factory setting FAC ..................16 3.2.11 Display accuracy .................... 16 4. Installation and connection ................. 17 5. Operation and setting .................. 19 Used display elements ................. 19 Function of the operating elements ............20 Menu structure ....................
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Page 5: Important Information
1. Important information 1.1 How to use this manual This manual is intended for qualified personnel working in electrical engineering and electronics! Always keep this manual within easy reach for future reference. To make it easier for you to understand and revisit certain sections in this man- ual, we have used symbols to identify important instructions and information. -
Page 6: Technical Support: Service And Support
Important information 1.2 Technical support: service and support For commissioning and troubleshooting Bender offers you: 1.2.1 First level support Technical support by phone or e-mail for all Bender products Questions concerning specific customer applications Commissioning Troubleshooting ... -
Page 7: Field Service
Important information 1.2.3 Field service On-site service for all Bender products Commissioning, configuring, maintenance, troubleshooting of Bender products Analysis of the electrical installation in the building (power quality test, EMC test, thermography) Training courses for customers ... -
Page 8: Training Courses
ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e. V.) (German Electrical and Electron- ic Manufacturer's Association) also applies. Sale and delivery conditions can be obtained from Bender in printed or elec- tronic format. 1.5 Inspection, transport and storage Inspect the dispatch and equipment packaging for damage, and compare the contents of the package with the delivery documents. -
Page 9: Warranty And Liability
Important information 1.6 Warranty and liability Warranty and liability claims in the event of injury to persons or damage to property are excluded if they can be attributed to one or more of the follow- ing causes: Improper use of the device. ... -
Page 10: Disposal
13 August 2005 must be taken back by the manufacturer and disposed of properly. For more information on the disposal of Bender devices, refer to our homepage at www.bender.de -> Service & support. -
Page 11: Safety Instructions
2. Safety instructions 2.1 General safety instructions Part of the device documentation in addition to this manual is the enclosed "Safety instructions for Bender products". 2.2 Work activities on electrical installations Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system. -
Page 12: Intended Use
Safety instructions 2.3 Intended use The current monitor is designed to monitor the threshold values of AC cur- rents for overcurrent and undercurrent conditions. In case of direct measure- ment, currents up to 16 A (screw-type terminals) resp. 12 A (push-wire terminals) can be continuously monitored. -
Page 13: Function
3. Function 3.1 Device features Undercurrent or overcurrent monitoring in AC systems, < I or > I and current monitoring with window discriminator function Indirect current monitoring by means of a current transformer, suitable for transformation ratio factor 1…2000 Adjustable switching hysteresis ... -
Page 14: Automatic Self Test
E.03…E.32 Carry out a reset. Reset the device to fac- tory setting. After eliminating the fault, the error code will be automatically deleted. If the fault continues to exist, please contact the Bender Service. CME420_D00034_03_M_XXEN/08.2020... -
Page 15: Specify The Number Of Reload Cycles
Function 3.2.4 Specify the number of reload cycles If faults occur only temporarily, but recurrently, in the system being monito- red, with deactivated fault memory M, the alarm relays would switch synchro- nously to the error status. RL in the out menu can be used to limit the number of these changeover pro- cesses. -
Page 16: Time Delays T, Ton And Toff
Function 3.2.8 Time delays , The times t, t and t described below delay the output of alarms via LEDs and relays. Starting delay After connection to the supply voltage U , the alarm indication is delayed by the preset time t (0…300 s). Response delay on1/2 If the current value exceeds or falls below the threshold value, the current mo-... -
Page 17: Installation And Connection
4. Installation and connection Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system. Risk of electrocution due to electric shock! Touching live parts of the system carries the risk of: An electric shock ... - Page 18 Installation and connection The front plate cover is easy to open at the lower part identified by an arrow. 1. DIN rail mounting: Snap the rear mounting clip of the device into place in such a way that a safe and tight fit is ensured. Screw fixing: Use a tool to move the rear mounting clips (a second mounting clip required, see ordering information) to a position that it projects over...
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Page 19: Operation And Setting
5. Operation and setting 5.1 Used display elements A detailed description of the meaning of the display elements is given in the table below. Used display elements Function Element Reload function with memory = off (L = I.) Transformation ratio factor for external current transformer <I Undercurrent... -
Page 20: Function Of The Operating Elements
Operation and setting 5.2 Function of the operating elements Device front Function Element Power On LED, green AL1, LED Alarm 1 lights (yellow): Response value 1 reached LED Alarm 2 lights (yellow): Res- ponse value 2 reached 1,6 A, I = 1.6 A flow via AL1 AL2 the terminals k and l, Fault memory active... -
Page 21: Menu Structure
Operation and setting 5.3 Menu structure All adjustable parameters are listed in the columns menu item and adjustable parameters. A display-like representation is used to illustrate the parameters in the column menu item. Different alarm categories can be assigned to the alarm relays K1, K2 via the submenus r1, r2. -
Page 22: Display In Standard Mode
Operation and setting Menu Menu Activation Adjustable parameter menu item I 12 Setting ranges: High, window function, Transformation ratio factor external current transformer (device con- trol) Parameter setting via password Re-establish factory settings Function blocked Display hard / software version History memory for the first alarm value, erasa- Display in standard mode... -
Page 23: Display In Menu Mode
Operation and setting 5.5 Display in menu mode 5.5.1 Parameter query and setting: overview Menu Adjustable parameter item Response values query and setting: – Alarm I2 (AL2), (undercurrent, overcurrent or window function can be set in the SEt/I menu) – Prewarning I1 (AL1), (50 % of I2) –... - Page 24 Operation and setting Menu structure t >1,5 s t > 1,5 s t < 1,5 s t < 1,5 s t > 1,5 s CME420_D00034_03_M_XXEN/08.2020...
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Page 25: Switching Over From Overcurrent To Undercurrent Operation
Operation and setting Parameter settings An example is given below on how to change the alarm response value for overcurrent > I1. It is presumed that the option overcurrent (HI) has been se- lected in the SEt/I menu (factory setting). Proceed as follows: 1. -
Page 26: Response Value Setting For Overcurrent
Operation and setting 5.5.3 Response value setting for overcurrent: - Response value I2 (overcurrent) - Response value I1 (overcurrent) - Hysteresis (Hys) of the response values I1, I2 Increasing the response value I2 (Example: overcurrent) Increasing the response value I1 (prewarning overcurrent) Setting the hysteresis of the response value CME420_D00034_03_M_XXEN/08.2020... -
Page 27: Setting The Fault Memory And Operating Principle Of The Alarm
Operation and setting 5.5.4 Setting the fault memory and operating principle of the alarm relays Deactivating the fault memory Setting the alarm relay K1 to N/O operation (n.o.) Setting the number of reload cycles >1,5 s CME420_D00034_03_M_XXEN/08.2020... -
Page 28: Assigning Alarm Categories To The Alarm Relays
Operation and setting 5.5.5 Assigning alarm categories to the alarm relays Overcurrent, undercurrent and device-related errors of the current monitor can be assigned to the alarm relays K1 (r1, 1) and K2 (r2, 2). By default, the alarm relays K1 and K2 signal prewarning and alarm in case of overcurrent. Alarm relay K1: Deactivating the category device error >1,5 s Alarm relay K1: Deactivating the category response value I1... - Page 29 Operation and setting Alarm relay K1: Activating the category response value I2 >1,5 s Alarm relay K1: Deactivating the category device test >1,5 s When an alarm relay (K1/K2) has been deactivated in the menu, an alarm will not be signalled by the respective changeover contact! An alarm will only be indicated by the CAUTION respective alarm LED (AL1/AL2)!
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Page 30: Setting The Time Delays
Operation and setting 5.5.6 Setting the time delays The following delays can be specified: Response delay t (0…300 s) for K1, and t (0…300 s) for K2 Starting delay t (0…10 s) when the device is being started ... -
Page 31: Changing From Overcurrent Operation To Window Operation
Operation and setting Setting the starting delay >1,5 s 5.5.7 Changing from overcurrent operation to window operation Use this menu item to set whether the response values of the device apply to overcurrent (HI) or undercurrent operation (Lo). In addition, window operati- on (In) can be selected. -
Page 32: Setting The Transformation Ratio For External Current Transformer
Operation and setting 5.5.8 Setting the transformation ratio for external current transformer >1,5 s Factory setting and password protection Use this menu to activate the password protection, to change the password or to deactivate the password protection. In addition, you can reset the device to its factory settings. - Page 33 Operation and setting b) Changing the password >1,5 s c) Deactivating the password protection >1,5 s CME420_D00034_03_M_XXEN/08.2020...
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Page 34: Re-Establishing The Factory Settings
Operation and setting 5.5.9 Re-establishing the factory settings ..Device information query This function is used to query the hardware (d…) and software (1.xx) versions. After activating this function, data will be displayed as a scrolling text. Once one pass is completed you can select individual data sections using the Up/ Down keys. -
Page 35: Commissioning
Operation and setting 5.6 Commissioning Prior to commissioning, check proper connection of the current relay. Danger of fire! Please note the maximum permissible measuring current continuously applied is in case of direct measurement: Push-wire terminals: 12 A DANGER Screw-type terminals: 16 A Factory setting Response value overcurrent I1 (prewarning) 5 A (50 % of I2) -
Page 36: Timing Diagram: Current Monitoring
Operation and setting 5.8 Timing diagram: Current monitoring Start Überstrom/ Unterstrom/ Overcurrent Undercurrent t off Dt < t an t off Dt < t an t an t an t an t an Strom/ > I Current < I Versorgungsspannung/ Supply voltage Alarm-LEDs „ON“... -
Page 37: Technical Data
6. Technical data 6.1 Data in tabular form ( )* = factory setting Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Rated insulation voltage ............................250 V Rated impulse voltage/overvoltage category......................4 kV/III pollution degree ................................3 Protective separation (reinforced insulation) between......(A1, A2) - (k, l) - (11, 12, 14) - (21, 22, 24) Maximum nominal voltage of the system being monitored when the conductor being monitored is directly connected: With protective separation.......................... - Page 38 Technical data Screw-type terminal........................AC 0.1…16 A (1 A)* or external current transformer Undercurrent < I (prewarning ) ..................100 %…200 % (150 %)* Overcurrent Overcurrent > I (alarm ), direct connection: Push-wire terminal........................AC 0.1…12 A (1 A)* Screw-type terminal........................AC 0.1…16 A (1 A)* or external current transformer Overcurrent >...
- Page 39 Technical data Switching elements Number ..................2 relays, with one changeover contact each (K1, K2) Operating principle............N/C operation n.c./N/O operation n.o. (N/C operation n.c.)* Electrical service life under rated operating conditions............ 10000 switching operations Contact data acc. to IEC 60947-5-1: Utilization category ............
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Page 40: Standards, Approvals And Certifications
Technical data Connection ..........................push-wire terminals Connection properties: rigid ..........................0.2…2.5 mm /AWG 24…14 flexible without ferrule ..................... 0.75…2.5 mm /AWG 19…14 flexible with ferrule...................... 0.2…1.5 mm /AWG 24…16 Stripping length ..............................10 mm Opening force................................50 N Test opening, diameter ............................2.1 mm Other Operating mode ........................... -
Page 41: Ordering Information
Technical data 6.3 Ordering information Response Supply voltage Device type Art. No. value CME420-D-1 DC 9.6 V…94 V / 0.1…16 A x n B93060001 AC 42…460 Hz, 16…72 V B93060001W (screw-type terminal) CME420-D-1 DC 9.6 V…94 V / 0.1…12 A x n B73060001 AC 42…460 Hz, 16…72 V B73060001W (push-wire terminal) - Page 42 Technical data CME420_D00034_03_M_XXEN/08.2020...
- Page 43 INDEX Adjustable parameters, list 21 LED Alarm 1 lights 20 Automatic self test 14 LED Alarm 2 lights 20 Deleting the fault alarms 20 Malfunction 14 Device features 13 Manual self test 14 Display in standard mode 22 Menu - AL (response values) 21 - HiS (history memory for the first Enter key 20 alarm value) 22...
- Page 44 Parameter query and setting, overview 23 Used display elements 19 Parameter setting - Activating or deactivating the pass- Wiring diagram 18 word protection 32 Work activities on electrical installations 11 - Assigning alarm categories to the workshops 8 alarm relays 28 - Changing from overcurrent opera- tion to window operation 31 - Deactivating the fault memory 27...
- Page 48 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Grünberg • Germany Londorfer Strasse 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-Mail: info@bender.de • www.bender.de Group Photos: Bender archives...