Hettich ROTINA 35 R Repair Instructions
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Hettich ROTINA 35 R Repair Instructions

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Repair instructions
ROTINA 35 / 35 R
09.05
Andreas Hettich GmbH & Co. KG
AR026GB

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  • Page 1 Repair instructions ROTINA 35 / 35 R 09.05 Andreas Hettich GmbH & Co. KG AR026GB...
  • Page 2 (07461) 705-0 (07461) 705-125 info@hettichlab.com, service@hettichlab.com www.hettichlab.com © 1999 by Andreas Hettich GmbH & Co. KG All rights reserved. No part of this publication may be reproduced without the written prior permission of the copyright owner. Modifications reserved! AR026GB / 09.05...

  • Page 3: Table Of Contents

    Contents Introduction ......................7 Description of the new Hettich centrifuges ............8 Functional structure of the ROTINA 35 / 35 R........... 8 Control panel (CP) .................... 8 Supply board (SB)..................... 9 Frequency converter (FC) ................. 9 Special features ....................10 Motor / Tacho system..................
  • Page 4 Appliance plug B1, overvoltage protection F1..........36 7.15 Imbalance switch .................... 36 7.16 Fan M5 for the motor (only ROTINA 35 R) ............. 36 7.17 Temperature sensor B1 in centrifuge chamber..........36 7.18 Temperature sensor B2 at condenser ............36 7.19...
  • Page 5 Circuit diagrams....................40 Mains supply with supply board (SB) 230 V............ 40 Mains supply with supply board (SB) 115 V............ 41 Circuit diagram supply board (SB) ..............42 Connecting diagram and component layout supply board (SB) ...... 43 Signals at control cable (between CP-SB) ............44 Block diagram control panel (CP)..............
  • Page 6 Abbreviations Control panel Frequency converter Supply board Cooling board Control cable Lid locking Braking chopper Brake resistor Mains reset, mains switch OFF - ON Error cause Error consequence Error remedy Measurements Error-code reset 6/51...

  • Page 7: Introduction

    Interventions and modifications at centrifuges, which have been conducted by persons not authorized by the HETTICH company, are at their own risk and entail the loss off all guarantee and liability claims. In such an event any guarantee claim or liability claim against the HETTICH company expire.

  • Page 8: Description Of The New Hettich Centrifuges

    • Motor with speed sensor (speedometer) • Braking chopper (BC) with brake resistor (BR) • Lid locking (LL) • Cooling board (CB), only Rotina 35 R Control panel (CP) The CP is the ”brain” or ”master” of the centrifuge. Via a serial data bus system, the MASTER controls its SLAVE, the component: −...

  • Page 9: Supply Board (Sb)

    • 12 V DC and 5 V DC supply for the SB. • 12 V DC supply for the CP. • 12 V DC supply for the CB (only Rotina 35 R). • Plugging station X5 for mains power supply, LL magnet and transmission of the signalling circuit for LL-switch (open/closed over opto-coupler to the CP).

  • Page 10: Special Features

    • The CP issues the following via the serial interface: − Speed − Starting and braking levels − Control commands START, BRAKE, STOP • State display by LED´s: In standby mode the green LED is on In running mode the green LED is on In fault mode the green LED flashes If the FC processor detects a fault, it shuts down itself automatically and triggers the...

  • Page 11: Imbalance Switch

    Imbalance switch • A switch detects any imbalance. • Imbalance can only be detected in running mode (starting, centrifuging and braking). • If any imbalance is detected, the drive is changed over to braking. Interlocking • Opening of the LL is prevented by a latch. The LL can only be opened when the relay on the SB is energized by the CP.

  • Page 12: Offset Calibration

    2.11 Offset calibration • Offset calibration is performed in order to equalize the tolerances of the temperature sensor and the electronics. Perform Offset calibration Where/How when replacing: − the temperature sensor calibrate the temperature sensor. − the CP calibrate temperature sensor and read out the old offset values and put them in the new CP.

  • Page 13: Troubleshooting Procedures

    Troubleshooting procedures • Fuses in installation in which centrifuge is installed are intact. • Supply voltage present at (see circuit diagram): − Connecting cable − Appliance plug − Overvoltage protection (F1) − Mains switch (Q1) − Supply board, plug X5 (PIN 1, PIN 5). •...

  • Page 14: Error Messages

    Error messages Brief description • Error messages in: ROTINA 35 ROTINA 35 R Error designation Brief description Page TACHO-ERROR Speedometer pulses break down during rotation TACHO-ERROR No speedometer pulses after start command IMBALANCE Imbalance on motor axle CONTROL-ERROR LL error, lid opened without recognizing that motor had stopped N >...
  • Page 15 Error designation Brief description Page No cooling Overtemperature at condenser (No error displayed) °C / *-ERROR Overtemperature in centrifuge chamber °C / *-ERROR Temperature sensor in centrifuge chamber is defective FU/CCI-ERROR Faulty release signal to FC FU/CCI-ERROR FC - error: computing section FU/CCI-ERROR FC - error:...

  • Page 16: Description And Elimination Of Errors

    Description and elimination of errors TACHO - ERROR 01 During centrifugation the speedometer pulses are interrupted. The rotor slows down until it stops. After the rotor stops, there is a DC braking for 30 sec. An MR during slowing-down causes a DC braking for 3 min. After the DC braking, the ”open the lid”...
  • Page 17 IMBALANCE Imbalance on motor axle. The centrifuge slows down until the “open the lid” release occurs. Further cooling until NOMINAL temperature is reached. • Weight difference in rotor components. • Supporting lugs not lubricated. • False IMBALANCE MODE is set (see chapter "Imbalance Mode"). •...
  • Page 18 ROTORCODE 10 An invalid rotor code was read during startup. The centrifuge slows down until the ”open the lid” release occurs. Further cooling until NOMINAL temperature is reached. • Magnetic coding on rotor is defective. • Speedometer system is defective. •...
  • Page 19 N < MIN 13 Insufficient speed; the slippage of the motor is too great. The centrifuge regulation can adjust the speed by 5% max (the limit of adjustment). The error is indicated if the ACTUAL speed is lower than the NOMINAL speed minus 5%.
  • Page 20 SER I/O - ERROR 33 CP is not receiving correct data from FC. The centrifuge slows down until the ”open the lid” release occurs. • CC to FC is defective. • CP or FC is defective. Perform an MR. SER I/O - ERROR 34 CP is not receiving correct data from FC.
  • Page 21 °C / * - ERROR 52 Overtemperature in centrifuge chamber. The centrifuge slows down until the ”open the lid” release occurs. • Sensor cable B1 is defective. • Loose contact in plug. • CP is defective. • CB is defective. Also see at CB-X3 (PIN 1 and PIN 2) and CP-X101 (PIN 4) Perform an MR.
  • Page 22 General Notice for FU / CCI - ERROR 61 to FU / CCI - ERROR 69 • FC switches independently. • The rotor freewheels, coasting. • No further user operation is possible. • Cooling continues until nominal value is attained •...
  • Page 23 FU / CCI - ERROR 67 Only centrifuges with 115 V. Overtemperature in the motor. The cable “overtemperature” in the motor has high impedance. • Overtemperature switch opens because of overtemperature in the motor • CC is defective. • FC is defective. •...

  • Page 24: Settings And Interrogations

    Settings and interrogations Control panel PROG T / °C T / °C T / °C T / °C >RCF< t / min:s IMPULS START STOP PROG The EPROM of the CP must, in all circumstances, correspond to the machine version and the cooling version. Procedure for initialization An initialization must be carried out: •...

  • Page 25: Imbalance Mode

    • Press → Display: *** OK *** START and then: PARAM - INIT F001 ↑ ↑ machine version  Number of initializations • Mains switch is OFF. • Remove both jumpers from slot 3 and slot 4 on coding strip X3 on the CP. Put a jumper on slot zero at the plug on coding strip X3 on the CP.

  • Page 26: Offset Value

    5.4.1 OFFSET value The OFFSET value is the difference between the actual temperature and the sensor temperature. Example: Actual temperature - Sensor temperature = OFFSET value 25.5 °C 27.0 °C -1.5 °C 5.4.2 Procedure for performing an OFFSET alignment 1. Mains switch is ON →...

  • Page 27: Parameter Interrogation

    Parameter interrogation Requirements: 1. Rotor is stopped. 2. Mains switch is ON. Keep key pressed down until (after about 8 sec) the following appears in the display: 1. SOUND / BELL ON1 or OFF (acoustic signal) Press key. Every time the key is pressed, the display alters as follows: 2.

  • Page 28: Checking The Motor Slippage

    Checking the motor slippage The centrifuge control can readjust the speed depending on the rotor. The error (N < MIN 13) is displayed if the rotor speed (ACTUAL speed) is lower than the permitted range of control. It is only possible to check the slippage during a centrifugation run. •...

  • Page 29: Imbalance Switch-Off

    5.10 Imbalance switch-off The permissible imbalance is specified for rotor 1724 by the indication of the difference in weight of opposite rotor positions. When having a difference in weight within the range of 15g to 30g during run-up, the drive has to switch off before reaching 1500 RPM. The imbalance switch-off is adjusted by changing the distance of the imbalance switch.

  • Page 30: Functional Check After A Repair

    Assembling and disassembling components Before assembling or disassembling components, the working processes in Tabelle 7-B for ROTINA 35 and ROTINA 35 R must first be carried out to reach the components and make a note of the plug numbers. The components are assembled in reverse order ! The further procedure is described on the following pages.
  • Page 31 In Tabelle 7-A the components are ordered in the following sequence: Column 1: Abreviation Column 2: Components Column 3: Abreviations in the circuit diagrams Column 4: Plug connections Column 5: Connections at the electronic-panels Column 6: Described in capture. Tabelle 7-A A Speed sensor (speedometer) B Motor S101...
  • Page 32 Tabelle 7-B Working processes A B C D E F G H I K L M N O P Q R S T U V W X Open lid X X X Set mains switch to X X X X X X X X X X X X X X X X X X X Disconnect X X X X X X X X X X X X X X X X X X X centrifuge from...

  • Page 33: Speed Sensor B3 (Speedometer)

    • Unscrew the four screws, and take SB out of centrifuge. • Replace SB CB A3 (cooling board) only ROTINA 35 R • All plugs on the CB must be pulled out. • Unplug the two cables (RD and BK) at the SB.

  • Page 34: Cp A4 (Control Panel)

    CP A4 (control panel) • Detach the two holding frames at the CP. • Lift out the CP on the opening at the front screen. • Replace the CP. EPROM at CP • Pull the EPROM carefully out of IC-socket. •...

  • Page 35: Mains Choke Coil (L1)

    7.12 Mains choke coil (L1) 7.12.1 Assembly and disassembly • Pull both plugs from the mains choke coil. • Undo the fastening screws of the mains choke coil. • Replace the mains choke coil. 7.12.2 Short the mains choke coil In countries, in which the European standard EN 61000-3-2 applies it is not allowed to short the mains choke coil.

  • Page 36: Appliance Plug B1, Overvoltage Protection F1

    After the installation the imbalance cutoff must be checked, see chapter "Imbalance switch-off". 7.16 Fan M5 for the motor (only ROTINA 35 R) • Remove the FC (see chapter 7.3). • Remove plug number X6 from the SB. • From below loosen the two fastening screws of the fan.

  • Page 37: Compressor (M2)

    7.20 Compressor (M2) • Loosen the fastening screws at the two hinge blocks. • Lift up the lid with the hinge blocks out of the upper housing part. • Remove both lockings from the upper housing part. • Loosen the fastening screws of the upper housing part (8 screws) through the housing floor of the centrifuge and place them aside.

  • Page 38: Speedometer-Code-Position Of The Rotors

    Speedometer-code-position of the rotors ROTINA 35 / 35 R Speedo- Position Rotor meter- occupied code-No. 1001 0000 1111 1001 0001 0111 1722, 1725, 1726, 1740, 1748 1001 0001 1011 1717, 1724 1001 0001 1101 1720, 1720A 1001 0001 1110 1718 1001 0100 0111 1001 0101 0101 1714...
  • Page 39 Used cable colours and their abbreviations: Abbreviation Colour black brown blue gold green GNYE green-yellow grey orange pink silver turquoise Transp. transparent violet white yellow 39/51...

  • Page 40: Circuit Diagrams

    Circuit diagrams Mains supply with supply board (SB) 230 V Gerätestecker Überspannungsschutz appliance plug overvoltage protection Netz/mains GNYE 230V/50Hz zum Übertemperatur- Funkentstörfilter Zur Kühlungsplatine A3 / X1 schalter F3 radio interference to cooling board A3 / X1 to overtemperature suppression filter Netzschalter switch F3 mains switch...

  • Page 41: Mains Supply With Supply Board (Sb) 115 V

    Mains supply with supply board (SB) 115 V Gerätestecker Überspannungsschutz appliance plug overvoltage protection Netz/mains GNYE 115V/60Hz Zur Kühlungsplatine A3 / X1 zum Übertemperatur- Funkentstörfilter to cooling board A3 / X1 schalter F3 radio interference to overtemperature suppression filter Netzschalter switch F3 mains switch zum Frequenzum-...

  • Page 42: Circuit Diagram Supply Board (Sb)

    Circuit diagram supply board (SB) FC-Fehler Fehlermeldung von FC FC-ERROR error message from FC (-)485-Bus listen/talk (+)485-Bus Hardware-stop Hardware-stop Tacho Verschlußrelais lid lock relay Deckel offen-Meldung lid open-message Unwucht GND imbalance GND Unwucht imbalance Tacho Netz mains Stillstand Zur Kühlplatine 115V Version standstill to cooling board...

  • Page 43: Connecting Diagram And Component Layout Supply Board (Sb)

    Connecting diagram and component layout supply board (SB) zum Frequenzumrichter A2 / S501 zur Kühlungsplatine to frequency converter A2 / S501 to cooling board zum Steuerteil A4 / X1 to control panel A4 / X1 Diagramm Pin 12 Unwuchtschalter Imbalance switch Transp Drehzahlsensor 10...14V...

  • Page 44: Signals At Control Cable (Between Cp-Sb)

    Signals at control cable (between CP-SB) X1 Pin 5 X1 Pin 4 X1 Pin 3 FC Hardware Stop Deckel offen Deckel offen lid open lid open Deckel zu Deckel zu lid closed lid closed Verschluß offen Verschlußmagnet oder Lauf aktiviert lid locking open lid locking magnet or run...

  • Page 45: Block Diagram Control Panel (Cp)

    Block diagram control panel (CP) U (5.00V) r e f Reset Verschluss / lid locking FC Stop Deckel offen / lid open µP empfangen / senden listen / talk Unwucht / imbalance FC - ERROR Tacho in & & Temp.-fühler X101 temp.

  • Page 46: Connecting Diagram Control Board (Cp)

    Connecting diagram Control board (CP) Steuerteil A4 control panel A4 X101 A4/X101 A4/X1 A3/X4 A1/X2 zur Kühlungspaltine zur Versorgungsplatine nur gekühlte Version to supply board to cooling board only refigerated Version 46/51...

  • Page 47: Block Diagram And Control Panel Signals At Fc

    Block diagram and control panel signals at FC Signale an S501: signals at S501: Netzdrossel L1 mains choke coil L1 Pin 5 = B Pin 3 = A Übertemperaturschalter F3 für R1 overtemperature switch F3 for R1 Pin 4 Pin 7 Pin 8 FC Hardware Stop Tachosignal / tacho signal...

  • Page 48: Connecting Diagram Frequency Converter (Fc)

    Connecting diagram frequency converter (FC) zur Versorgungsplatine A1 / X9 to supply board A1 / X9 S501 U = Netzspannung / S501 mains voltage A2 Frequenzumrichter/ = U x 2 S101 frequency converter Bremswiderstand brake resistor Übertemperaturschalter für R1 overtemperature switch for R1 Netzdrossel L1 Motor / motor (nur bei ROTINA 35, 230 V Ausführung;...

  • Page 49: Circuit Diagram Cooling Board

    9.10 Circuit diagram cooling board zum Steuerteil A4 / X101 to control panel A4 / X101 9 10 BC327 VDR1 1N4148 YE (GY) GN (YE) BN (GN) WH (BN) 49/51...

  • Page 50: Connecting Diagram And Component Layout Cooling Board

    9.11 Connecting diagram and component layout cooling board Anlauf- kondensator startup condenser Wicklungsschutzschalter winding protection switch VDR1 C6 C4 C5 3 4 5 6 A3 / X4 Temperaturfühler und Über- temperaturschalter im Kessel temperature sensor and overtemperature switch in centrifuge chamber A4 / X101 zum Steuerteil A4 to control panel A4...

  • Page 51: Technical Specifications

    Technical specifications Manufacturer Hettich Zentrifugen D-78532 Tuttlingen Model ROTINA 35 ROTINA 35 R Product no. 1705 1705-01 1710, 1710-01 1710-20 Mains voltage (± 10%) 220-240 V 1∼ 110-127 V 1∼ 208-240 V 1∼ 110-127 V 1∼ Mains frequency 50-60 Hz...

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