Operating Instructions

Transcription

1 TC 60/8 THERMOCOMPUTER TC 60/8 temp / time s s temp / time k start stp Operating Instructins

2 Cntents General Infrmatin...1 Security Advice...1 Firing Curves...1 Typical Firing Curves...2 Entering a Firing Curve...2 Checking the Prgramme Values...3 Displays during the Firing...4 Direct Cntrl...4 Further Hints Reactin n Pwer Breakdwn...4 Maximum Values...4 Errr Messages...5 Setting the Parameters...6 Technical Infrmatin...7 Cntrller Layut THERMOCOMPUTER TC 60/8 1 Display 1 2 Segment indicatr temp / time 3 firing curve 2 3 s 4 key fr selecting previus f the firing curve 4 5 s k temp / time key fr selecting next f the firing curve 6 start/stp key 6 start stp 7 key fr decreasing the displayed value 8 key fr increasing the displayed value 9 main switch 9 10

3 General Infrmatin Yur brand new bentrup TC60/8 is the mst flexible kiln cntrller in the cmpact class specially designed fr mre cmplex firing curves (e.g. glass prcessing, fusing etc.). The TC60/8 cmbines many features fr cmplex firing prcesses, safe and precise kiln peratin at a reasnable price. Befre perating the TC60/8, please read and understand the manual carefully. This familiarizes yu with all functins f the TC60/8 quickly and ensures that yu can use all the capablities f yur cntrl. Security Advice Please refer t the security advice f the kiln manufacturer. Make sure that the cntrl is munted at a safe distance frm the kiln and that the cntrl is nt expsed t direct heat r radiatin when the kiln is pened whilst it is ht. Firing Curves The micrprcessr cntrller TC60/8 prvides yur kiln with a precise and reprducable cntrlling unit. The firing curse is shwn as a firing curve cnsisting f up t 9 s. An example is shwn belw. This firing curve cnsists f the fllwing sements: [ C] (a) (b) (c) (d) (e) (f) (g) [min] a. prgramme delay 1 hur b. heat up t 550 C in 6 hurs c. heat up t 810 C uncntrlled d. dwell 10 minutes e. uncntrlled cling t 510 C f. dwell 1 hur g. cling t 460 C in 5 hurs Each cnsists f a temperature and the time t reach this temperature. Yu nly need t enter the s required (nt all 9 s). The prgramme delay (e.g. useful t take advantage f "ff peak" electricity) is entered as 0. 11

4 Example Curve The firing curve shwn abve is translated fr the TC60/8 int the fllwing s: n. temperature time C C SKIP* C C SKIP* C C 5.00 Entering a Firing Curve 7 End** *SKIP: This value stands fr uncntrlled (=maximum) heat up r cling. **End: This value entered instead f the temperature indicates t the cntrller the end f the prgramme. k k resp. As shwn in 3 and 5, a dwell is simply achieved by repeating the temperature f the previus (fllwed by the required dwell time). The abve firing curve is entered as fllws: Turn n the cntrller by the mains switch. After a few secnds the actual kiln temperature appears n the display (1). Select the 0 by pressing the key (4) nce. The display (1) shws the actual prgramme delay as hurs / minutes (SKIP=0.00). Use the keys (7) and (8) t change this value. k resp. Press the key (5) t enter 1 (display (2) shws "1"). The display (1) reads the actual set temperature. Use the keys (7) and (8) t adjust t the required value f 550 C. Press the key (5) again t enter the value f 6.00 hurs with the keys (7) and (8). If yu hld the key (7) r (8) pressed, the displayed value will run thrugh autmatically. 12

5 Check the decimal pint in the middle f the display (1) t indentify whether the TC60/8 shws a temperature r a time (with decimal pint) Prceed in the same way t enter the temperature and time values fr all s. The sequence f entering the values can be any; hwever, t step t the next, the TC60/8 requires the previus t be entered. This avid unintended skipping f a. The value SKIP fr uncntrlled heating / cling is entered as a time by hlding the key (7) pressed. SKIP is shwn as depicted n the left. The value End (indicates t the cntrller the end f the firing) is adjusted by hlding the key (7) pressed while entering a temperature. If yu want t alter a value again r if yu have skipped unintentinally a, yu can select it at any time by using the keys (4) r (5) resp. start stp T start the firing, press the key (6). The display (1) shws frm nw n always the kiln temperature. During a prgramme delay, the display (1) shws the remaining time until the firing starts. The display (2) reads the current f the firing curve. The flashing decimal pint in the right hand crner indicates prgramme running. At successful cmpletin the display reads "E" fr "End". Checking the Prgramme Values T check r change the values f a prgramme when the firing has already been started, prceed as fllws: Press the key (4) r (5), the firing is interrupted autmatically (decimal pint stps flashing). Nw, yu can step thrugh the s using the key (4) and (5) as described befre. T change a value, use keys (7) and (8). T cntinue the firing with the new values press key (6) again. 13

6 Displaying Values during a Firing During a firing there are tw interesting values that can be displayed withut interrupting the firing: actual setpint: press the key (8) and the cntrller shws the setpint temperature fr 3 secnds (the display shws a decimal pint in the left crner). time remaining in actual : press the key (7). The time remaining in the actual is displayed fr 3 secnds. In ramps, the actual time might differ e.g. if the kiln is t slw. Bth these values can nly be called up during a running prgramme. Direct Cntrl (ca. 3 secnds) In certain applicatins it is very helpful t take direct cntrl f the firing prcess (e.g. n glass fusing). The TC60/8 prvides the fllwing features: Immediate skipping t next : Disregarding the present temperature and time yu require t skip immediately t the next. Hld the key (8) pressed fr 3 secnds, the TC60/8 enters the next immediately. (ca. 3 secnds) Hld a : Yu require t stp the time in a dwell r the remain at the present temperature in a ramp. Hld the key (7) pressed an "h" is flashing n the display cnfirms the TC60/8 in hld status. Attentin: The TC60/8 remains in hld until it is released in the same way (hld key (7) until the "h" disappears). Reactin n Pwer Breakdwn Fr security reasns the firing will be interrupted if a pwer breakdwn ccurs. Fr special applicatins a versin with pwer breakdwn restart feature is available n request. Maximum Adjustable Values prgramme delay t hurs temperatures...20 C t 1320 C* ramp / dwell times t hurs *this value varies depending n the kiln 14

7 Errr Messages The integrated micrprcessr inside yur TC60/8 perfrms cntinus checking f the firing prcess. In case f any malfunctin the display will shw an errr message pinting t the prblem. Fllwing is a descriptin f the pssible errr messages: The kiln desn t fllw the required temperature increase. This errr message pints clearly t a kiln prblem. Pssible cause: brken fuse, pwer phase r relay failed the dr (lid) cntact is pen a heating element is brken the heating elements are t ld (esp.with high firing temperatures) the thermcuple has a shrt circuit Thermcuple r thermcuple circuit defect Pssible cause: thermcuple brken thermcuple wiring bad cntacts f the cnnecting plug bad Impssible values n data acquisitin Pssible cause: thermcuple plarized bad thermcuple temperature less than -15 C Safety Switch Off features was activated The TC60 has measured an vertemperature in the kiln and switched ff the kiln by the 2nd pwer relay (if fitted). Check carefully the cause befre using the kiln again t avid further damage! Ask yur dealer fr assistance. 15

8 Errr detected during pwer-up self check On every pwer-up the cntrller perfrms a self check. If an errr is detected the cntrller shws F8 (ROM errr) r F9 (hardware errr). Please cntact yur lcal dealer. Setting the Parameters f the TC60/8 This infrmatin describes hw t adapt the TC60/8 t the kiln. Usually, this is dne by the kiln manufacturer. Yu can call up the parameters t view nly; t change them, yu need a special authrizatin cde which is available frm us n request. T get int the parameter menu press the key start/stp and hld it pressed fr abut 4 secnds. Nw, the display reads the first cnfigurable value and yu can step thrugh the list by pressing the key (5). cde usage value range unit 0 type f thermcuple S-R-K-J max. adjustable temperature C 2 prprtinal band % 3 integral time s 4 derivative time s 5 cyclus time pwer relay s 6 units fr temperatures C - F lck errr message F1 (heat up check)

9 Technical Infrmatins Schematic f a Kiln (a) (b) pwer relay (heating) (c) (d) (e)* prtectin grund mains supply live e.g. 2nd pwer relay (ptinal) (f) mains supply neurtral (g) (+) thermcuple (h,n) (-) a... n: electrical links fr the cntrller Pin Assignment HAN 7 D HAN 15 D CPC c b a cnnect. functin HAN7D HAN15D CPC14 a additinal cntrl utput (live) 7 C3 12 b cntrl utput pwer relay (live) 6 A3 14 c cntrl utput pwer relays (neutral) 1 B3 13 d prtectin earth * PE clamp 11 e mains supply live 5 A1 8 f mains supply neutral 2 B1 9 g thermcuple + 3 B5 1 h thermcuple - (type S, R) 4 C5 2 n thermcuple - (type K, J) 4 A5 3 * prtectin earth shuld be cnnected! Imprtant Nte Please cmpare type f thermcuple used in the kiln with the cntrllers thermcuple input marked n the back f the cntrller. Mismatch can cause severe damage f kiln and cntents We reserve the right t make any changes withut ntice Operating Instructins TC60/8 V3.2 (C)pright 1998 bentrup Industrial Cntrls, D Fernwald 17