User manual BENTRUP TC 40

[. . . ] This familiarizes you with all functions of the TC40 quickly and ensures that you can use all the capablities of your control. Security Advice Please refer to the security advice of the kiln manufacturer. Make sure that the control is mounted at a safe distance from the kiln and that the control is not exposed to direct heat or radiation when the kiln is opened whilst it is hot. Firing Curves The microprocessor controller TC40 provides your kiln with a precise and reproducable controlling unit. The firing course is shown as a firing curve consisting of five segments. This firing curve consists of the following sements: a. [. . . ] The display (1) shows the actual rate for the heat up. Use the keys (4) and (6) to change this value to 120°C/h (as our example). Press the key (3) again to select the next segment (b). Use the keys (4) and (6) to enter the requred final temperature of the firing (800°C as our example). If you hold the key (4) or (6) pressed, the displayed value will run through automatically. k k k resp. resp. resp. o o o o o o Press the key (3) to step to the next segment of the curve (section c. ). Adjust the dwell to the required value (e. g. 10 minutes). Instead of a linear heat up (section a. ) you can also enter an uncontrolled heat up, ie. This is done by setting the firing curve to SKIP in the section a. The value SKIP is shown as depicted left. 10 If you want to change a value again or you have skipped a segment unintentionally, use the key (3) to get back to the beginning of the firing curve. You can alter all values as often as you like. The display (1) shows from now on always the kiln temperature. Additionally, the firing curve (2) indicates the current section of the firing. The flashing decimal point in the right hand corner indicates programme running. start stop Checking the Programme Values To check or change the values of a programme when the firing has already been started, proceed as follows: Press the key (3), the firing is interrupted automatically (decimal point stops flashing). Now, you can step through the segments using the key (3) as described before. To change a value, use keys (4) and (6). To continue the firing with the new values press key (5) again. Reaction on Power Breakdown For security reasons the firing will be interrupted if a power breakdown occurs. For special applications a version with power breakdown restart feature is available on request. Maximum Adjustable Values heat up . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C to 480°C/h, SKIP end of heat up . . . . . . . . . . . . . . . . 580°C (fix, configurable) final temperature . . . . . . . . . . . . 400°C to 1320 °C* dwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 00 to 1. 00 hours * this value varies depending on the kiln 11 Error Messages The integrated microprocessor inside your TC60 performs continous checking of the firing process. In case of any malfunction the display will show an error message pointing to the problem. Following is a description of the possible error messages: The kiln doesn´t follow the required temperature increase. This error message points clearly to a kiln problem. [. . . ] adjustable temperature proportional band integral time derivative time cyclus time power relay units for temperatures °C - °F lock error message F1 (heat up check) temp. for switching over to full power value range 0-3 20-1600 0. 0-99. 9 10-8000 0-999 1-100 0-1 0-1 20-1600 unit °C % s s s °C 13 Technical Informations Schematic of a Kiln (a) (b) power relay (heating) (c) (d) (e)* (f) (g) (h, n) a . . . n: electrical links for the controller protection ground mains supply live mains supply neurtral (+) thermocouple (-) e. g. 2nd power relay (optional) Pin Assignment HAN 7 D 7 2 3 1 6 5 4 HAN 15 D c b a 1 2 3 4 5 CPC14 1 4 8 12 3 7 11 14 connect. [. . . ]