Minco CT124 Instruction Manual Download Page 4 | Manualshive

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Minco CT124 Instruction Manual Download Page 4

SAFETY

1.

Dangerous high voltages are present inside the case. Always cut
power to the controller before opening the front cover.
Installation of a nearby power cutoff switch is recommended.

2.

Contact Minco before attempting any repairs.

3.

Do not remove the CT124’s rear cover. Access the inside by
removing the front cover only.

4.

Many components may be damaged by static discharge. Do not
touch electrical connections inside the case. Handle plug in cards
only by their edges or at a static-free workstation.

5.

Never unplug the ribbon cable inside the enclosure while power
is applied. Permanent damage may result.

Minco Products, Inc.

CT124 Instruction Manual

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Summary of Contents for CT124

Page 1: ...emperature Monitor INSTRUCTION MANUAL When quality and performance are as important as price call PRODUCTS INC 7300 Commerce Lane Minneapolis Minnesota 55432 3177 U S A Telephone 763 571 3121 FAX 763...

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Page 3: ...ING 5 CHANGING FRONT PANEL LABELS 9 OPERATING INSTRUCTIONS 10 PROGRAMMING INSTRUCTIONS 12 TROUBLESHOOTING 18 ERROR MESSAGES 18 CALIBRATION 20 RETURN FOR REPAIR 21 SPARE PARTS LIST 21 SPECIFICATIONS 22...

Page 4: ...repairs 3 Do not remove the CT124 s rear cover Access the inside by removing the front cover only 4 Many components may be damaged by static discharge Do not touch electrical connections inside the ca...

Page 5: ...The CT124 can even monitor and control several loops at one time since you can group input zones with output relays in any combination Features Protect motors generators transformers and other equipme...

Page 6: ...inside a suitable enclosure Do not use the CT124 in hazardous explosive atmospheres Do not expose the CT124 to continuous or excessive shock and vibration Mount the CT124 at any angle 2 Cut a rectangu...

Page 7: ...ch on the right most circuit board to 230 VAC see Figure 3 Replace the cover Installation of an external power switch or circuit breaker is strongly recommended for safety and serviceability To replac...

Page 8: ...ay want the relays to be reverse acting This means that if the CT124 loses power the relay s will de energize into the tripped or alarm state See Figure 6 for a summary of relay states You can set any...

Page 9: ...ent must be insulated from ground potential and all other voltages Be sure the dielectric strength rating of the RTD exceeds the voltage it will see in use especially when mounted in electric machiner...

Page 10: ...0 Ohms of Resistance 18 0 0065 ft 1538 ft 20 0 0103 ft 971 ft 22 0 0165 ft 606 ft 24 0 0262 ft 382 ft 26 0 0418 ft 239 ft 28 0 0666 ft 150 ft Alternative RTD Wiring Options For the best accuracy all 3...

Page 11: ...side the front panel Remove the 8 screws holding the circuit board in place To avoid damage from static electricity do not to touch conductors while handling the circuit board Remove the circuit board...

Page 12: ...nput scanning is interrupted and outputs remain unchanged while in the test and programming modes ZONE TEMPERATURES Depending on its program the CT124 normally displays The highest temperature sensed...

Page 13: ...sound for a couple seconds 2 The inputs are automatically tested next The display will read or for zone 1 To view the status of other inputs zones press or 3 If programmed pushing the test button aga...

Page 14: ...turn to zone temperature GENERAL PROGRAMMING INSTRUCTIONS Program Display The CT124 display will show an operation code at the left and the selected parameter at the right Zone relay and alarm lights...

Page 15: ...ted zone Relays and Alarms Each step is repeated for each relay and the alarm rt or At 40 to 250 C 40 to 492 F to 530 C or 986 F with platinum RTD OFF Relay or Alarm Trip Temperature Set the trip poin...

Page 16: ...ed to cooling fans and trips at 110 C 3 Relay 2 is connected to an external alarm and trips at 140 C The built in alarm also goes off 4 Relay 3 shuts the transformer down at 155 C 5 The override butto...

Page 17: ...110 140 155 OFF OFF rH or AH Hysteresis deadband 2 to 20 C or F 2 2 2 rP or AP Trip on overtemperature HI or undertemperature LO HI LO HI LO HI LO HI LO HI LO rA Sound audible alarm when this relay t...

Page 18: ...l not be used 140 155 100 110 OFF rH or AH Hysteresis deadband 2 to 20 C or F 2 2 2 2 rP or AP Trip on overtemperature HI or undertemperature LO HI LO HI LO HI LO HI LO HI LO rA Sound audible alarm wh...

Page 19: ...l not be used 38 OFF OFF OFF 35 rH or AH Hysteresis deadband 2 to 20 C or F 4 2 rP or AP Trip on overtemperature HI or undertemperature LO HI LO HI LO HI LO HI LO HI LO rA Sound audible alarm when thi...

Page 20: ...splayed This is designed to occur when the useful life of the non volatile memory has expired typically greater than 10 years Extreme power line transients may also corrupt the memory You may or may n...

Page 21: ...ments There are a number of actions that may improve noise immunity A few things to try are 1 Use twisted and or shielded leads for the RTD s If shielded wire is used make sure the shield is insulated...

Page 22: ...press or so the display reads User Calibration 4 Press The display should now read 5 Unplug the RTD connector board from the rear of the CT124 and replace it with the AC758 Be sure the 2 letter code o...

Page 23: ...plications may require immediate action If your CT124 should fail and it must be replaced within hours rather than a few days or weeks we have developed a convenient loaner exchange program Call Minco...

Page 24: ...er AC Version 115 or 230 VAC 10 50 60 Hz 15 Watts maximum Selector switch inside case DC Version 24 VDC 10 15 Watts maximum Power loss protection Trip points peaks and program parameters stored in non...

Page 25: ...to 530 C 986 F PB 100 Platinum TCR 0 00391 40 to 530 C 986 F PD 100 Platinum TCR 0 00385 40 to 530 C 986 F PE same as PD but sensor has wider tolerances PF 1000 Platinum TCR 0 00385 40 to 530 C 986 F...

Page 26: ...ilable to the buyer in the event of a breach by the Seller Items that show evidence of mishandling or misapplication may be returned by the Seller at the customer s expense Furthermore the Seller is n...

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