Multi-Loop Digital Temperature Controller MA901 General Description The MA901 controls up to 8 channels in a compact 1/4 DIN size. The MA901 increases zone density and makes smaller numbers of loops affordable, yet still holds many of the advantages that a single loop controller might offer. This unit will aid designers of control equipment by saving labor costs, installation costs, electric panel sizes, and operation costs. Features ☆ 8 channels control A Digital communications A Digital contact input A Multiple alarm functions Close horizontal mounting A IP65 Waterproof/Dustproof protection 8 channels Control_ 8 channels of temperature controls are packed into 96 x 96 x 100mm case. The MA901 can reduce your panel cutouts and make your panel board smaller. Digital Communications (Optional) An optional communications interface, RS-232C or RS-422A, RS-485 is available for networking to computers, PLCs and SCADA software. MODBUS or ANSI (RKC standard) protocol can be selected. Up to 31 units can be interfaced on one RS-422A or RS-485 communication line. Digital Contact Input_(Optional) An optional digital contact input is available for RUN/STOP and memory area switching. (RUN/STOP switching can also be completed at the front key panel.) Up to 8 kinds of combinations of temperature set value, PID constant, alarm set value, etc. for each channel can be registered as "memory area" (recipe). The change of settings caused by the change of a process and product can be simply realized only by switching the "area". The switching of the area by optional external contact input is also available. The available parameters for multi memory area : S', Alarm set values, PID constants, Anti-reset windup, Overlap/dead band, Setting change rate limiter, Channel used/unused Multiple Alarm Functions 8 areas The MA901 provides a wide selection of alarm types to configure up to three alarms. Temperature alarms, Loop break alarm, FAIL Alarm 2 (Optional) : Temperature alarms, Heater break alarm, FAIL Alarm 3 (Optional) : Temperature alarms, FAIL •Alarm output is common to all channels.

Multi-Loop Digital Temperature Controller Specifications Input_ Alarm (Up to 3 points)_(Optional) Number of Inputs 8 points a) Thermocouple : K, J, R, S, B, E, T, N (JIS/IEC), PLII (NBS) •Influence of external resistance : Approx. 0.2|iV/Q •Input break action : Up-scale •Influence of input lead resistance : Approx. 0.01[%/Q] of reading •Maximum 10Q per wire •Input break action : Up-scale c) DC voltage : 0 to 5V, 1 to 5V, 0 to 10V •Input break action : Down-scale Sampling Time Input Filter First order lag digital filter Time constant 1 to 100 sec. (OFF when 0 is set) - span to +span (Within -1999...

a) 90 to 264V AC (Including supply voltage variation) b) 21.6 to 26.4V AC(Including supply voltage variation) c) 21.6 to 26.4V DC(Ripple rate 10% p-p or less) [Rating : 24V DC] Less than 14VA for standard AC type at 100V Less than 20VA for standard AC type at 240V Less than 11VA for 24V AC type Less than 330mA for 24V dC type Not affected by power failure shorter than 30msec, otherwise reset to the initial state. Operating Environments Backed up by non-volatile memory. Number of writing : Approx. 100,000 times Data retaining period : Approx. 10 years Digital Controller • UL/cUL Recognized • C-Tick...

Multi-Loop Digital Temperature Controller

Multi-Loop Digital Temperature Controller MA901 1 Loop break alarm is not available for Heat/Cool PID control type. Digital Controller Alarm 2 and 3 Code Table U Code Current transformer for heater break alarm CTL-6-P-N (0 - 30A) Shunt resistor for DC current input KD100-55

Multi-Loop Digital Temperature Controller External Dimensions and Rear Terminals 96 Heater break alarm and communication/contact input cannot be specified on the same hardware.