User manual HONEYWELL R7436@

[. . . ] C. 04 C. 05 C. 08 C. 12 C. 13 C. 14 C. 15 C. 16 C. 17 C. 18 C. 19 C. 21 C. 22 C. 23 1) 2) 3) Name W1 Wlim Wcomp Wi Su Wcas Rcas Xp1 Parameter Description Setting A / Setting B Low 0 5 / 30 -5 -350 -100 OFF, 0 0 0. 5 0. 5 OFF, 20 s OFF, 20 s -20 0 -20 -20 -20 6 OFF, 8 OFF, 21 0 High 50/130 50/130 40 +350 +100 50/130 40 40 40 20min 20min +20 10 +20 +20 +20 180 19 / 80 40 30 Default Resolution 0. 5 1 1 2 1 0. 5 0. 5 0. 5 0. 5 10/0. 5 10/0. 5 0. 5 0. 1 0. 1 0. 1 0. 1 1 1 1 0. 1 Default A/B Lo 0 4 0 0/1 0 0/1 3 10 0 0 50 254 0 Unit C C C % % C K K K sec/min sec/min K K K K K sec C C K Unit Main setpoint for input T1 Limit setpoint (low or high) for input T2 Compensation changeover point for input T3 Winter compensation authority Summer compensation authority Submaster or cascade setpoint Cascade reset span adjustment Throttling range (main control loop) T1 Throttling range (cascade or limit control loop) Xp2 T2 1) tr1 Reset time (main control loop) T1 1) tr2 Reset time (cascade or limit control loop) T2 Ystart Start point for mid range shift of output Y1 SOFFS Offset of main setpoint in Standby mode T1Cal Calibration of temperature sensor T1 T2Cal Calibration of temperature sensor T2 T3Cal Calibration of temperature sensor T3 RuntimeY1 Actuator run time for Y1 NightLow Night low limit against temperature extremes NightHigh Night high limit against temperature extremes NOFFS Offset of main setpoint in Night mode Name Ctrltyp 2) 21 / 70 16 / 90 20 0 0 20/OFF 10 2 10 OFF OFF 0 2 0 0 0 60 OFF OFF 5 / 20 Config. Parameter Values Lo = 0. . . 50°C, Hi1 = 0. . . 130°C, Hi2 = 0. . . 130°C 0 = internal (default), 1 = 5 K (953. . . 1053 ), 2 = 5 K (100 k. . . 0 ), 3 = 15 . . . 30C (10. . . 20 k), 4 = 5 K (0. . . 10 k), 5 = 15 . . . 30C (0. . . 100 k), 6 = 0. . . 50C or 0. . . 130C (0. . . 100 k) 0= floating, 1= 2 stage ON/OFF, 2= 3 stage ON/OFF, 3 = pwm, 4 = unconfig. [. . . ] H1 can be programmed to be in OFF mode the whole day and H2 to be ON for a short period of time on the last day of a longer holiday period to preheat or precool the space in advance before the first occupied day. setpoint (CTRP1) and generates an internal deviation signal (Xw). CTPR1 is the sum of the OAT compensation effect, the CPA, and the mode-dependent offset. Depending on the deviation signal, the control output (Y1) value is calculated and converted to a floating signal. Cooling or heating action is selected by the configuration parameter Y1CRTF. The ''Throttling range'' setting (Xp1) controls the output span. The startpoint Ystart determines (in Kelvin) the midrange shift of the output (Y1) from the calculated setpoint (CTRP1). Limit Control (Wlim, Xp2, and tr2) The R7426A controller offers limit control (Wlim) which is performed by comparing the deviation signals of the main and limit control loops. The lowest (low limit control) or highest (high limit control) deviation signal is selected and fed into the output stage. High limit control is performed if control parameter LimTyp = 1 and low limit control is performed if control parameter LimTyp = 0. During limit control, the throttling range (Xp2) and reset time (tr2) are active. Limit control will be active only if the T2 temperature sensor (control parameter T2ext = 0) is connected or alternatively the sensor T1 value (control parameter T2ext = 1) is used also for the limit control loop. Optimum Start Program The optimum start program's objective is to minimize total energy consumption by calculating in room control applications the start time for heating or cooling mode which will bring its respective space temperature to the boundary of the comfort zone at the time of occupancy start. The optimum start program uses historical data for self-adaptive adjustment. Cascade Control (Wcas, Rcas and tr2) The R7426A controller provides cascade control, which uses two control loops (master and submaster) to maintain the master setpoint (CTRP1). At zero room temperature deviation (XW Master), the discharge temperature (T2) is controlled by the programmed setpoint (Wcas = CTRP2). If the room temperature deviates, the submaster setpoint (CTRP2) is altered. The reset span adjustment (Rcas) determines the degree of reset effect. T1 C MASTER Xp CTRP1 Night Cycle Program The night cycle program offers not only energy conservation, but also the ability to assign OFF mode night low or high limits with 1K hysteresis for the protection of a space and its contents against temperature extremes. It automatically cycles between the user selected upper and lower limits and turns on full heating or cooling whenever the limits are reached. APPLICATION NOTE: All diagrams show proportional control action, only. If P+I control is in operation, the slopes for heating and cooling are not defined. Main Temperature Control The controller compares the actual temperature value measured by the main sensor (T1) with the calculated Y1 100% Heating Cooling R cas CTRP2 SUBMASTER W lim W cas R cas W lim 0 for LimTyp=0 Xw Master for LimTyp=1 0 X w Master 0 0 CTRP1 Xp1 Xw Ystart T1 C EN0B-0299GE51 R0104 4 R7426B, C TEMPERATURE CONTROLLER The integral reset time and the throttling range of the P+I control for the submaster can be adjusted by the control parameters tr2 and Xp2. High limit of CTRP2 is performed if control parameter LimTyp = 1 and low limit of CTRP2 is performed if control parameter LimTyp = 0. Freeze Protection If the contact connected to the freeze protection input is open the following actions will be executed: Control Parameter Y1CTRF 0 (Cooling) 1 (Heating) 2 (Cho) 2 (Cho) Output Function Cooling Heating Cooling Heating Freeze Protection Action Output Y1 0% 100% 0% 100% CONTROLLER FUNCTIONS Outside Air Temperature Compensation Outside air temperature compensation is performed when T3 is connected. The control parameter Wcomp defines the compensation changeover point for summer and winter compensation. [. . . ] The diagram below shows as example, 60% Output Signal with Motor RuntimeY1 set to 50 sec: Y1Mode = 3. on off out1/out2 WIRING Wiring run Type of wires Length max. 2 2 1. 0mm 1. 5mm 100 m 150 m From controller to all local input and output standard devices Offset for temperature sensors due to wire resistance per 10 m distance from sensor to controller: Temperature offset BALCO 500 0. 3C (0. 54F) 0. 15C (0. 27F) 0. 1C (0. 18F) negligible 30 50 70 80 100 sec Y1 Type of wire 0. 5mm (AWG20) 1. 0mm (AWG17) 1. 5mm (AWG15) 2 2 2 ON/OFF Output The ON/OFF output is provided to switch fans, pumps, or other MicroniK 200 controller without RTC. If one of the following conditions occur, the controller switches the ON/OFF output from OFF to ON after a fixed 3minute time delay: The controller mode ¹OFF (Comfort Standby or Night mode). The night cycle program is active. Pt 1000 0. 18C (0. 324F) 0. 09C (0. 162F) 0. 06C (0. 108F) NTC EN0B-0299GE51 R0104 6 R7426A TEMPERATURE CONTROLLER CONNECTIONS R7426A 15 16 17 18 19 20 21 22 23 24 25 26 27 28 or Summer/Winter Changeover CPA/SPA T1 24V 24V open/OUT 2 24 V T2 Y1 24V close/OUT 1 T3 B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 = 0V Occupancy T1 T2 W 303 T3 * Freeze prot. Serial Interface for Panel Bus Jumper1) W3032) 1) 2) State closed open Description T3 supplied by this controller T3 supplied from another controller Default jumper position = closed Only cut (open) jumper W303 if the T3 input is fed from another controller (parallel connection, max. [. . . ]