Self-optimising 2-zone controller for the Switch cabinet installation on Top-hat rail

HT 85 series

Thanks to its free configurability and compact design, theHT85is a universal controller for machine, plant and apparatus engineering. When designing this appliance, particular emphasis was placed on simple and clear handling. The mounting on standard rails and the removable terminals (plug-in blocks) also guarantee use under difficult installation conditions in the switch cabinet.

Power supply	100-240 Volt AC / 48 Hz...62 Hz; approx. 3 VA 24 Volt DC / +/- 20%; 3 W
Sensor types	Pt100, Pt1000, Fe-CuNi (J), NiCr-Ni (K), Ni120, sensor breakage protection, sensor polarity reversal check, short-circuit monitoring
Error limit	Calibration accuracy: <0.25%; linearity error: < 0.2%
Actual/target display	7-segment display; 3+ digits
Measuring range	-20 ... 999 °C (depending on the sensor type)
Output Triac	230V AC; 600W/channel; max. total power 1200 W 24V DC; 65w/channel; max. total power 130W
Output Load relay	Relay NO contact max. 250V AC, max. 16A, resistive load
Output Logic	Voltage, bistable; 0/12V DC, Ri=680 Ohm
Output Alarm relay	Changeover contact, 24V DC 1A, no mains voltage permitted
Inputs	4-20 mA continuous inputs for external setpoint specification
Protection class	IP 20 (DIN 40050)
Controller dimensions	72 x 70 x 90 mm (H x W x D) without clamps
Connections	plug-in connection terminals
Electrical connections	Cross-section terminals 1-12: 0,2 ... 2.5 mm² cross-section terminals 20-38: 0,14 ... 1.5mm²
Special functions	Self-optimisation of the controller parameters for quick adaptation to the controlled system. Safety operating mode can be set by connecting the relays upstream of the triac control to switch off in the event of a fault alarm, setpoint limitation and setpoint correction.
Installation housing for HT 55
Housing dimensions HZ-EK 2	for 1 unit 125 x 200 x 122 mm
Housing dimensions HZ-EK 4	for 2 units 200 x 200 x 122 mm
Housing dimensions HZ-EK 6	for 3 units 250 x 200 x 122 mm
HT 55 protection type	IP65 (EN 60529) in installation housing
Design	in accordance with VDE 0631