HT MC2 - Microprocessor Regulator for 2 Control Circuits

This compact regulator for the mounting on a DIN rail has a couple of special features:

• very compact dimensions: 110 x 70 x 72 mm (L x W x H)

• easy to install due to the connection with detachable contact strips

• at 230 V~, heater powers of 2 x 600 W (triacs) or 2 x 1500 W (mechanical relays) are switched internally, without additional circuit amplifiers

• external set-point setting via 4 - 20 mA current signals

Further features are possible: different temperature sensors, self-optimizing regulation parameters, potential-free signal contact adjustable for each channel, digital display for nominal value / actual value as well as nominal value limitation between 0 and 250 °C.

The following operation modes are possible:

• Mode 1: Regulation of two heating circuits

For switching the load, two electrical triacs and two mechanical relays are integrated. When the internal triacs are used, the heating current is additionally passed through the mechanical relay. In case of an error (sensor break, excess temperature), the heatings are mechanically cut off from the mains..

• Mode 2: Regulation and supervision of one heating circuit

One heating circuit operates with two temperature sensors: sensor 1 measures the regulation temperature, sensor 2 monitors the limiting temperature. This mode is especially suitable if the section to be regulated reacts very slowly and controlling  the maximum temperature of the heating element is particularly important during the heating-up period.

• Mode 3: Regulation and limitation of one heating circuit

One heating circuit operates with two temperature sensors: sensor 1 measures the regulation temperature, sensor 2 a limiting temperature (can be adjusted to a value which is 1 to 20 K higher than the nominal temperature at sensor 1). When the limiting temperature is reached, a mechanical relay cuts the heating permanently from the mains. A restart is possible by a reset. Please note: due to the fact that the sensor signals are handled in one single processor, the device must not be used as a (safety) temperature limiter.

Technical Data

set point range 0 - 250 °C
control system P / PD / PID self-optimizing
power control 2 x triac and/or 2 x relay
temperature sensor NiCr-Ni (K), Fe-CuNi (J), Pt 100, Ni 120
mounting DIN rail 35 x 7,5 acc. to EN 50022
case dimensions/material 110 x 70 x 72 mm (L x B x H), Lexan 940 / Noryl VO 1550
load current (triac) max. 2 x 2.5 A
load current (relay) max. 2 x 6.5 A
safety class I
protection category IP 40
cross section clamps 1 x 2.5 mm²

Order Data

order no. nominal voltage
064050 230 V AC
064052 115 V AC
064055 24 V DC
 

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