Order number: 900350.011
V2.70
Seite 19
Technical data of ST552
Analog inputs
F1:
Temperature sensor Pt100 or thermocouple TC
Measuring range:
Pt100 -80...+400 °C
TC
-50...+400 °C
Measuring accuracy referred to controller at 25 C: +/-0.5 K and +/-0.5 % of measuring range
Digital inputs
E1:
External start-stop button
E2:
Overtemperature signal contact from temperature limiter
Signal outputs
K1:
Relay, 8(1.5) A / 250 V~, normally-open contact (heating contact)
K2:
Relay, 8(1.5) A / 250 V~, normally-open (control contact 2)
K3:
Relay, 8(1.5) A / 250 V~, normally-open (raise basket)
K4:
Relay, 8(1.5) A / 250 V~, normally-open (lower basket)
K7:
Relay, 8(1.5) A / 250 V~, change-over contact (alarm contact)
Linear analog output with 0 to 20 mA output range
PWM output
S1:
PWM output 3.6 KHz, output of PID correcting variable for control via a fan
Power supply
230 V~ 50/60 Hz, Power consumption max. 6 VA
Connections
Screw terminals, grid 5.00 mm, for cables up to 2.5 mm²
Ambient conditions
Storage temperature
-20...+70 °C
Operating temperature 0...55 °C
Relative humidity
max. 75 % r.H., no condensation
Weight
approx. 600 g
Enclosure type
IP65 front, IP00 rear
Protection class
Protection class II, rated voltage 250 V~
Standards
CE Low Voltage Directive 73/23/EEC
EN 60335-1:2002
Household and similar electrical appliances - Safety -
EN 60730-1:2002
Automatic electrical controls for household and similar use
EN 61010-1:2001
Safety requirements for electrical equipment for measurement, control and
laboratory use
CE EMC Directive 89/336/EEC, degree of severity 3
ST-Bus at RS485
Shielded 2-wire cable, twisted pair, maximum cable length 1000 m
Interface driver: RS485, galvanically not isolated.
The network must be designed in line topology with termination resistor of 120 Ohm on both sides.
Installation specifications
The display unit is designed for installation in a switching panel (note dimensioned drawing).
Front size:
154.8mm x 61.8mm
Assembly size: 180 x 87mm
Assembly depth:
approx. 25mm
