Stulz C2020 - Technical Data

EN/07.2013/58/7
2.1. Technical data
• Voltage supply 24 ÷ 48 V DC, tolerance -15 ÷ +25%
• Nominal supply 24 Vdc
• Current absorption: 210 mA at 24 V, 310 mA at 48 V
• Microprocessor with 512 Kbyte flash memory
• Mother board SB7
• Analog inputs:
– 4 AN-IN PTC, range -35 ÷ +90 °C
– 3 AN-IN: 4 - 20 mA
• 13 non-insulated DIG-IN for free-contact kind inputs
• Analog outputs:
– 2 AN-OUT 0/10V non-insulated
– 3 AN-OUT 0/10V non-insulated for DC engines control with DC tachometric feedback
– 1 AN-OUT 230Vac, 4 A insulated for power control through phase-cut
• Digital outputs:
– 9 DIG-OUT relays 48 V AC
– 3 DIG-OUT relays 230 V AC - 5 A
• 1 slot connector for interface boards on SPI bus: Stulz accessory ACTHKEY (hardware key for on-site
microprocessor programming and application setup).
• 3 serial interfaces with microprocessor:
– COM0: 1 telephone connector for connection to the user interface board.
– COM1: 1 slot for IS232 / IS485 adapter boards for connection to monitoring systems or for programming.
– COM2: 1 telephone connector for master-slave connection.
• Clock and non volatile memory on board, on I2C bus
• Operating temperature: - 20°C ÷ 60°C
• Storage temperature: - 30°C ÷ 70°C