Siemens CU240B-2 - Page 424

Technical data
10.1 Technical data, CU240B-2 Control Unit
Converter with the CU240B-2 and CU240E-2 Control Units
424 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Feature
Data
Digital output 1 (DO 0)
• Relay output, 30 V DC / max. 0.5 A for ohmic loads
• Update time 2 ms
For applications which require UL certification, the voltage at DO 0 must not exceed 30 VDC
referred to ground potential and must be supplied via a grounded class 2 power supply.
Analog output 1 (AO 0)
• 0 V … 10 V or 0 mA … 20 mA
• Reference potential: "GND"
• 16-bit resolution
• 4 ms update time
Temperature sensor PTC
• Short-circuit monitoring 22 Ω
• Switching threshold 1650 Ω
KTY84
• Short-circuit monitoring < 50 Ω
• Wire-break > 2120 Ω
PT1000
• Short-circuit monitoring < 603 Ω
• Wire-break > 2120 Ω
Temperature switch with isolated contact.
USB interface
Mini-B
Dimensions (WxHxD) 73 mm × 199 mm × 39 mm The depth specification is valid when mounting on the Power
Module.
Weight
0.49 kg
Memory cards Slot for SD or MMC memory cards
Overview of Control Units (Page 29)
Operating temperature
-10° C … 55° C
Without inserted Operator Panel
0° C … 50° C
With inserted BOP-2 or IOP Operator Panel
Observe
any possible restrictions regarding the operating temperature as a result of the Power
Module.
Storage temperature
- 40° C … 70° C
Relative humidity
< 95%
Condensation is not permissible.