Technical data
10.2 Technical data, CU240E-2 Control Unit
Converter with the CU240B-2 and CU240E-2 Control Units
426 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Digital outputs 3 (DO 0 … DO 2)
• DO 0: Relay output, 30 VDC / max. 0.5 A with resistive load
• DO 1: Transistor output, 30 VDC / max. 0.5 A with resistive load,
protection against incorrect voltage polarity.
• DO 2: Relay output, 30 VDC / max. 0.5 A with resistive load.
• 2 ms update time
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 outputs 2 (AO 0, AO 1)
• 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.
Fail-safe digital input 1 (DI 4 and DI 5)
• If you have enabled the basic functions of the safety functions, DI 4
and DI 5 form the fail-safe digital input.
• Maximum input voltage 30 V, 5.5 mA
• Response time:
– Typical: 5 ms + debounce time p9651
– Typical, if debounce time = 0: 6 ms
– Worst-case scenario: 15 ms + debounce time
– Worst case, if debounce time = 0: 16 ms
Extended safety function data be found in the "Safety Integrated" function manual.
Overview of the manuals (Page 507)
PFH 5 × 10E-8 Probability of failure of the safety functions (Probability of Failure per
Dimensions (WxHxD) 73 mm × 199 mm × 39 mm The depth specification is valid when mounting on the Power
Memory cards Slot for SD or MMC memory cards,
Overview of Control Units (Page 29)
Operating temperature -10° C … 55° C CU240E-2, CU240E-2 F, CU240E-2 DP, CU240E-2 DP-F
Without inserted Operator Panel
-10° C … 53° C CU240E-2 PN, CU240E-2 PN-F
Without inserted Operator Panel
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