Siemens CU240B-2 - Page 46

Commissioning
4.3 Commissioning
Converter with Control Units CU230P-2; CU240B-2; CU240E-2
46 Getting Started, 04/2014, A5E32885834B AB
Table 4- 14 Changing the function of an analog input
Changing the function
Examples
1. Select the required function marked using a "CI" parameter.
2. Set this parameter to the value of status parameter r0755.x of
the analog input.
Function : AI 0 provides the setpoint for the PID
controller.
Setting : p2253 = 55[0]
Use parameter p0756[0] and the I/U switch on the front of the frequency converter to configure the analog input as voltage
or current input.
Table 4- 15 Analog outputs
Parameter
Terminals
CU240B-2
Terminals
CU240E-2
Terminals
CU230P-2
Signal
Setting
p0771[0]
12 / 13
12 / 13
12 / 13
AO 0
Important status signals:
0: Analog output locked
21: Speed actual value
24: Output frequency smoothed
25: Output voltage smoothed
26: DC link voltage smoothed
27: Actual current value (smoothed absolute value)
p0771[1] - 26 / 27 26 / 27 AO 1
p0776[0, 1] Analog outputs, type 0: Current output (0 mA … +20 mA)
1: Voltage output (0 V … +10 V)
2: Current output (+4 mA ... +20 mA)
Table 4- 16 Changing the function of an analog output
Changing the function
Examples
1. Select the required function marked using a "CO" parameter.
2. Set parameter p0771 of the analog output to the value of the
"CO" parameter.
Function : Signal "Current" at AO 0.
Setting : p0771 = 27
Use parameter p0776[0] to configure the analog input as voltage or current input.
Table 4- 17 Motor temperature sensor interface
Parameter
Terminal
Abbreviation
Possible setting
p0601
14
T1 motor (+)
0: No sensor (factory setting)
1: PTC thermistor (→ P0604)
2: KTY84 (→ P0604)
4: ThermoClick sensor
15 T2 motor (-)
p0604
Motor temperature alarm threshold