NORD Drivesystems BU0300 - Manual (Page 95)

7.8 Control terminals
BU 0300 EN Subject to technical alterations 95
Value Function Description Signal
22 ... 25 reserved
Analog functions for digital inputs can be programmed for every input, they have a resolution of 7 bit
and can be used for simple applications.
26 Torque current limit Adjustable load limit, the output frequency is reduced when it
is reached. → P112 Analog
27 Actual frequency PID Possible PID actual value feedback Analog
28 Frequency addition Addition to other frequency setpoint values Analog
29 Frequency subtraction Subtraction from other frequency setpoint values Analog
30 Inhibit PID Switching the PID controller / process controller function on
and off (high = ON) High
Analog functions for digital inputs can be programmed for every input, they have a resolution of 7 bit
and can be used for simple applications.
40 Current value process controller * Activates the process controller, analog input 1 is connected
to the actual value sensor (compensator, air can, flow volume
meter, etc.). The mode (0-10 V or 0/4-20 mA) is set in P401. Analog
41 Nom. Value Process controller * Like function 14, however the setpoint is specified (e.g. by a
potentiometer). The actual value must be specified using
another input. Analog
42 Add. Process control * Adds an adjustable additional setpoint after the process
controller Analog
43 … 46 reserved
47 Motorpoti frequency + When an enable is present, the frequency setpoint can be
increased by pressing the key. The acceleration time P102 is
relevant for increases using the key. Limitation is
implemented with the maximum frequency P105. High
48 Motorpoti frequency - When an enable is present, the frequency setpoint can be
decreased by pressing the key. The deceleration time P103 is
relevant for decreases using the key. Limitation is
implemented with the minimum frequency P104.
Reversing is not possible in this way.
High
71 Motorpoti frequency +
with automatic saving
When an enable is present, the frequency setpoint can be
increased by pressing the key. The acceleration time P102 is
relevant for increases using the key. Limitation is
implemented with the maximum frequency P105.
One second after the frequency change, the held frequency
value is automatically saved in parameter P113 (jog
frequency).
High
72 Motorpoti frequency -
with automatic saving
When an enable is present, the frequency setpoint can be
decreased by pressing the key. The deceleration time P103 is
relevant for decreases using the key. Limitation is
implemented with the minimum frequency P104.
Reversing is not possible in this way.
One second after the frequency change, the held frequency
value is automatically saved in parameter P113 (jog
frequency).
High
1 If neither of the digital inputs is programmed for left or right enable, then the actuation of a fixed frequency or jog frequency will
enable the frequency inverter. The rotation field direction depends on the sign of the setpoint.
2 Also effective for Bus control (RS232, RS485, CANbus, CANopen, DeviceNet, Profibus, InterBus, AS-Interface)
*) For further details about the process controller, see Chap. 12.3