Table 54: Control Bits
Programmed reference value Parameter Bit 01 Bit 00
1 P 5.5.3.10 Preset Reference [0] 0 0
2 P 5.5.3.10 Preset Reference [1] 0 1
3 P 5.5.3.10 Preset Reference [2] 1 0
4 P 5.5.3.10 Preset Reference [3] 1 1
NOTICE
In P 5.5.2.7 Preset Reference Select, define how bit 00/01 gates with the corresponding function on the digital inputs.
Bit 02, DC Brake
Bit 02=0: Leads to DC braking and stop. Set braking current and duration in P 5.7.4 DC Brake Current % and P 5.7.3 DC BrakeTime.
Bit 02=1: Leads to ramping.
Bit 03, Coasting
Bit 03=0: The drive immediately releases the motor (the output transistors are shut off), and it coasts to a standstill.
Bit 03=1: If the other starting conditions are met, the drive starts the motor.
In P 5.5.2.1 Coasting Select, define how bit 03 gates with the corresponding function on a digital input.
Bit 04, Quick Stop
Bit 04=0: Makes the motor speed ramp down to stop (set in P 5.7.7 Quick Stop Ramp Time).
Bit 05, Hold Output Frequency
Bit 05=0: The present output frequency (in Hz) freezes. Change the frozen output frequency only with the digital inputs programmed to
[21] Speed up and [22] Speed down(P 9.4.1.2 T13 Digital Input to P 9.4.1.5 T17 Digital Input).
NOTICE
If freeze output is active, the drive can only be stopped in 1 of the following ways:
l Bit 03 coast stop.
l Bit 02 DC brake.
l Digital input programmed to [5] DC brake inverse, [2] Coast inverse, or [3] Coast and reset inv (P 9.4.1.2 T13 Digital Input to P
9.4.1.5 T17 Digital Input).
Bit 06, Ramp Stop/Start
Bit 06=0: Causes a stop and makes the motor speed ramp down to stop via the selected ramp-down parameter.
Bit 06=1: Allows the drive to start the motor if the other starting conditions are met.
In P 5.5.2.4 Start Select, define how bit 06 ramp stop/start gates with the corresponding function on a digital input.
Bit 07, Reset
Bit 07=0: No reset.
Bit 07=1: Resets a trip. Reset is activated on the leading signal edge, that is, when changing from logic 0 to logic 1.
98 | Danfoss A/S © 2024.03 AB413939445838en-000301 / 130R1254
Application Guide | iC2-Micro Frequency Converters
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