Danfoss iC2 Application Manual page 98

Application Guide | iC2-Micro Frequency Converters
Table 54: Control Bits
Programmed reference value
1
2
3
4
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).
If freeze output is active, the drive can only be stopped in 1 of the following ways:
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
l
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.
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Parameter
P 5.5.3.10 Preset Reference [0]
P 5.5.3.10 Preset Reference [1]
P 5.5.3.10 Preset Reference [2]
P 5.5.3.10 Preset Reference [3]
NOTICE
NOTICE
Bit 01
0
0
1
1
Bit 00
0
1
0
1
AB413939445838en-000301 / 130R1254