GE Industrial Solutions AF-600 FP Profibus DP - Manual (Page 33)

4.5 GE Drive Control Profile
4.5.1 Control Word according to Drive Profile (CTW)
To select GE Drive protocol in the control word, par. O-10 Control Word Profile must be set to GE Drive protocol [0]. The control word is used to send commands
from a master (PLC or PC) to a slave (frequency converter).
Please refer to Application Examples for an example of a control word message using PPO type 3.
Bit Bit value = 0 Bit value = 1
00 Reference value external selection lsb
01 Reference value external selection msb
02 DC brake Accel/Decel
03 Coasting No coasting
04 Quick stop Accel/Decel
05 Hold output frequency Use Accel/Decel
06 Accel/Decel stop Start
07 No function Reset
08 No function Jog
09 Ramp 1 Accel/Decel 2
10 Data invalid Data valid
11 No function Relay 01 active
12 No function Relay 04 active
13 Parameter set-up selection lsb
14 Parameter set-up selection msb
15 No function Reverse
Explanation of the Control Bits
Bits 00/01 Reference value
Bits 00 and 01 are used to choose between the four reference values, which are pre-programmed in par. C-05 Multi-step Frequency 1 - 8 according to the following
table:
NB!
In par. O-56 Preset Reference Select a selection is made to define how Bit 00/01 gates with the corresponding function on the digital inputs.
Programmed
ref. value
Parameter Bit 01 Bit 00
1 C-05 [0] 0 0
2 C-05 [1] 0 1
3 C-05 [2] 1 0
4 C-05 [3] 1 1
Bit 02, DC brake
Bit 02 = 0 leads to DC braking and stop. Braking current and duration are set in par. B-01 DC Brake Current and par. B-02 DC Braking Time. Bit 02 = 1 leads to
ramping.
Bit 03, Coasting
Bit 03 = 0 causes the frequency converter to immediately "let go" of the motor (the output transistors are "shut off"), so that it coasts to a standstill.
Bit 03 = 1 enables the frequency converter to start the motor if the other starting conditions have been fulfilled.
AF-650 GP/AF-600 FP Profibus DP Operating Instructions
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