GE Industrial Solutions AF-600 FP OPCMBTCP Modbus TCP Option - Manual (Page 29)

5.4 GE Drive Control Profile
5.4.1 GE Drive Control Profile
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Illustration 5.1: (par. O-10 Control Word Profile = Drive profile)
Bit Bit value = 0 Bit value = 1
00 Reference value External selection LSB
01 Reference value External selection MSB
02 DC brake Ramp
03 Coasting No coasting
04 Quick stop Ramp
05 Hold output frequency Use ramp
06 Ramp stop Start
07 No function Reset
08 No function Jog
09 Ramp 1 Ramp 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 Control Bits
Bits 00/01
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:
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
NB!
In par. O-56 Preset Reference Select select a selection is made to 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. 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, par. F-07 Accel Time 1
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.
NB!
In par. O-50 Coasting Select a selection is made to define how Bit 03 gates
with the corresponding function on a digital input.
Bit 04, Quick stop:
Bit 04 = ‘0’ causes a stop, in which the motor speed is deceled to stop via
par. C-23 Quick Stop Decel Time.
Bit 05, Hold output frequency:
Bit 05 = ‘0’ causes the present output frequency (in Hz) to freeze. The frozen
output frequency can then be changed only by means of the digital inputs
(par. E-01 Terminal 18 Digital Input to par. E-06 Terminal 33 Digital Input) pro-
grammed to Speed up and Speed down.
NB!
If Freeze output is active, the frequency converter can only be stopped by
the following:
• Bit 03 Coasting stop
• Bit 02 DC braking
• Digital input (par. E-01 Terminal 18 Digital Input to par. E-06 Ter-
minal 33 Digital Input) programmed to DC braking, Coasting stop
or Reset and coasting stop
Modbus TCP
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