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How to Control the Adjustable Frequency
Drive
Trane FC Control Profile
FC Control Profile
Control Word According to FC Profile
FC Profile
(Par. 8-10 set to
Bit
Bit value=0
00
Reference value
01
Reference value
02
DC brake
03
Coasting
04
Quick stop
05
Hold output freq.
06
Ramp stop
07
No function
08
No function
09
Ramp 1
10
Data invalid
11
No function
12
No function
13
Parameter set-up
14
Parameter set-up
15
No function
Explanation of the Control Bits
Bits 00 and 01:
Bits 00 and 01 are used to choose between the four
reference values, which are pre-programmed in par.
3-10
Preset Reference
in accordance with the follow-
ing table:
Programmed ref.
value
1
2
3
4
In par.8-56
Preset Reference
made to define how Bit 00/01 gates with the corre-
sponding function on the digital inputs.
6-2
)
Bit value=1
External selec-
tion lsb
External selec-
tion msb
Ramp
No coasting
Ramp
Use ramp
Start
Reset
Jog
Ramp 2
Data valid
Relay 01 active
Relay 04 active
Selection lsb
Selection msb
Reverse
Bit
Bit
Parameter
01
00
3-10 [0]
0
0
3-10 [1]
0
1
3-10 [2]
1
0
3-10 [3]
1
1
Select, a selection is
Bit 02, DC brake:
Bit 02 set to [0] leads to DC braking and stop of the
motor. Braking current and duration are set in par.
2-01
DC Brake Current
and par.2-02
Time.
Bit 02 set to [1] leads to ramping.
Bit 03, Coasting:
Bit 03 set to [0] causes the adjustable frequency drive
to immediately release of the motor (the output tran-
sistors are "shut off") so that it coasts to a standstill.
Bit 03 set to [1] enables the adjustable frequency drive
to start the motor if other starting conditions have
been fulfilled.
In par.8-50
Coasting
Select, a selection is made to de-
fine how Bit 03 gates with the corresponding function
on a digital input.
Bit 04, Quick Stop:
Bit 04 set to [0] causes a stop in which the motor
speed is ramped down to stop via par.3-81
Ramp
Time.
DC Braking
Quick Stop
TR200 LonWorks
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