VLT
®
FCM Series
Programming
Example:
Parameter 201: minimum frequency, conversion factor
0,1. If parameter 201 is to be set to 10 Hz, a value of
100 must be transferred, since a conversion factor of
0,1 means that the transferred value will be multiplied
by 0.1. A value of 100 will thus be understood as 10.
Addressing by unit ID
The unit ID is printed on the label on the plastic
cover under the lid of the electronics box. The three
groups of unit ID each with three digits must be
converted to Hex. The desired address is added as
the last byte. The frame is sent to the bus address
parameter(s) 500 (and 918) via a broadcast.
PKE: Write to parameter No. 500 or 918
IND: Not Used
2. Process-bytes
The process byte block is divided into two blocks each
of 16 bits, which always come in the sequence stated.
PCD1
PCD2
Control
telegram
(master
→
slave)
Control word
Reference
value
Reply telegram
(slave
→
master)
Status word
Given output
frequency
■
Control word according to Fieldbus Profile Standard
(parameter 512 = Fieldbus Profile) The control word
is used for transmitting commands from a master
(e.g. a PC) to a slave (FC motor).
Bit
Bit = 0
Bit =1
00
OFF 1
ON 1
01
OFF 2
ON 2
02
OFF 3
ON 3
03
Motor coasting
Enable
04
Quick-stop
Ramp
05
Freeze output frequency
Ramp enable
06
Ramp stop
Start
07
No function
Reset
08
Jog 1 OFF
ON
09
Jog 2 OFF
ON
10
Data not valid
Valid
11
No function
Slow down /
Relay 123 / Digital
output terminal 9
12
No function
Catch-up / Relay
123
13
Setup 1
Setup 2
14
15
No function
Reversing
NB!:
The use of Bit 00, Bit 01 and Bit 02 for
switching off the power supply (by use of
relay) will require a separate power on. This
because there is no 24V external connection to supply
the FCM 300 control, which is required to activate
the FCM 300 again via input signal.
Bit 00, OFF1/ON1:
An ordinary ramp stop which uses the ramp time
in parameters 207/208. Bit 00 = "0" leads to
a stop. Bit 00 = "1" means that the frequency
converter will be able to start if the other conditions
for starting have been fulfilled.
Bit 01, OFF2/ON2:
Coasting stop. Bit 01 = "0" leads to a coasting stop.
Bit 01 = "1" means that the frequency converter
is able to start, provided the other conditions
for starting have been fulfilled.
Bit 02, OFF3/ON3:
Quick-stop, which uses the ramp time in parameter 212.
Bit 02 = "0" leads to a quick-stop. Bit 02 = "1" means
that the frequency converter is able to start, provided
the other conditions for starting have been fulfilled.
Bit 03, Coasting/enable:
Coasting. Bit 03 = "0" leads to a stop. Bit 03 =
"1" means that the frequency converter is able to
start, provided the other conditions for starting are
fulfilled. Note: In parameter 502 the choice is made
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