Bit 07 = "0" means there is no warning.
Bit 07 = "1" means a warning has occurred.
NB!
All warnings are discribed in the Operation
Instructions.
Bit 08, Speed •ref./speed = ref.:
Bit 08 = "0" means that the motor is running, but that
the present speed is different from the preset speed
reference. This may be the case, i.a. when the speed
is ramped up/down at start/stop.
Bit 08 = "1" means that the present motor speed equals
the preset speed reference.
Bit 09, Local operation/serial communication control:
Bit 09 = "0" means that OFF/STOP has been activated
on the control unit, or that the VLT 6000 HVAC is in
Hand mode. It is not possible to control the VLT fre-
quency converter via serial communication.
Bit 09 = "1" means that it is possible to control the fre-
quency converter via serial communication.
Bit 10, Out of frequency range:
Bit 10 = "0" if the output frequency has reached the
value in parameter 201
Output frequency low limit
or
parameter 202
Output frequency high limit
. Bit 10 = "1"
means that the output frequency is within the limits
stated.
Bit 11, Not running/running:
Bit 11 = "0" means that the motor is not running.
Bit 11 = "1" means that the VLT 6000 HVAC has a start
signal, or that the output frequency is greater than 0
Hz.
Bit 12, No function:
Bit 12 has no function.
Bit 13, Voltage warning high/low:
Bit 13 = "0" means that there is no voltage warning.
Bit 13 = "1" means that the DC voltage of the VLT 6000
HVAC intermediate circuit is too low or too high.
See the voltage limits on page 160.
Bit 14, Current limit:
Bit 14 = "0" means that the output current is smaller
than the value in parameter 215
Current limit I
LIM
.
Bit 14 = "1" means that the output current is higher than
the value in parameter 215
Current limit I
LIM
and the
frequency converter will trip after the time set in pa-
rameter 412
Trip delay overcurrent, I
LIM
has passed.
Bit 15, Thermal warning:
Bit 15 = "0" means there is no thermal warning.
Bit 15 = "1" means that the temperature limit has been
exceeded either in the motor, in the frequency con-
verter or from a thermistor connected to an analogue
input.
Serial communication reference
The serial communication reference is transmitted to
the frequency converter in the form of a 16-bit word.
The value is transmitted as whole numbers 0 - ±32767
(±200 %). 16384 (4000 Hex) corresponds to 100 %.
The serial communication reference has the following
format:
0-16384 (4000 Hex) - 0-100 % (par. 204 Minimum ref.
- Par. 205
Maximum ref.
).
It is possible to change the direction of rotation via the
serial reference. This is done by converting the binary
reference value to 2's complement.
See example.
Example - control word and serial communication ref.:
The frequency converter must receive a start com-
mand, and the reference is to be set to 50 % (2000
Hex) of the reference range.
Control word =
047F Hex. Start command
Reference =
2000 Hex. 50 % reference
The frequency converter is to receive a start com-
mand, and the reference is to be set to -50 % (-2000
Hex) of the reference range.
The reference value is first converted to the first com-
plement; then 1 binary is added to get 2's complement:
2000 Hex =
0010 0000 0000 0000 binary
1 komplement =
1101 1111 1111 1111 binary
+ 1 binary
2 komplement =
1110 0000 0000 0000 binary
Control word =
047F Hex. Start command
Reference =
E000 Hex. -50 % reference
VLT
®
6000 HVAC Series
164
MG.61.B5.02 - VLT
®
is a registered Danfoss trademark
Содержание VLT 6000 HVAC Series
Страница 31: ...Ordering form VLT 6000 HVAC Series MG 61 B5 02 VLT is a registered Danfoss trademark 31 Introduction to HVAC ...
Страница 63: ...Mechanical dimensions VLT 6000 HVAC Series MG 61 B5 02 VLT is a registered Danfoss trademark 63 Installation ...
Страница 75: ...VLT 6000 HVAC Series MG 61 B5 02 VLT is a registered Danfoss trademark 75 Installation ...
Страница 204: ...VLT 6000 HVAC Series 204 MG 61 B5 02 VLT is a registered Danfoss trademark ...