Danfoss VLT AutomationDrive FC 301 Programming Manual page 105

Parameter Descriptions
5-40 Function Relay
Option: Function:
has received a stop signal and is in
torque limit, the signal is logic 0.
[28] Brake, no brake Brake is active and there are no
war warnings.
[29] Brake ready, no Brake is ready for operation and there
fault are no faults.
[30] Brake fault (IGBT) Output is logic 1 when the brake IGBT
is short-circuited. Use this function to
protect the frequency converter if
there is a fault on the brake module.
Use the digital output/relay to cut out
the main voltage from the frequency
converter.
[31] Relay 123 Digital output/relay is activated when
[0] Control Word is selected in
parameter group 8-** Comm. and
Options.
[32] Mech brake ctrl Selection of mechanical brake control.
When selected parameters in
parameter group 2-2* Mechanical Brake
are active. The output must be
reinforced to carry the current for the
coil in the brake. Usually, solved by
connecting an external relay to the
selected digital output.
NOTICE
[33] Safe stop active
This option is applicable for FC
302 only.
Indicates that the Safe Torque Off on
terminal 37 has been activated.
[36] Control word bit Activate relay 1 by control word from
11 fieldbus. No other functional impact in
the frequency converter. Typical
application: Controlling auxiliary device
from fieldbus. The function is valid
when [0] FC profile in
parameter 8-10 Control Word Profile is
selected.
[37] Control word bit Activate relay 2 (FC 302 only) by
12 control word from fieldbus. No other
functional impact in the frequency
converter. Typical application:
Controlling auxiliary device from
fieldbus. The function is valid when [0]
FC profile in parameter 8-10 Control
Word Profile is selected.
[38] Motor feedback Failure in the speed feedback loop
error from motor running in closed loop.
The output can eventually be used to
prepare switching the frequency
MG33ML02
Programming Guide
5-40 Function Relay
Option:
[39] Tracking error
[40] Out of ref range
[41] Below reference,
low
[42] Above ref, high
[43] Extended PID
Limit
[45] Bus ctrl.
[46] Bus ctrl, 1 if
timeout
[47] Bus ctrl, 0 if
timeout
[50] On Reference
[60] Comparator 0
[61] Comparator 1
[62] Comparator 2
[63] Comparator 3
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Function:
converter in open loop in emergency
case.
When the difference between
calculated speed and actual speed in
parameter 4-35 Tracking Error is larger
than selected, the digital output/relay
is active.
Active when the actual speed is
outside settings in
parameter 4-52 Warning Speed Low to
parameter 4-55 Warning Reference High.
Active when actual speed is below
speed reference setting.
Active when actual speed is above
speed reference setting.
Controls digital output/relay via bus.
The state of the output is set in
parameter 5-90 Digital & Relay Bus
Control. The output state is retained in
the event of bus time-out.
Controls output via bus. The state of
the output is set in
parameter 5-90 Digital & Relay Bus
Control. If a bus time-out occurs, the
output state is set high (on).
Controls output via bus. The state of
the output is set in
parameter 5-90 Digital & Relay Bus
Control. If a bus time-out occurs, the
output state is set low (Off).
See parameter group 13-1*
Comparators. If comparator 0 in SLC is
TRUE, the output goes high. Otherwise,
it is low.
See parameter group 13-1*
Comparators. If comparator 1 in SLC is
TRUE, the output goes high. Otherwise,
it is low.
See parameter group 13-1*
Comparators. If comparator 2 in SLC is
TRUE, the output goes high. Otherwise,
it is low.
See parameter group 13-1*
Comparators. If comparator 3 in SLC is
TRUE, the output goes high. Otherwise,
it is low.
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