NORD Drivesystems BU0700 User Manual
Page 85
BU 0700 GB-1411
Subject to technical alterations
85
Parameter
Setting value / Description / Note
Available with option
P434 (P)
Relay function 1
BSC STD MLT BUS
0 ... 38
[ 1 ]
Functions for the signal relay 1 (Control terminals 1 / 2)
The settings 3 to 5 and 11 work with 10% hysteresis, i.e. the relay contact closes (fct. 11 opens) when
the limit value is reached and opens (function 11 closes) when a 10% smaller value is undershot.
Setting / Function
Relay contact ... for
limit value or
function
(see also P435)
0 = No function
open
1 = External brake, to control a brake on the motor. The relay switches at a
programmed absolute minimum frequency (P505). A setpoint delay should be
programmed for typical brakes (see P107).
A mechanical brake can be directly AC switched. (Please note the technical
specifications of the relay contacts)
Closes
2 = Inverter is working, the closed relay contact indicates voltage
FI output (U - V - W).
Closes
3 = Current limit, based on the setting of the motor rated current in P203. This
value can be adjusted with the standardisation (P435).
Closes
4 = Torque current limit, based on motor data settings in P203 and P206.
Signals a corresponding torque load on the motor. This value can be adjusted
with the standardisation (P435).
Closes
5 = Frequency limit, based on motor nominal frequency setting in P201. This
value can be adjusted with the standardisation (P435).
Closes
6 = Level with setpoint, indicates that the FI has completed the frequency
increase or decrease. After the contact has closed, the setpoint must change
by at least 1Hz
setpoint value not reached, contact opens
Closes
7 = Fault, general error message, error is active or not yet acknowledged.
Operational
– closes
(Note: Ready does not automatically mean "Ready for switch-on")
Opens
8 = Warning; total warning, a limit value was reached that could lead to a later
shutdown of the FI.
Opens
9 = Overcurrent warning, min. 130% FI nominal current for 30 sec.
Opens
10 = Motor overtemperature motor: The motor temperature is evaluated via a
digital input. Motor is too hot. Warning occurs after 1 seconds, overheating
switch off after 2 seconds.
Opens
11 = Torque current limit (warning), The limit value in P112 / P536 is reached. A
negative value in P435 inverts the reaction. Hysteresis = 10%.
Opens
12 = Value of P541, using parameter P541 (Bit 0), the relay can be controlled
independently of the actual operating status of the FI.
Closes
13 = Torque current limit generally active with ISD control: Limit value in P112
has been reached in the generator range. Hysteresis = 10%; Torque limit gen.
active
Closes
14 = ... 29 reserved
---
30 = Bus IO In Bit 0 / Bus In Bit 0
Closes
31 = Bus IO In Bit 1 / Bus In Bit 1
Closes
32 = Bus IO In Bit 2 / Bus In Bit 2
Closes
33 = Bus IO In Bit 3 / Bus In Bit 3
Closes
34 = Bus IO In Bit 4 / Bus In Bit 4
Closes
35 = Bus IO In Bit 5 / Bus In Bit 5
Closes
36 = Bus IO In Bit 6 / Bus In Bit 6
Closes
37 = Bus IO In Bit 7 / Bus In Bit 7
Closes
38 = Output via BUS
Closes
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