NORD Drivesystems BU0750 - Manual (Page 106)

NORDAC SK 750E Manual
106 Subject to technical amendments BU 0750 GB-3311
Parameter Setting value / Description / Note Parameter set Available with option
P434 Function relay 1 P
BSC STD MLT
BUS
0 ... 38
[ 1 ] Control terminals 1/2: Settings 3 to 5 and 11 work with a 10% hysteresis, i.e. the relay contact closes
(Function 11 opens) when the limit value is reached and opens (function 11 closes) when a 10%
smaller value is undershot. This behaviour can be inverted with a negative value in P435.
Setting / Function
Digital Output ... for limit
value or function
(see also P435)
0 = No function open
1 = External brake, to control a mechanical brake on the motor. The
relay switches at a programmed absolute minimum frequency
(P505). For typical brakes a setpoint delay of 0.
2 … 0.3 seconds
(see also P107) should be programmed.
A mechanical brake can be directly AC switched. (Please note the
technical specifications of the relay contacts)
Closes
2 = Inverter operating, 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 = Setpoint reached, indicates that the FI has completed the
frequency increase or decrease. Setpoint frequency = actual
frequency! From a difference of 1 Hz  Setpoint not reached -
contact opens.
Closes
7 = Error, general error message, error is active or not yet
acknowledged.  Operational - closes
Opens
8 = Warning, general warning, a limit value was reached which could
lead to a later shutdown of the FI.
Opens
9 = Overcurrent warning: At least 130% of the nominal FI current
was supplied for 30 seconds.
Opens
10 = Motor overtemperature (warning): The motor temperature is
evaluated via a digital input. Motor is too hot. The warning is
given immediately, overheating switch-off after 2 seconds. Opens
11 = Torque current limit/Current limit active (warning): The limiting
value in P112 or P536 has been reached. A negative value in
P435 inverts the reaction. Hysteresis = 10%. Opens
12 = Relay via P541 – external control, the relay can be controlled
with parameter P541 (Bit 0) independently of the actual operating
status of the FI. Closes
13 = Torque limit gen. active: Limit value in P112 was reached in the
generator range. Hysteresis = 10%.
Closes