NORDAC SK 5xxE Manual
100
Subject to technical alterations
BU 0500 GB
Parameter
Set value / Description / Note
Device
Supervisor
Parameter
set
P455
Function output 4 (DOUT2)
SK 520E
and above
P
0 ... 100 %
[ 10 ]
Control terminals 7/40:
Functions are identical to P434! Digital output, 15V to DGND.
P456
Standardisation output 4
SK 520E
and above
P
-400 ... 400 %
[ 100 ]
Functions are identical to P435!
P457
Hysteresis output 4
SK 520E
and above
S P
1 ... 100 %
[ 10 ]
Functions are identical to P436!
P460 Time
Watchdog
S
0.0 / 0.1 ... 250.0 s
[ 10.0 ]
0.1 ... 250.0
= The time interval between the expected Watchdog signals (programmable function
of the digital inputs P420 – P425). If this time interval elapses without an impulse being
registered, a switch-off and error message E012 are actuated.
0.0 = customer error:
As soon as a high-low flank or a low signal is detected at a digital input
(function 18) the FI switches off with error message E012.
P461
Function 2 Encoder
0 ... 4
[ 0 ]
SW1.7 and above
The actual speed list value supplied by an incremental encoder to the FI can be used for various
functions in the FI. (Settings are identical to P325)
0 = Rotation speed measurement Servo mode:
The actual motor speed list value is used
for the FI servo mode. The ISD control cannot be switched off in this function. Here P413
and P414 determine the P and I proportion of the control.
1 = PID actual frequency value:
The actual rotation speed of a system is used for rotation
speed control. This function can also be used for controlling a motor with a linear
characteristic curve.
2 = Frequency addition:
The rotation speed deduced is added to the current setpoint value.
3 = Frequency subtraction:
The determined speed is subtracted from the actual setpoint.
4 = Maximum frequency:
The maximum possible output frequency / speed is limited by the
speed of the encoder.
P462
Pulse number 2 Encoder
16 ... 8192
[ 1024 ]
SW1.7 and above
Input of the pulse-count per rotation (16-8192) of the connected encoder.
If the encoder rotation direction is not the same as the FI, (depending on installation and wiring), it
can be compensated for by selecting the corresponding negative pulse numbers.
P463
2. Encoder conversion
0.01 ... 100.0
[ 1.00 ]
SW1.7 and above
If the incremental encoder is not mounted directly onto the motor shaft, then the respectively
correct transformation ratio of motor speed to encoder speed must be set.
speed
encoder
speed
motor
P463
=
only when P461 = 1, 2, 3 or 4, therefore not in Servo mode (motor speed control)
P465
… - 01
...
... - 31
Fixed frequency, field
-400.0 ... 400.0 Hz
[ 0 ]
In the array levels, up to 31 different fixed frequencies can be set, which in turn can be encoded
for the functions 50…54 in binary code for the digital inputs.
