nord NORDAC SK 5xxE Series - Page 95

5.5 Control terminals
BU 0500 GB Subject to technical alterations 95
Value Function Description Signal
22
... 25 reserved
26 ... 29 impulse functions: Descriptions on next page.
30
PID controller On/Off
Switching the PID controller / process controller function on
and off (high = ON)
High
31
Enable right blocked
2
Low
32
Enable left blocked
2
Blocks the >Enable right/left< via a digital input or Bus control.
Does not depend on the actual direction of rotation of the
motor (e.g. following negated setpoint).
Low
33 ... 42 impulse functions: Descriptions on next page.
43 ... 44 Speed measurement with HTL encoder: Descriptions on next page.
45
3-Wire-Control Start-Right
(Closing button)
0Æ1
Flank
46
3-Wire-Control Start-Right
(Closing button)
0Æ1
Flank
49
3-Wire-Control Stop
(Opening button)
This control function provides an alternative to enable R/L (01,
02), in which a permanently applied level is required.
Here, only a control impulse is required to trigger the function.
The control of the FI can therefore be performed entirely with
buttons. (software version 1.5 and above)
1Æ0
Flank
47
Increase frequency
High
48
Decrease frequency
In combination with enable R/L the output frequency can be
continuously varied. To save a current value in P113, both
inputs must be at a High voltage for 0.5s. This value then
applies as the next starting value for the same direction of
rotation (Enable R/L) otherwise start at f
MIN
.
High
50
Bit 0 fixed frequency array High
51
Bit 1 fixed frequency array high
52
Bit 2 fixed frequency array high
53
Bit 3 fixed frequency array high
54
Bit 4 fixed frequency array
Binary coded digital inputs to generate up to 32 fixed
frequencies. (P465: -01...-31)
high
55
…64 reserved for SK 530E Æ BU 0510
65
… 69 reserved
70
Activate evacuation run
SW1.7 and above
Only for devices with external 24V control voltage SK 5x5E.
There is therefore also the possibility of operation with a very
low link circuit voltage. With this function the charging relay is
activated and the undervoltage and phase error detection are
deactivated.
High
71
Motor potentiometer function
Frequency +
with automatic saving
SW1.6 and above
high
72
Motor potentiometer function
Frequency -
with automatic saving
SW1.6 and above
With this motor pot. function (SW 1.6 and above) a setpoint
value (sum) is set via the digital inputs, which is
simultaneously stored. With control enabling R/L this is then
started up in the correspondingly enabled direction. On
change of direction the frequency is retained.
Simultaneous activation of the +/- function causes the
frequency setpoint value to be set to zero.
The frequency setpoint value can also be displayed or set in
the operating value display (P001=30, current setpoint MP-S’)
or in P718.
Any minimum frequency set (P104) is still effective. Other
setpoint values, e.g. analog or fixed frequencies can be added
or subtracted.
The adjustment of the frequency setpoint value is performed
with the ramps from P102/103.
high
1
If neither of the digital inputs is programmed for left or right enable, then the actuation of a fixed frequency or jog frequency will
enable the frequency inverter. The rotation field direction depends on the sign of the setpoint.
2
Also effective for Bus control (RS232, RS485, CANbus, CANopen, DeviceNet, Profibus, InterBus, AS-Interface)
... continued on the next page