OPERATING INSTRUCTIONS NORDAC Frequency Inverters

Terminal Function / Notes Data Suggested circuit
8 Fault acknowledgement
A fault disables the inverter
Display: - Fault
Released by: - acknowledgement of fault
or
switching main OFF\ON
Presupposing: - the fault is no longer present
or has been cleared
Display flashes: - Acknowledgement possible
Caution !
If the cause of the fault has been put right, or
if it is no longer present,and is then acknowledged,
the drive starts to run again as soon as control
is released and setpoint reset. Acknowlegdment input
should not be used during operation. Undesirable
drive movements could result.
9/10 Connection for temperature sensor
a) PTC thermistor temperature sensor Response
threshold
approx. 5 kOhm
b) Floating temperature switch
c) Bridge terminals 9 and 10 if no temperature
sensors are existing
11/12 Options: Parameter set 1 - 4
parameter set Term. 11 Term.12
1 0 0
2 I 0
3 0 I
4 I I
0 = open input
I = input approached
If the parameter sets are switched over during
operation, the new parameters selected come
into effect at once. The transition to a new
frequency is made with the acceleration and
braking ramps of the parameter set selected.
13 Digital frequency output
Pulse duty factor 1 : 1 and L = GND
Frequency duty factor 1 : 1 H = + 15 V
14 Reference potential GND
for control signals Terminals 6 to 13
10
S 3 - 1 : ON ---> Terminal 1 is linked with
Terminal 14