NORD Drivesystems BU0100 User Manual
Page 23
NORDAC SK 160E
BU 0100 GB
Technical Modifications Reserved
23
4.4.2 Rotary dip code switches for locking time
With the help of two 10-step rotary dip code
switches, the user can select the locking time for
direct direction reversal. Both electronic power
switches are locked for this time. The switch (P1) is
used to select the desired time range. The switch
(P2) allows a fine adjustment in 1/10 steps
depending on the respective time range selected.
Step
1
2
3
4
5
6
7
8
9
10
P 1
0-0.2 s 0.2-0.5 s 0.5-1 s
1-2 s
2-5 s
5-10 s
10-15 s 15-30 s 30-60 s 60-120 s
P
2 1/10 2/10 3/10 4/10 5/10 6/10 7/10 8/10 9/10 10/10
Example 1:
Switch P1 on
Step 1: Time range 0-200 ms
Switch P2 on
Step 1 = 20 ms, step 2 = 40 ms, step 3 = 60 ms,..., step 10 = 200 ms
Example 2:
Switch P1 on
Step 5: Time range 2-5 s
Switch P2 on
Step 1 = 2.3 s, step 2 = 2.6 s, step 3 = 2.9 s,..., step 0 = 5 s
Because of the digital processing, the time accuracy is very high and can be exactly set again even if a device
is replaced.
4.4.3 Slide switch for automatic operation
The slide switch is used to switch the automatic operation on or off. It refers to the behavior of switching on
again after the motor starter has cut off because of excess temperature of the motor.
[ON]
Switching off:
OK message (signal OK at low) is removed in case of excess temperature. The motor is
automatically switched off by SK 160E.
Switching on again:
The drive will not start automatically if excess temperature is no longer present.
The control signal [RUN] must first be switched off and then on again or, alternatively,
the slide switch is pushed to [OFF] and again to [ON]. Attention: The drive starts
immediately!
[OFF]
Switching off:
OK message (signal OK at low) is removed in case of excess temperature. The motor is
not switched off by SK 160E.
Switching on again:
The OK message is switched high again when the excess temperature is no longer
present. The motor would start-up even in case of excess temperature!
Rotary dip code switches
P1 P2