Operating instruction (translation from original)
SVM 4001K-A / 4001K-C
Standstill monitoring for 1- and 3-phases motor without sensor system
Wieland Electric GmbH
Brennerstraße 10 – 14
96052 Bamberg
Phone +49 951 9324-0
Fax
+49 951 9324-198
Doc. #
BA000926
– 06/2022 (Rev. E)
SVM 4001K-A / 4001K-C
6
EN
3
Connection diagrams
Diagram 1a:
Delta-connection
3-phases motor
Diagram 1b:
Star connection
3-phases motor
Diagram 1c:
Star delta-connection
3-phases moto
Diagram 1d:
connection
1-phases motor
4
Display
After the connection of the power supply to the terminals A1 and A2 an internal test is
started. During this test the output contacts are open and the LED
OK
is illuminated red
(picture 2a).
The unit is ready after a faultless test displayed via the green illuminated LED
OK
(picture 2b).
Figure 2a
Figure 2b
Figure 2c
Figure 2d
Device test
Standstill
Movement
Run-out
5
Monitored function
A standstill is detected by evaluating the induced voltage (EMF) on a decelerating motor. The
output contacts open immediately if the EMF voltage exceeds the voltage set on the device.
The
STOP
LED goes out (Figure 2c).
When the set voltage is not reached, the configurable On delay is active. The
STOP
LED
flashes green (Figure 2d).
At the end of the delay time, the output contacts close. The
STOP
LED lights up green
(Figure 2b). The mechanical blockade of the motor is not being monitored.
6
Function of the control inputs I11 und I22
The standstill monitor is inactive when I11 and I22 are connected with 24 V DC. See table 1.
The standstill monitor is only active in FA1. The protective equipment is unlocked during a
standstill.
Table 1: Selecting the mode
I11
I22
Function mode Description
0 V
0 V
FA1
Output contacts are only closed during standstill.
24 V 0 V
Not allowed!
0 V
24 V
Not allowed!
24 V 24 V
FA2
Output contacts are closed also during movement.
7
Switching value adjusting
•
Connect the device to the operating voltage.
•
Hold the SET key for approx. 3 s until all LEDs flash red.
•
After pressing the key, the LEDs flash red according to the binary combination of the
current parameter level (see table 2).
•
Briefly pressing the SET key assigns the next level in the sequence.
•
Pressing the SET key for approx. 2 s permanently saves the new value and exits setting
mode.
WARNING
For applications with synchronous motors, the switching threshold may only be adjusted
within a range of 1 … 7. If set within a range of 8 … 15, the motor standstill can be
detected prematurely.
Table 2
Position
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Value
adjustment
LED: b8 / OK
LED: b4 / STOP
b2
b1
Contacts on
[mV]
50
55
60
65
70
75
80
200
230
250
300
350
400
460
500
Contacts out
[mV]
120
120
120
120
120
120
120
1000
1000
1000
1000
1000
1000
1000
1000
8
Setting the on delay time for output contacts
•
Connect the device to the operating voltage.
•
Hold the SET key for approx. 6 s until all LEDs flash green.
•
After pressing the key, the LEDs flash according to the binary combination of the current
parameter level (see table 3). Every short press increases the value by one level.
•
Pressing the key for approx. 2 s saves the new value.
•
Pressing the key for ≥ 20
s ends the setting mode and restores the previous values.
CAUTION
Parameters cannot be changed while a fault is present, e.g. wire breakage or disconnected
motor!
Table 3
Position
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Time adjustment LED: b8 / OK
LED: b4/STOP
b2
b1
Time delay
[s]
0.5
1
2
3
4
5
6
7
8
10
12
14
16
18
20