Frequency Converter For Vacuum Pumps With Three-Phase Motor; Connecting The Ptc Thermistor Tripping Unit - Pfeiffer Vacuum HENA 202 Betriebsanleitung

Installation
Voltage [V]
440
460
Tbl. 8:
Voltage [V]
200
346
220
380
Tbl. 9:
5.6.6 Frequency converter for vacuum pumps with three-phase motor
Rotary vane pumps with variable rotation speed can be operated within a mains frequency range of 35
to 60 Hz. Start-up is ramped (maximum run-up time: 30 s). Shutdown can take place immediately.
5.6.7 Connecting the PTC thermistor tripping unit
L1
L2
L3
F1 - F3
10
N
Fig. 15:
U
S
S
1
S
2
S
3
K1
F1 – F4 Fuses
92/126
Frequency [Hz]
60
60
Motor protection switch settings for global motor Hena 302
Frequency [Hz]
50
50
60
60
Motor protection switch settings for Asian motor Hena 302
Tripping units store the shut-down
Pfeiffer Vacuum recommends connecting motors with PTC in the stator winding to a PTC
resistor tripping device for protection against overload.
K1
A1
Us
3)
AC 220 ... 240 V
V W
U
M
3
11
T1...T3
Connection example with PTC thermistor tripping unit
Control voltage
OFF button
ON button
RESET button
Contactor
Motor rating [kW]
6.6
6.6
Motor rating [kW]
5.5
5.5
6.6
6.6
2)
2)
A2 T1 T2 Y1 Y2
2)
S3
T1 – T3 PTC resistor sensor
H1 Tripping indicator
M Motor, 3-phase
1) For devices with two relay outputs only
For MSR type (model) only
2)
Only for order no.: P 4768 052 FQ and P 4768 052 FE
3)
I [A]
N
12.1
12.1
I [A]
N
25.6
14.8
24.2
14.0
1) 1) 1)
24 21 22 14 11
F4
S1
k1
S2
K1
I [A]
max
101
101
I [A]
max
241
140
221
128
12
H1