HEIDENHAIN TNC 426 PB - Page 227

December 2001 3 – 145 3.25.6 Basic Circuit Diagram for TNC 426 M with UR 2xxB Regenerative HEIDENHAIN Compact Inverter
M
Uz +Uz
X 72
L2L1 L3
J
K6 K7
X 71
K6 K7
SSK 1 SSK 1
K6 K7
SSK 1
X 70
K2 K3
X 31
IGBT
X34/2
X34/1
X41/34
CCU
X1-X6 X15-X20
X42/4
X44/1 X44/2 X44/3
X69 X51-X56
0
V24
V
5
V
LE 426 M
MCU
Reset
24 V
SSK 1
K8
24 V
K2
SSK 2
K4
K5
SSK 3
K4
K5
K2
K3
K3
K2
K4
K5
K6
K7
K1
K2 K3
K12K11K10
K3
K6 K7 K8
SSK 1
t = ca.1s
X42/33
5
V
Uz
21376 2137621376
UV W
24 V PLC
0 V
3
K4
K5
3 x 400 V
UR 2xx
SH2 PWM
UZ AN
Reset
Uz >>
SH1B
X80,X82,X83
PE
KDR 120
E/R
Einheit
+Uz
Uz
PE
Uz = 650 V
UP 110
X79
X44/4
K2 K3
5
V...15
V
24
V
Uz
Power fail
t = ca.1s
Monitoring
Heat sink temperature
Short circuit
PLC output
Position
RPM/Rotor position
Control ready
Machine control voltage on
Permissive button 1
Permissive button 2
Permissive operation
Door contact switch 1
Functional test
Door contact switch 2
Functional test
Automatic operation
Holding brake
Limit switch
Detachable-key switch
Functional test
EMERGEMCY STOP
Safety contactor combination
Motor temperature
Acknowledgement of control ready
EMERGENCY STOP
controlled
Drive enable
Safety contactor axes K12
Safety contactor spindle K11
Main contactor
K10
Axis- enable
Power supply
EMERGENCY STOP
Spindle- enable
Master
switch
Readiness
Power supply
I
actl
Temperature >>
Readiness
Line filter
DC-Link power bar
LE/Inverter
Temperature >>