HEIDENHAIN TNC 426 PB - Page 226

December 2001 3 – 144 3.25.5 Basic Circuit Diagram for TNC 426 M with UE 2xxB Nonregenerative HEIDENHAIN Compact Inverter
LE 426 M
24
V
SSK 1
K2
SSK 2
K4
K5
SSK 3
K4
K5
K2
K3
K3
K2
K4
K5
K6
K7
M
Reset
Power fail
Uz >>
Uz an
PWM
5
V...15
V
24
V
Uz
+Uz -Uz
X 72
X80,X82,X83
5
V
L2
24
V
K8
K1
K2 K3
L1 L3
Reset
J
K6 K7
X 71
K6 K7
SSK 1 SSK 1
K6 K7
SSK 1
X 70
K2 K3
PE
X 31
K12K11K10
K3
K6 K7 K8
Uz
IGBT
MCU
X34/2
X34/1
X41/34
24 V PLC
0 V
CCU
X1-X6 X15-X20
X42/4
X42/33
K4
K5
X44/1 X44/2 X44/3 X44/4
X69 X51-X56
SH2
K2 K3
0
V
SSK 1
24
V
PW 210
X1
3
5
V
* X89 B
X89 A
SH1B
HEIDENHAIN- Inverter UE 2xx
B
Power supply
LE/Inverter
Axis-/Spindle- enable
Monitoring
Braking resistor
(only UE 21x
B)
Heat sink temperature
Short circuit
3 x 400 V
Power supply
Temperature >>
PLC output
Position
RPM
Rotor position
Standby
Control is 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
Emergency
Stop
Limit switch
Key-operated switch
I
actl
t=approx. 1s
t=approx. 1s
Functional test Emergency Stop
Safety contactor
combination
Motor temperature
Acknowledgement Control is ready
EMERGENCY STOP
controlled
Standby
Drive enable
Safety contactor axes K12
Safety contactor spindle K11
Main contactor
K10
* or bridge
for internal braking resistor