HEIDENHAIN TNC 410 M Technical Manual page 317

5.9 Connecting the UP 110 Braking Resistor Module
X79: Unit bus
April 2007
For regenerative inverter systems, the UP 110 braking resistor module must
be used when axis motors without brakes are used. In the event of power
failure, it dissipates the energy returned by the motors to the dc link. The UP
110 is switched on when the inverter voltage U
switched off again as soon as it falls below 720 V.
Danger
Danger of electrical shock!
The UP 110 braking resistor module may be opened only by HEIDENHAIN
service engineers.
Do not engage or disengage any terminals while they are under power.
Connection:
40-pin ribbon Assignment
connector
1a to 3b 0 V
4a +24 V
4b +24 V
5a +15 V
5b +24 V
6a +15 V
6b +15 V
7a to 8b Do not assign
9a Reserved (SDA)
9b Do not assign
10a Reserved (SCL)
10b ERR.TEMP
11a PF.PS
11b 0 V
12a RES.PS
12b 0 V
13a PWR.OFF
13b 0 V
14a 5 V FS (spindle enable)
14b 0 V
15a 5 V FA (axis enable)
15b to 16b 0 V
17a and 17b –15 V
18a and 18b +15 V
19a to 20b +5 V
Connecting the UP 110 Braking Resistor Module
*1
*1
*1
*1
*1
*1
*1
exceeds 740 V and is
Z
These voltages must not be
linked with other voltages (only
basic insulation)!
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