49
• DOK-POWER*-TVD*1.3****-ANW1-EN-E1,44 • 02.97
5. Terminal Descriptions
5.9. Temperature Pre-Warning
Potential free contact – terminal X4/7 – X4/8
Maximum load: DC 24 V/1 A; AC 250 V/1A
The temperature prewarn contact opens if the heatsink temperature is too
hich. After 30 seconds, the mains contactor in the TVD interrupts the power
supply and the Bb1 contact opens.
The reaction of the drive system to this fault depends on the NCB link. See
section 5.4 for details.
If CNC-controlled braking is required, the drives must be stopped within 30
seconds if a temperature pre-warning contact in the TVD or one of the drive
modules opens.
5.10. Mains contactor de-energized
Potential free contact – terminal X5/1 – X5/2
Maximum load: DC 24 V/1 A / AC 250 V/1 A
Operating status
contactor de-energized
contactor energized
Output
closed
open
The K1NC output can be interrogated to see if the mains contactor is de-
energized. This status can be used as a condition for enabling door interlocks,
for example.
There is positively-driven operations between the K1NC and the main poles
in the TVD 1.3.
5.11. Mains contactor energized
Potential free contact – Terminal X5/3 – X5/4
Maximum load: DC 24 V/1 A / AC 250 V/1 A
The K1NO output can be interrogated to see if the mains contactor is
energized. The closed status of K1NO can be used as a condition for the
application of the enable signal to the drives. (Exception: see section 4.5.)
Operating status
contactor de-energized
contactor energized
Output
open
closed
Operating status
Relay
Temperature
Temperature
de-energized
too high
within
permissible limits
Output
open
open
closed
Output K1NC
Output K1NO
Output TVW
