Siemens SINUMERIK 840Di Manual page 118

2 Hardware Descriptions
2.13 ADI4 (analog drive interface for 4 axes) (SW 09.01 and higher)
Module status
(H1/H2)
2-118
– Power supply X6-2, pin 1 (P24OUT), external power supply P24OUText:
Wire, conductor cross-section 1.5mm
– Digital inputs X6-2, pins 2–11:
Wire, conductor cross-section 0.5–1.5mm
S
General electrical properties
– Galvanic isolation using optocouplers
– Active current limitation of the inputs
– Protection from negative input voltage.
The module status is displayed on 4 diagnostic LEDs on the front of the module.
Table 2-36 Diagnostic LEDs (H1/H2)
Designation Color
H1 POWER green
OVTEMP red
H2 EXCHANGE green
READY red
2
(AWG16)
2
(AWG20–AWG16)
Description
Supply voltage
Overtemperature display
Cyclic data exchange with DP master in progress
Ready for cyclic data exchange with DP master
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03