Analog inputs

Note

A channel requires a settling time of about 10 to 50 seconds after switching on. The settling time in IEPE 1Hz mode is shorter than in IEPE 0.1Hz mode.

This also applies, if the signal was overdriven for a short time.

The analog inputs can be adjusted to different operating modes per channel. The operating mode is configured in ibaPDA.

IEPE input (±5 V) with 1 Hz high-pass filter¹
IEPE input (±5 V) with 0.1 Hz high-pass filter
24V AC input (AI)
24V DC input (AI)

4 inputs are adjusted permanently to IEPE mode. The mode of the second input of each root can be configured: IEPE 1Hz, IEPE 0.1Hz, 24V AC or 24V DC. The following table shows the possible input settings:

	IEPE 1Hz	IEPE 0.1Hz	24V AC	24V DC
Analog input 0	✓	✓	-	-
Analog input 1	✓	✓	✓	✓
Analog input 2	✓	✓	-	-
Analog input 3	✓	✓	✓	✓
Analog input 4	✓	✓	-	-
Analog input 5	✓	✓	✓	✓
Analog input 6	✓	✓	-	-
Analog input 7	✓	✓	✓	✓

Caution!

When set to IEPE mode (default setting) an integrated constant current source provides 4 mA (30 V DC) for the connection of IEPE sensors. However, when the inputs are used as 24 V input, the configuration to 24 V mode has to be done in ibaPDA before wiring, see ibaMS8xIEPE – Analog tab!