Instruction Manual

ELECTRICAL CONNECTIONS 4
31
UFM 530 HT
www.krohne.com12/2013 - 4002393201- HB UFM 530 HT R02 en
4.5.3 Digital input
Digital input active
• V+: 22 VDC at full load; 24 VDC maximum, I ≤ 100 mA
• Low = 0...5 VDC
• High = 15...32 VDC
Digital input passive
• U
ext
= 15...30 VDC
• I ≥ 1.5 mA
• Low = 0...5 VDC
• High = 15...32 VDC
Figure 4-15: Pulse output (passive) for Ex-i Modis
INFORMATION!
The digital input will be switched off when the current output is activated.
Figure 4-16: Digital input (active)