RC version – external drive
SIMDOS diaphragm metering pump
KNF Flodos BA_SIMDOS_EN_02_160044.docx
30
Translation of original operating manual
8. RC version – external drive
External drive functions are available only in the RC version.
Connection details and technical data are provided in sections 4.7
and 6.3.
When external drive is activated, this is indicated in the main
display with the “RC” (
1
) symbol (see Fig. 46).
According to the inputs activated, the display also shows symbols
for analogue input (
2
), digital input 1 (
3
) and digital input 2 (
4
).
8.1. External drive analogue input
The analogue input can be used to externally specify a pump flow
rate from 1% to 100%.
When the analogue input is active, the pump can be started
only if a valid analogue signal is present.
The analogue input can be activated only if the pump has been
set to ml/min.
The time counter is deactivated. Manual time counter inputs
are blocked.
Manual flow metering volume inputs are blocked.
Control signals
Input
Meaning
Signal
Off
Analogue input not active
- -
0–10 V
Voltage control [V]
0.1–10
4–20 mA
Current control [mA]
4–20
0–20 mA
Current control [mA]
0.2–20
Tab. 18: Analogue input options
On/off thresholds
Input
On threshold
Off threshold
0–10 V
0.1 V
0.09 V
4–20 mA
4 mA
3.9 mA
0–20 mA
0.2 mA
0.18 mA
Tab. 19: On/off thresholds
1
RC display active
2
Analogue input
3
Digital input 1
4
Digital input 2
Fig. 45: RC main display
System
Fig. 46: Analogue input