Chem-Ad ® Vpp-E - Siemens Wallace & Tiernan Chem-Ad VPP Instruction Manual

7.
Wiring Diagrams
Operation with external release
(operating mode 1)
Operation with external analog
signal (operating mode 2)
80
®
7.3 Chem-Ad
See also chapter 4.1.4.
POWER SUPPLY
LED
Operation
Verify voltage!
Potentiometer
0.2 A
Flow rate
Relay
Power
See also chapter 4.1.4.
POWER SUPPLY
LED
Operation
Verify voltage!
0.2 A
Relay
Power
Chem-Ad ® VPP / VPP-E / VPP-DC
VPP-E
Chem-Ad VPP-E
Button LED
ON/OFF DOSING
Microprocessor
VPP-E
(ohmic load)
(inductive load)
Potential free
relay contacts
Chem-Ad VPP-E
Button LED
ON/OFF DOSING
Microprocessor
VPP-E
(ohmic load)
(inductive load)
Potential free
relay contacts
4 - 20 mA
Analogue
250 Ohm load
Button LED
"MANUAL" FAULT
External
Suction
ON/
lance
OFF
signal
Suction External
lance ON/OFF
Button LED
"MANUAL" FAULT
Analog
Suction
input
lance
Dosing
signal
signal
- +
Suction
lance
signal
WT.490.250.000.DM.IM.0911