Watson-Marlow PF22 - Manual (Page 32)

Operators Manual
PF22
PF22 OM EN 74-132-005 v1.02.doc Version: 1.02 Page 32 of 34
9 Interface
Fig. 9.1
PF22 has two electrical interface connectors.
(1)
"External GO"
(2)
RS-232
9.1 External GO
"External GO" is designed as a 5-pin DIN plug with the following PIN configuration:
PIN 1: Input for start signal. +5 - 50 VDC, min. 100 msec. positive edge-trigged.
PIN 2: Output, +24 VDC, max. 250 mA.
PIN 3: Ground.
PIN 4: Status output, max. +24 VDC, 100 mA.
Pin4 is grounded via an open collector during filling.
PIN 5: Status output, max. + 24 VDC, 100 mA.
Pin 5 is complementary to Pin 4.