Varian 869-8933 Manual De Instrucciones página 63

TECHNICAL INFORMATION
How to connect the open-collector inputs of
the controller
Here below there are the typical connections of the
open collector input of SQ 337 to an external sys-
tem. Two cases are considered:
1. the customer supplies the 24 Vdc
2. the customer does not supply the 24 Vdc
Please note that on the connector a 24 Vdc, 60
mA voltage, a GROUND signal and the open col-
lector pin are available.
Case 2 with relay utilisation
Case 1
Case 2 with transistor utilisation
58 87-900-980-01(B)