Agilent Technologies Turbo-V 81 PCB 24 Vdc Mode D'emploi page 180

17 Technical Information
Installation
Installation
Inspect the controller for any shipping damage. The controller is
designed to be installed into a rack. All the connections are fitted to
J2, J3, J4 and J5 connectors. Should the controller be connected to a
host computer via the-RS-232 interface, a suitable cable must be
prepared.
In the following paragraphs are detailed the input/output signals.
The PCB installed into the customer system must be positioned so that cold air
NOTE
(forced or natural convection) can flow through the PCB components.
J3 Connector
Figure 7
The signals of J3 connector are the following:
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J3 – Power Connector
Pins 1/2 Power supply 24. Vdc (20 to 32 Vdc) (pin 2 positive).
Pins 4/3 Kl relay contacts. The relay switches when the output
frequency overrides the set threshold (1117 Hz). The threshold
overriding is indicated also on pin 6 of J4 connector.
Turbo-V 81 PCB 24 Vdc Controller User Manual / 87-900-121-01 (D)