Pelco C521M operation manual Scope, Description, Connector Installation

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2.0 SCOPE

The information contained within this manual covers the AZL (Azmith and Elevation Read-Out Meter).

3.0 DESCRIPTION

The AZL is used to provide a visual read-out (in de- grees) of the mechanical position of DC based pan/tilts such as Pelco's P/T1250DC/PP equipped with position feedback pots.

The AZL consists of two easily read Simpson meters mounted on the front panel of the unit along with the power switch and power on indicator.

The fourteen pin CPC connector on the back panel of the unit provides the necessary wiring interface for the unit. This wiring interface is usually integrated with controller wiring at the point where the cabling con- nection is made to the P/T (reference Figure 1's simpli- fied diagram). The rest of the back panel consists of installation set-up pots for initial meter calibration. A power input cord, input line fuse and a convenient power outlet plug round out the back-panel connections.

4.0 INSTALLATION

Installation consists of installing the interconnecting cable between the AZL and the P/T in use and initial adjustment of the meters for operation.

4.1 CONNECTOR INSTALLATION

Reference Figure 2 and Figure 3. Before connecting the wiring, set the meter module “full scale” adjust- ment pots (these are the 5K pots) on the back of the AZL unit at the full CW (clockwise) position and set the “center scale” adjustment potentiometers (these are the 1K pots) on the back of the AZL unit at approxi- mately center.

Now, reference the AZL wiring diagram in Figure 2. The wiring for connector pins 2 and 9 go to the “pan feedback” and “tilt feedback lines”, respectively, on the P/T, which, in the case of a PT1250DC/PP, share corre- sponding numbered pinouts. For the rest of the AZL wiring, we have pin 10 - which is AZL common - that is wired to feedback common (pin 10) on the P/T and pin 11 (AZL B+, +5VDC) that is wired to “feedback B+” on the P/T. We assume, of course, that any other additional wiring needed for the system in question has already been done or is also being done at this time (controller wiring, for example). Once the wiring inter- face is in place, the next thing to consider is AZL meter adjustment.

P/T

AZLCONTROLLER

Figure 1. Installation/Block Diagram

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Pelco Manual C521M (6/95)

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Contents AZL-Azmith and Elevation Table of Contents List of Illustrations Revision HistoryManual # Date Comments C521M Original version This page intentionally left blank Pelco Manual C521M 6/95 Risk of Electric Shock Do not Open Scope InstallationConnector Installation DescriptionAZL Wiring Diagram Pelco Manual C521M 6/95 AZL Meter Adjustment 4.2.1 Preliminary Remarks AZL Front and Rear ViewsPan Meter Adjustment Meter Adjustment Pelco Manual C521M 6/95Electrical Tilt Meter AdjustmentSpecifications OperationPelco Manual C521M 6/95 Warranty and Return Information Returns