Pelco C521M AZL Front and Rear Views, AZL Meter Adjustment 4.2.1 Preliminary Remarks

ON	0	00	+35	0				1800
	-35			+90
	0	TILT							360
	-90				0		0	PAN		0
							0
OFF
			PAN			OUTPUT	TILT	1K		AC	AC
		5K			1K		5K		F1	OUTLET	INPUT
		POT			POT		POT	POT
	LOCKING		POT
	NUT		ADJ
			SCREW

Figure 3. AZL Front and Rear Views

AZL			PT1250DC/PP
	11	11 FEEDBACK B+
5K		9 TILT FEEDBACK
	9
+	TILT
–	1K
	2	2	PAN FEEDBACK
+	5K
	PAN
–			FEEDBACK
			COMMON
	10	10
1K

Figure 4. AZL Wiring Interface to P/T

4.2AZL METER ADJUSTMENT 4.2.1 Preliminary Remarks

Figure 3 is a diagram of the internal wiring (minus power supplies, etc.) of that part of the AZL unit related to meter adjustment. Shown there are the full and center scale pots for pan and tilt on the AZL as they would be wired to the respective position feedback pots on a Pelco P/T1250DC/PP. Interconnections between the two units

are shown as circled numbers. As shipped, the pan/tilt unit is mechanically configured to be resting at hori- zontal in the tilt position and at approximately 180° in the pan position.

The meter adjustment procedure for both the pan and tilt meters follows the same method. Assuming you have already performed the connector and pot adjustments indicated in Section 4.1, the step-by-step procedure for meter adjustment is as follows:

4 Pelco Manual C521M (6/95)