Pelco SD5 User Manual download pdf (Page 20)

20 Pelco Manual C1456M-D (10/98)

NOTE:

Connect only a low volt-

age device to the relay output.

Maximum current rating of the re-

lay contacts is two amperes.

CAUTION:

The maxi-

mum output of AUX 2 is

150 mA. If you connect a

device that draws more

current, you could destroy

the output transistor. The

output is intended to

drive logic circuits or low-

current devices. If higher

current is required, con-

nect the output to a relay.

CAUTION:

Leave ad-

equate slack in the wiring

to permit the door to open

without pulling on the con-

nectors.

CAUTION:

Make sure

the dome drive locks into

place. Tug downward on

the dome drive with mod-

erate pressure to ensure

that it stays in place.

NOTE:

For Coaxitron

control,

SW2 is not used and all switches

must be OFF.

5. Heater/Fan - This is a factory connection for a heater on outdoor pendant

models.

6. Alarm Inputs - If you need alarm inputs, connect them. The maximum num-

ber of alarm inputs is seven. Refer to Figure 8 for a typical wiring example.

Alarm inputs require a ground signal through a contact closure, such as a

switch.

7. AUX 1 - An AUX 1 command from the controller will activate the relay output.

If you need the relay, wire it as required. Refer to Figure 8. The relay contacts

are shown when AUX 1 is inactive. When an AUX 1 command is issued, the

relay contacts will reverse and remain latched until a clear command is is-

sued.

8. AUX 2 - An AUX 2 command from the controller will place a ground at the

output of AUX 2 to operate the device connected to it. The output will remain

latched until a clear command is issued. If you need the AUX 2 output, wire it

as required. Refer to Figure 8 for typical wiring examples. The AUX 2 output is

an open collector transistor driver which is capable of passing a maximum of

150 mA at 32 VDC. It is capable of driving TTL logic circuits or low-current reed

relays. If you use an external relay, make sure that both the supply voltage and

the current requirements are well below the maximum of 32 VDC and 150 mA.

Exceeding these values will cause permanent damage to the dome. If you are

not familiar with open collector drive requirements, contact Pelco technical

support for assistance.

9. Close the door and tighten the thumbscrew securely.

Proceed to Section 3.5, DOME DRIVE.

3.5 DOME DRIVE

1. Turn on power to the back box. The red LED should light to indicate power.

If the LED does not light, correct the trouble before proceeding. Refer to Sec-

tion 6.0, TROUBLESHOOTING.

If the light is operating, you may either leave the power on and continue with

the installation, or you may turn the power off before proceeding further.

2. Set the switches on the bottom of the dome drive. Refer to Figure 12 and Table

C for the settings for SW1.

Refer to Figure 12 and Tables D and E for the settings for SW2.

3. Install the dome drive in the back box: Line up the green drive eject tab on the

dome drive with the green label on the back box and the red static tab with the

red label on the back box. Raise the dome drive into the back box and push on

the ends of the tabs until they both click into place on the back box.

4. Turn on power, if it is not on. Listen for the fan operating. If the fan does not

work, the dome will overheat and shut down. If the fan does not work, return

the back box electronic assembly and dome drive to the factory for repair.

Refer to Section 6.1, BACK BOX ELECTRONIC ASSEMBLY REMOVAL.

Proceed to Section 3.6, LOWER DOME.

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