8

en Installation

Control Panel

 

 

 

Figure 2.2: Ground Fault Detect (S4)

 

Callout - Description

 

 

 

1

- S4

Locked (Closed). Control panels detects ground faults.

 

 

 

2

- S4

Unlocked (Open). Control panel does not detect ground faults.

 

 

 

2.5.4

Ground Fault Impedance Specifications

 

The table below provides the impedance specifications for detecting ground faults when any

 

terminal or field wiring is shorted to ground.

 

 

 

 

 

Impedance

Control Panel Detects Ground Fault

 

 

 

 

 

 

≤ 300 Ω

Yes

 

 

 

 

 

 

300 Ω to 200 k Ω

Detection depends upon the terminal

 

 

 

 

 

 

≥ 200 k Ω

No

 

 

 

 

 

 

Table 2.1: Ground Fault Impedance Specifications

2.5.5Locking the Reset Pin

Locking the reset pin disables the control panel. When the reset pin is locked, the control panel is disabled. CALL FOR SERVICE appears in some keypad displays (SDI2 keypads display enter Installer Passcode) when the pin is locked down.

On-board outputs (Terminals 6 and 7) and off-board outputs deactivate when the control panel is disabled. Terminal 8 has power when the output is deactivated. Activation interrupts power at that terminal. The on-board output (Terminal 8) remains deactivated when the reset pin is locked in the disable position.

Unlocking the reset pin from the locked position resets the control panel. The control panel resets all its timers, counters, indexes, and buffers. Any points that restore after a reset do not generate Restoral Reports.

If the reset pin is placed in the Lock position, and all areas are armed, the control panel will not answer RPS over a phone line unless the Answer Armed program item has a value other than zero in it. No entry is required for network or RPS Enhanced direct connection communication. Refer to RPS Parameters in RPS Help.

2012.12 02 F.01U.265.462

UL Installation Instructions

Bosch Security Systens, Inc.

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Bosch Appliances D9412GV4 installation instructions Ground Fault Impedance Specifications, 5Locking the Reset Pin

D9412GV4 specifications

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