The 10005/1/1 watchdog module (WD) monitors system parameters including:

• the application loop maximum execution time in order to detect if the process is executing its program correctly and is not looping (hang-up).
• the application loop minimum execution time in order to detect if the processor is executing its program correctly and is not skipping program parts.
• 5 Vdc voltage monitoring for overvoltage and undervoltage (5 Vdc ± 5 %).
• memory error logic from CPU, COM and MEM modules. In case of a memory error, the watchdog output is de-energized.
• ESD input to de-energize the watchdog output independently from the processor. This ESD input is 24 Vdc and galvanically isolated from the internal 5 Vdc.

In order to be able to test the WD module for all functions, the WD module itself is a 2-out-of-3-voting system. Each section monitors the parameters described above.

The maximum WDG OUT output current is 900 mA (fuse 1A) 5 Vdc. If the number of output modules on the same 5 Vdc supply require a higher current (total of WD input currents of the output modules), then a watchdog repeater (WDR, 10302/1/1) must be used, and the load must be divided over the WD and the WDR.

Connections

For safety-relevant applications, the plant ESD can be connected directly to the WD module. In case of an ESD, the outputs will be de-energized independently from the processor.

Figure 1 Watchdog section

Figure 2 Watchdog module

The watchdog module terminates on the front to the 10005/O/1 module or the S-BUS located on top of the Central Part rack.

Jumpers

The jumper settings of the 10005/1/1 module are as follows:

Figure 3 Jumper settings on 10005/1/1 module

The solder jumpers SO1 and SO2 are factory-set.

Position 1 (as shown in Figure 3) of the solder jumper SO3 is used for those applications that always require a manual start command.

The solder jumper SO3 in position 2 is used for those applications that have to start automatically after power-up (warm start). In the latter case, a manual reset is still required after a system trip. An automatic start is not executed if the system was powered off with a fault present (VDE 0116). In that case, it still requires a manual reset (resulting in a cold start).

Jumpers J1 to J3 must be positioned as shown in Figure 3.

Technical Data

The 10005/1/1 module has the following specifications:

General

• Type number: 10005/1/1 01301*
• Approvals: CE, TÜV, UL
• Software versions: all
• Space requirements: 4 TE, 3 HE (= 4 HP, 3U)

Power

• Power requirements: 5 Vdc 175 mA (without WDGOUT output current)
• Ripple content: < 50 mV p-p

Input

• ESD1 input: 24 Vdc 5 mA
• Reset input: 24 Vdc 10 mA
• ESD2 input: 5 Vdc 10 mA

*Note: 10005/1/1 modules with suffix code 01301 are functionally identical to 10005/1/1 modules without a suffix code. The changes involve improved production yield and reliability.

Note:

• Do not remove or replace this module while the power on its Central Part is on.
• While this information is presented in good faith and believed to be accurate, Honeywell Safety Management Systems B.V. disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customer.
• In no event is Honeywell Safety Management Systems B.V. liable to anyone for any indirect, special, or consequential damages.
• The information and specifications in this document are subject to change without notice.