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Description
The watchdog repeater 10302/2/1 is a module that monitors the 5 Vdc and 24 Vdc supplied to the I/O modules. The watchdog output of the watchdog repeater is connected to the watchdog input of those output modules whose power supply (5 Vdc and/or 24 Vdc) is monitored.
A Honeywell 10302/2/1 watchdog repeater is required in the following cases:
• in multiple-PSU configurations, for each subsequent 24 Vdc to 5 Vdc power supply unit, e.g. PSU 2, 3, 4.
• if the 24 Vdc is supplied via an M24-20 HE or M24-12 HE power supply.
• if the 24 Vdc is supplied via a power supply which can provide supply voltages that exceed 31.0 Vdc. (The maximum output voltage of the 24 Vdc supply must be less than 37 Vdc under any single or double fault condition of the 24 Vdc power supply unit.)
• if the required watchdog current exceeds 900 mA.
• in configurations which combine redundant and non-redundant I/O, in order to create the watchdog output for the output modules of the non-redundant I/O part.
• in configurations with redundant Central Parts and non-redundant I/O, in order to monitor the 5 Vdc power supply (if no 5 Vdc monitoring is done).
- It requires a horizontal bus connection. This means that space must be reserved in the I/O racks (positions 1, 2, 11-18).
- A watchdog repeater must always be placed in the I/O section whose output modules are monitored by that watchdog repeater. This means that watchdog repeaters in configurations with multiple (redundant) I/O sections may not be installed in such a way that they control the “other” I/O section.
- The 10302/2/1 watchdog repeater may be exchanged with the power supply switched on, but the Central Part will shut down, or both Central Parts will shut down if used in a configuration with redundant Central Parts and non-redundant I/O.
- The 10302/2/1 watchdog repeater is fitted with a male connector according to DIN 41612, type F, with the ‘d’, ‘b’ and ‘z’ rows used.
Technical data
The 10302/2/1 module has the following specifications:
General
- Type number: 10302/2/1 12600
- Approvals: CE, TÜV, UL
- Software versions: ≥ 3.00
- Space requirements: 4 TE, 3 HE (= 4 HP, 3U)
Power
Power requirements:
- 5 Vdc 35 mA (without WDROUT output current)
- 24 Vdc 25 mA
- WDG1 + WDG2 input
- current: 0.1 mA
Key coding
- (See ‘Key coding’ data sheet)
- Module code:− holes A5, A9
- Rack code: − large pins A5, A9
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Contact Us
📧 Email: [email protected]
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More Honeywell modules are in stock：
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