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> Honeywell time delay module # ff-SRT052F2-c
Honeywell time delay module # ff-SRT052F2-c
Unused surplus item in original box w/ instructions
The FF-SRT Time Delay module provides a time delay before safety contacts are opened.
Two-channel version, the output contacts of the two time delay circuits are connected in series. When the displayed time has elapsed, the safety contacts within the module open safely, even if one of the other contacts is welded.
When power is applied to the module (A1/A2), the normally closed contact (15/16)will open immediately and the normally open contact (27/28) will close. After power is removed from the module (A1/A2), the normally closed contact (15/16) will close and the normally open contact (27/28) will open after the fixed or set time has elapsed.
For example, this module may be used with an emergency stop module. The emergency stop module will immediately forward the emergency stop condition to the machine control circuitry. The time delay module can be used to keep some non-safetyrelated machinery operating (door locked) for a short period of time to avoid an unsafe condition or simplify the machine startup cycle.
Time delay required before disconnection of safety interface circuit
* Repeatability precision: + 15 % from selected value
* Two channel model; 1,7 W, 4,5 VA
* Nominal frequency: 50 to 60 Hz
* Output Contact complement: 1 NO contact, 1 NC contact
* Contact type: Safety relay, positive-guided
* Switching Capability: Power factor = 1 with resistive load
* Current Range (min. to max.): 30 mA to 8 A
* Voltage Range (min. to max.):
* Switching capability (per ac15: EN 60947-5.1):
* NO contact: 3 A / 250 Vac - NC contact: 1 A / 250 Vac
* Operating frequency: 2000 switching cycles/hour (max.)
* Fuse rating: 6 A time delayed
* Mechanical life: Ten million switching operations
* Temperature range: -20 C to +60 C / -4 F to 140 F at max. 90% humidity
* Housing material: Thermoplastic
* Vibration resistance: Amplitude 0,35 mm; Frequency 10 to 55 Hz
* Conductor connection: 2 x 2,5 mm2 solid (max.) [12 AWG] or 2 x 1,5 mm2 [16 AWG] (max.)
* Stranded wire with sleeve DIN 46288
* Conductor attachment: Flat terminal according to DIN 46206 and DIN 57609/VDE
* Mounting: Quick install rail mounting EN 50022-35
* Weight: 200 g / 0.44 lb for Vdc / 350 g / 0.77 lb for Vac
