PHOENIX safety relay 1046360 precautions

PHOENIX safety relay 1046360 precautions

Product model: PSR-SCP-24UC/CE1/3x1/1X2/B
A safety relay is composed of several relays and circuits, designed to complement each other's abnormal defects and achieve the complete function of a correct and low misoperation relay. The lower the error and failure values, the higher the safety factor. Therefore, multiple safety relays need to be designed to protect machinery of different levels, with the main goal of protecting machinery operators exposed to different levels of danger.
Rated control power supply current IS typical value 70 mA (in US hours)
Electromagnetic relays are generally composed of iron cores, coils, armatures, contacts, etc. As long as a certain voltage is applied to both ends of the coil, a certain current will flow through the coil, thereby generating electromagnetic effects. The armature will overcome the pulling force of the return spring and be attracted to the iron core under the electromagnetic force, thereby driving the moving contact (normally open contact) and the stationary contact (normally closed contact) of the armature to be attracted.
The typical power consumption at US time is 1.68 W
Input voltage range, signal '1' 20.4 V... 26.4 V
Dualization is necessary, but in addition, there are several conditions such as mutual inspection of the dual circuit, confirmation that all safety circuits have been disconnected once, and if necessary, it can be started by the operator. From another perspective, when there is a possibility of grounding caused by a short circuit in the input switch wiring or damage to the wire sheath, it is necessary to prevent sudden machine start-up caused by this.
In fact, in order to facilitate the composition of safety circuits, products that combine safety relays with other components and form basic emergency stop circuits and safety circuits into circuit modules are called safety relay modules.
Impulse current<6 mA (at typical US values)
Filtering time does not allow testing pulses
A safety relay is a necessary control component in a safety circuit, which receives safety inputs and outputs deterministic switch signals to the control circuit of the equipment through internal circuit judgment. Simply put, safety relays are of the dual channel signal type, and can only function properly when both channel signals are normal; During the working process, as long as any channel signal is disconnected, the safety relay will stop outputting until both channel signals are normal and reset before it can work normally.
The total allowable resistance of the wire is 50 Ω
Impulse current<3.5 A (voltage is usually US, Δ t=3 ms)
Filtering time 5 ms (when Us voltage drops sharply)

Series protection of protective circuits to prevent polarity reversal; Suppressing diode

PHOENIX safety relay 1046360 precautions