PILZ安全继电器的电路要求及原理

PILZ安全继电器与一般继电器的主要差别在哪里?所谓“PILZ安全继电器”并不是“*的继电器”，而是发生故障时做出有规则的动作，它具有强制导向接点结构，万一发生接点熔结现象时也能确保安全，这一点同一般继电器*不同。PILZ安全继电器是由数个继电器与电路组合而成，为的是要能互补彼此的异常缺陷，达到正确且低误动作的继电器完整功能，使其失误和失效值愈低，安全因素则愈高，因此需设计出多种安全继电器以保护不同等级机械，主要目标在保护暴露於不同等级之危险性的机械操作人员。
对PILZ安全电路的要求:
1、在紧急停止解除时，机器不能出现突然再启动
2、万一机器安全电路发生故障时，可以停止机器动力电源
3、安全电路发生故障时，机器不能再启动
像安全开关、光幕等确认安全的输入，无法做到上述功能，那么，怎样才能做到安全电路呢？时候双重电路就可以了？
A:单靠双重化是不行的。
双重化是必要的，但是除此之外，比备如下几个条件，双重化电路的互相检查，确认所有安全电路已经断开一次，必要时由作业者操作便可以启动等条件。还有从另一个角度来说，输入的开关接线短路或电线外皮破损而引起的接地的可能性时，必须预防因此而引起的机器突然启动。
实际上，为了方便安全电路的构成，将安全继电器和其他组件组合配套，把基本的紧急停止电路、安全电路组成电路模块的产品称为安全继电器模块。
PILZ安全继电器的原理
PILZ安全继电器一般由铁芯、线圈、衔铁、触点簧片等组成的。只要在线圈两端加上一定的电压，线圈中就会流过一定的电流，从而产生电磁效应，衔铁就会在电磁力吸引的作用下克服返回弹簧的拉力吸向铁芯，从而带动衔铁的动触点与静触点（常开触点）吸合。当线圈断电后，电磁的吸力也随之消失，衔铁就会在弹簧的反作用力返回原来的位置，使动触点与原来的静触点（常闭触点）吸合。这样吸合、释放，从而达到了在电路中的导通、切断的目的。对于继电器的“常开、常闭”触点，可以这样来区分：继电器线圈未通电时处于断开状态的静触点，称为“常开触点”；处于接通状态的静触点称为“常闭触点”。

全国*现货供应德国皮尔兹PILZ*系列产品：

PNOZ X7 115VAC 2n/o
, PNOZ X7 120VAC 2n/o
, PNOZ X7 230VAC 2n/o
, PNOZ X7 240VAC 2n/o
, PNOZ X7 42VAC 2n/o
, PNOZ X7 24VACDC 2n/o
, PNOZ 16 24VAC 24VDC
, PNOZ 16 42VAC 24VDC
, PNOZ 16 48VAC 24VDC
, PNOZ 16 110VAC 24VDC
, PNOZ 16 115VAC 24VDC
, PNOZ 16 120VAC 24VDC
, PNOZ 16 230VAC 24VDC
, PNOZ 16 240VAC 24VDC
, PNOZ 16S 24VAC 24VDC
, PNOZ 16S 42VAC 24VDC
, PNOZ 16S 48VAC 24VDC
, PNOZ 16S 110VAC 24VD
, PNOZ 16S 115VAC 24VD
, PNOZ 16S 120VAC 24VD
, PNOZ 16S 230VAC 24VD
, PNOZ 16S 240VAC 24VD
, PNOZ 11 24VAC 24VDC
, PNOZ 11 42VAC 24VDC
, PNOZ 11 48VAC 24VDC
, PNOZ 11 110VAC 24VDC
, PNOZ 11 115VAC 24VDC
, PNOZ 11 120VAC 24VDC
, PNOZ 11 230VAC 24VDC
, PNOZ 11 240VAC 24VDC
, PNOZ EX 230VAC 3n/o
, PNOZ EX 42VAC 3n/o 1
, PNOZ EX 115VAC 3n/o
, PNOZ EX 120VAC 3n/o
, PNOZ EX 115VAC 3n/o
, PNOZ EX 120VAC 3n/o
, PNOZ EX 230VAC 3n/o
, PZE 9 24VAC 8n/o 1n/
, PZE 9 42VAC 8n/o 1n/
, PZE 9 48VAC 8n/o 1n/
, PZE 9 110VAC 8n/o 1n
, PZE 9 120VAC 8n/o 1n
, PZE 9 230VAC 8n/o 1n
, PZE 9 240VAC 8n/o 1n
, PZE 9 24VDC 8n/o 1n/
, PNOZ X1 24VAC/DC 3n/
, PNOZ X2 24VAC/DC 2n/
, PNOZ X2C 24VAC/DC 2n
, PNOZ X2.1C 24VAC/DC
, PNOZ X2.1 24VAC/DC 2
, PNOZ X3 24VAC 24VDC
, PNOZ X3 42VAC 24VAC/
, PNOZ X3 48VAC 24VAC/
, PNOZ X3 110VAC 24VDC
, PNOZ X3 115VAC 24VDC
, PNOZ X3 120VAC 24VDC
, PNOZ X3 230VAC 24VDC
, PNOZ X3 240VAC 24VDC
, PNOZ X3.1 230VAC 24V
, PNOZ X3.1 240VAC 24V
, PNOZ X5J 24VDC 2n/o
, PNOZ X5.1 24VDC 2n/o
, PNOZ X5 24VACDC 2n/o
, PNOZ X5 12VDC 2n/o
, P2HZ X1 24VAC 3n/o 1
, P2HZ X1 42VAC 3n/o 1
, P2HZ X1 48VAC 3n/o 1
, P2HZ X1 24VDC 3n/o 1
, P2HZ X1 26VDC 3n/o 1
, P2HZ X2 24VAC 2n/o
, P2HZ X3 24VDC 2n/o 1
, P1HZ X1 24VDC 2n/o
, PDZ 24VDC 2n/o 2n/c
, PAD/BO 512/6/5VDC
, PAD/SI 800/512I/5VDC
, PAD/SI 800/1024I/5VD
, PAD/SI 800/2048I/5VD
, PAD/SI 800/4096I/5VD
, PAD/SI 840/512I/5VDC
, PAD/SI 840/1024I/5VD
, PAD/SI 840/2048I/5VD
, PAD/SI 840/4096I/5VD
, PAD/SI 800/32I/5VDC
, PAD/SI 840/256I/5VDC
, PAD/SI 840/128I/5VDC
, PAD/SI 840/64I/5VDC
, PAD/SI 840/32I/5VDC
, PAD/SI 840/16I/5VDC
, PDZK WDP3-01 1000/20
, P2HZ X1 110VAC 3n/o
, P2HZ X1 115VAC 3n/o
, P2HZ X1 120VAC 3n/o
, P2HZ X1 230VAC 3n/o
, P2HZ X1 240VAC 3n/o
, PNOZ XV2 30/24VDC 2n
, PNOZ XV2 3/24VDC 2n/
, PNOZ XV2 0.5/24VDC 2
, PNOZ XV2 3/24VDC 2n/
, PNOZ XV2 10/24VDC 2n
, PNOZ XV2 300/24VDC 2
, PNOZ XV2.1 30/24VAC
, PNOZ XV2.1 30/48VAC
, PNOZ XV2.1 30/120VAC
, PNOZ XV2.1 30/230VAC
, PNOZ X2.4V 1/24VDC 4
, PNOZ X2.6V 1/24VDC 4
, PNOZ XV2.1 3/24VAC 2
, PNOZ XV2.1 3/42VAC 2
, PNOZ XV2.1 3/115VAC
, PNOZ XV2.1 3/120VAC
, PNOZ XV2.1 3/230VAC
, PNOZ XV3.1 30/24VDC
, PNOZ XV3 30/24VDC 3n
, PNOZ XV3 3/24VDC 3n/
, PNOZ XV3 0.5/24VDC 3
, PNOZ XV3 3/24VDC 3n/
, PNOZ XV3 10/24VDC 3n
, PNOZ XV3 300/24VDC 3
, PNOZ X13 24VDC 5n/o
, PNOZ XV2.1 30/24-240
, PNOZ XV2.1 3/24-240V
, PNOZ XV2.1 300/24-24
, PNOZ XHCV 0, 7/24VDC
PPS 100-240VACDC / 2
PZE X4V 0, 5/24VDC 4n
PZE X4V 1/24VDC 4n/o
PZE X4V 2/24VDC 4n/o
PZE X4V 3/24VDC 4n/o
PZE X4V 8/24VDC 4n/o
PZE X4 24VDC 4n/o
PZE X4V 0, 7/24VDC 4n
PZE X5V 3/48VDC 5n/o
PZE X5V 1.5/24VDC 5n
PZE X5V 3/24VDC 5n/o
PZE X5 24VDC 5n/o
PNOZ X9 42VAC 24VDC
PNOZ X9 100VAC 24VDC
PNOZ X9 120VAC 24VDC
PNOZ X9 230VAC 24VDC
PNOZ X2.2 24VAC/DC 2
PNOZ X9 200VAC 24VDC
PNOZ X9 24VAC 24VDC
PNOZ XV3.1 30/24-240
PNOZ XV3.1 3/24-240V
PNOZ XV3.1 300/24-24
PNOZ X10 24VAC 6n/o
PNOZ X10 42VAC 6n/o
PNOZ X10 100VAC 6n/o
PNOZ X10 110VAC 6n/o
PNOZ X10 115VAC 6n/o
PNOZ X10 120VAC 6n/o
PNOZ X10 230VAC 6n/o
PNOZ X10 240VAC 6n/o
PNOZ X10 200VAC 6n/o
PNOZ X10 24VDC 6n/o
PNOZ X6 110-120VAC 3
PNOZ X6 230-240VAC 3
PNOZ X6 24VAC 24VDC
PNOZ X4 24VDC 3n/o 1
PNOZ X4 24VAC 3n/o 1
PNOZ X4 24VDC 3n/o 1
PNOZ X4 110VAC 3n/o
PNOZ X4 115VAC 3n/o
PNOZ X4 120VAC 3n/o
PNOZ X4 230VAC 3n/o
PNOZ X4 240VAC 3n/o
PNOZ X10.1 24 VAC 6n
PNOZ X10.1 42 VAC 6n
PNOZ X10.1 100VAC 6n
PNOZ X10.1 110VAC 6n
PNOZ X10.1 115VAC 6n
PNOZ X10.1 120VAC 6n
PNOZ X10.1 230VAC 6n
PNOZ X10.1 240VAC 6n
PNOZ X10.1 200VAC 6n
PNOZ X10.1 24VDC 6n/
PU3Z 120VAC 3n/o 1n/
PU3Z 230VAC 3n/o 1n/
PU3Z 24VDC 3n/o 1n/c
PNOZ 16SP 24VAC 24VD
PNOZ 16SP 42VAC 24VD
PNOZ 16SP 48VAC 24VD
PNOZ 16SP 110VAC 24V
PNOZ 16SP 115VAC 24V
PNOZ 16SP 120VAC 24V
PNOZ 16SP 230VAC 24V
PNOZ 16SP 240VAC 24V
PZE 9P 24VACDC 8n/o
PZE 9P 24VACDC 100-2
PZE X5P 24VDC 5n/o 2
PNOZ X2P 24VACDC 2n/
PNOZ X2.3P 24VACDC 3
PNOZ X2P 48-240VACDC
PNOZ X2.5P 24VDC 2n/
PNOZ X3P 24VDC 24VAC
P2HZ X1P 24VAC 3n/o
P2HZ X1P 42VAC 3n/o
P2HZ X1P 48VAC 3n/o
P2HZ X1P 24VDC 3n/o
P2HZ X4P 24VAC 3n/o
P2HZ X4P 24VDC 3n/o
P2HZ X1P 110VAC 3n/o
P2HZ X1P 115VAC 3n/o
P2HZ X1P 120VAC 3n/o
P2HZ X1P 230VAC 3n/o
P2HZ X1P 240VAC 3n/o
PNOZ XV2P 30/24VDC 2
PNOZ XV2P 3/24VDC 2n
PNOZ XV2P 1/24VDC 2n
PNOZ XV2P 0.5/24VDC
PNOZ XV3P 30/24 VDC