FM 452 cam controller

Заказные данные
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Very high speed electronic cam controller
Low-cost alternative to mechanical cam controllers
32 cam tracks, 16 onboard digital outputs for direct output of actions
Incremental or synchronous-serial position feedback

Note:

We offer position measuring systems and preassembled connecting cables for counting and positioning functions under SIMODRIVE Sensor or Motion Connect 500.

http://www.siemens.com/simatic-technology

Область применения

The high-speed FM 452 electronic cam controller module is a cost-effective alternative to mechanical cam controllers even in the lower performance range.

It can be used, for example:

On conveyor belts:
The FM 452 captures the positions of parts via light barriers and then initiates actions (e.g., drilling, milling, applying adhesive) via control commands.
For the automation of presses.

Дизайн

A controller with the FM 452 features the following essential components:

FM 452:
- For position-dependent control commands by setting of outputs
S7-400 CPU:
- For sequence control
- For starting and stopping monitoring actions
Programming device:
- For programming the STEP 7 program
- For parameterizing the FM 452 with STEP 7 via parameterization screen forms
- For testing and startup
Operator panel:
- For operator control and monitoring of the machine
- For error diagnostics

Функции

Configurable number of cams:
Depending on programming, 16, 32, 64 or 128 cams are available.
Any cam track can be assigned.
32 cam tracks, of which 16 are run directly to onboard digital outputs
Configurable cam characteristics:
the cams can be defined as path cams, path-time cams or time cams. They can be programmed direction-dependent (up/down). Track outputs "0" and "1" can be parameterized as counter cam track, and track output "2" can be parameterized as a brake cam track.

Special functions

Longitudinal measuring
Set reference point
Set actual value
Set actual value on-the-fly
Zero offset
Change cam edge
Simulation mode

Mode of operation

The FM 452 extremely high-speed electronic cam controller captures the position of parts via encoders and then initiates actions via control commands.

The FM 452 operates autonomously after the machine data and the cam data have been transferred. Only control and checkback signals are then exchanged between the CPU and the FM 452.

The electronic cam controller works particularly fast:

16 digital outputs for cam tracks:
For rapid transmission of control signals to the process
Speed-dependent dynamic shifting for each cam:
For automatic compensation of the dead time of the actuator connected at the time

The machinery to be controlled can be connected directly to the module. Control relays are only required for actuators with high current consumption.

Технические данные

Order number		6ES7452-1AH00-0AE0
		SIMATIC S7-400, FM 452
Supply voltage
Rated value (DC)		24 V
Input current
Current consumption, max.		500 mA
Encoder supply
5 V encoder supply
● 5 V		Yes
● Output current, max.		300 mA
● Cable length, max.		32 m
24 V encoder supply
● 24 V		Yes
● Output current, max.		300 mA
● Cable length, max.		100 m
Power loss
Power loss, typ.		8.1 W
Digital inputs
Number of digital inputs		11
Functions		Reference point switch, flying actual value setting/length measurement, brake release, enable track output no. 3 to 10
Input voltage
● Rated value (DC)		24 V
● for signal "0"		-28.8 ... +5V
● for signal "1"		+11 to +28.8V
Input current
● for signal "0", max. (permissible quiescent current)		2 mA
for 2-wire sensor
— for signal "1", typ.		9 mA
Digital outputs
Number of digital outputs		16
Functions		Cam track
Short-circuit protection		Yes
Output voltage
● Rated value (DC)		24 V
● for signal "1", min.		UP - 0.8 V
Output current
● for signal "1" permissible range for 0 to 55 °C, max.		600 mA; with UPmax
● for signal "0" residual current, max.		0.5 mA
Encoder
Connectable encoders
● Incremental encoder (symmetrical)		Yes
● Incremental encoder (asymmetrical)		Yes
● Absolute encoder (SSI)		Yes
● 2-wire sensor		Yes
Encoder signals, incremental encoder (symmetrical)
● Trace mark signals		A, notA, B, notB
● Zero mark signal		N, notN
● Input signal		5 V difference signal (phys. RS 422)
● Input frequency, max.		1 MHz
Encoder signals, incremental encoder (asymmetrical)
● Trace mark signals		A, B
● Zero mark signal		N
● Input voltage		24 V
● Input frequency, max.		50 kHz; 50 kHz for 25 m cable length; 25 kHz for 100 m cable length
Encoder signals, absolute encoder (SSI)
● Input signal		5 V difference signal (phys. RS 422)
● Data signal		DATA, notDATA
● Clock signal		CL, notCL
● Telegram length, parameterizable		13 or 25 bit serial
● Clock frequency, max.		1 MHz
● Gray code		1
● Cable length, shielded, max.		300 m; at max. 125 kHz
Potential separation
Potential separation digital inputs
● Potential separation digital inputs		No
Potential separation digital outputs
● Potential separation digital outputs		No
Degree and class of protection
Degree of protection acc. to EN 60529
● IP20		Yes
Ambient conditions
Ambient temperature during operation
● min.		0 °C
● max.		55 °C
Ambient temperature during storage/transportation
● min.		-40 °C
● max.		70 °C
Relative humidity
● Humidity class F		Yes
Connection method
required front connector		1x 48-pin
Dimensions
Width		25 mm
Height		290 mm
Depth		210 mm
Weights
Weight, approx.		650 g