24V DC
24V DC
20 mA
Trigger LED 1
from Camera/ PLC
PC or PLC
Modbus Server
Trigger
24V DC
20 mA
24V DC
20 mA
24V DC
20 mA
Trigger LED 2
from Camera/ PLC
Trigger LED 3
from Camera/ PLC
Trigger LED 4
from Camera/ PLC
CTR-52
Modbus Slave
1 Tr.1
2 Tr.2
3 Tri.3
4 Tri.4
5 Tri GND
6
7
LED 1 (+)
LED 1 (-)
LED 2 (+)
LED 2 (-)
LED 3 (+)
LED 3 (-)
LED 4 (+)
LED 4 (-)
1k2
1k2
1k2
1k2
LED
Driver
LED
Driver
LED
Driver
LED
Driver
Specification CTR-52
Electrical parameter
Operating Voltage 24 V DC / 4 A
±5 %, min. 2V above the forward voltage of the
LED light source
LED steady current1)
(ON & AUTO mode)
min. 50 mA
1.5 A per Channel
LED flash current2) 150 mA...25 A
Min flash duration 20 µs
depending on LED working point
and duty cycle
Max. flash duration 59 s
Max. trigger frequency 10 kHz
Max. flash latency3) 5 µs
Flash duration & delay:
smallest adjustable step
1 µs
Voltage range for LED modules approx. 1.9 V...21.6 V
Mechanical parameter
Dimension (H x W x D) 53 mm x 80 mm x 93 mm
Weight 220 g
Connectors 1x 2 Pin plug contact (RM5.08),
1x 7 Pin plug contact (RM3.81),
4x 2 Pin inv. plug contact (RM3.81)
1x RJ45 Ethernet
Certifications CE, RoHS
Degree of protection IP20 (made for control cabinet)
Humidity 30 % to 70 %
Operating temperature 10°C to 30°C
Accessories Top rail mounting clip and plugs (scope of de-
livery). For cable, mounts and lighting modules
please check www.mbj-imaging.com
1) LED current less than 100 mA may cause LED light flicker
2) The flash energy is provided by a capacitor and requires suicient time for
recharging. The flash energy (flash frequency * flash duration * current) is limited
to 1 A. E.g.: 100 flashes/s * 100 µs * 30 A = 0.3 A
3) The higher the current and the shorter the cycle time, the greater the latency
can be
Electrical Connections
Pin Pin Name CTR-52 Function Comment
1 24 VDC 24 VDC Power supply input
2 GND Ground Power supply ground
3 Trg.1 Trigger 1 12-24 V1) Internally opto-coupled
4Trg.2 Trigger 2 12-24 V Internally opto-coupled
5Trg.3 Trigger 3 12-24 V Internally opto-coupled
6Trg.4 Trigger 4 12-24 V Internally opto-coupled
7 Trg. GND Trigger ground Common Tr. ground, isolated
8-- not used
9 -- not used
Pin Name Wire2) Output to light
10 LED1+ white + brown Channel 1
11 LED1-3) black + blue Channel 1
12 LED2+ white + brown Channel 2
13 LED2-3) black + blue Channel 2
14 LED3+ white + brown Channel 3
15 LED3-3) black + blue Channel 3
16 LED4+ white + brown Channel 4
17 LED4-3) black + blue Channel 4
Port Function Comment
Eth RJ45 network Modbus over Ethernet
1) Signal high ≥ 10 V, signal low ≤ 2V
2) For MBJ connecting cable and MBJ LED light (-x) without integrated controller
3) Do NOT connect LED(-)to the external ground of the power supply or the ground of
the trigger signal! This might destroy connected lights or devices
Operating Mode
Mode CTR-52 Function
STEADY Continuous light, LED always on
AUTO LED output follows the trigger status
FLASH1) Manual set-up for flash, delay and duration via Modbus protocol
DISCHARGE Unload flash capacitors
OFF LED output is switched o
1) The CTR-52 factory setting of the operation mode is FLASH 150 mA, 300 µs.
Other operating modes are selectable via the Modbus interface
24V DC
20 mA
Trigger LED 1
from Camera/ PLC
Trigger
GND
20 mA
20 mA
20 mA
Trigger LED 2
from Camera/ PLC
Trigger LED 3
from Camera/ PLC
Trigger LED 4
from Camera/ PLC
1k2
1k2
1k2
1k2
24V DC
24V DC
24V DC
24V DC
Modbus Server CTR-52
Modbus Slave
1 Tr.1
2 Tr.2
3 Tri.3
4 Tri.4
5 Tri GND
6
7
LED 1 (+)
LED 1 (-)
LED 2 (+)
LED 2 (-)
LED 3 (+)
LED 3 (-)
LED 4 (+)
LED 4 (-)
1k2
1k2
1k2
1k2
LED
Driver
LED
Driver
LED
Driver
LED
Driver
Triggered light with PNP sourcing Triggered light with sinking output (inverted strobe signal)
Application Samples for CTR-52 Controller
Modubus Control
Hardware
The standard fieldbus provided with the CTR LED controller product line is
based on Modbus TCP. Modbus is a data communications protocol for use
with programmable logic controllers (PLCs).
Modbus Setup Information
The CTR controller is a Modbus device that allows you to access the light
settings via Ethernet. The controller communicates using a master-slave
technique in which only one device (the master) can initiate transactions
(called queries). The other devices (slaves) respond by supplying the re-
quested data to the master, or by taking the action requested in the query.
The CTR light controller is implemented as a Modbus slave. The CTR
receives messages from the master, processes them and responds to them.
The pro-duct does not send messages by itself.
Modbus Setup Information
Modbus Type: Slave (Server)
Modbus Format: Modbus TCP
Output Data Mode: Auto
Notes
‒ The default device IP address is 192.168.0.99. The address can be
changed via a command line tool provided with the MBJ soware
package
‒ The RESET Button on the back of the device can be used to return to the
factory default settings
‒ Please refer to the fieldbus communication protocol definition for details
– Python scripts for common applications
Soware
The CTR-52 can be programmed via dierent alternative methods:
‒ Direct Modbus access for which a detailed protocol definition is provided
‒ The easy to use MBJ soware user interface based on MS Windows
– Python scripts for common applications
For further information and download of the CTR-52 soware components
visit: www.mbj-imaging.com/en/products/led-controller
