JSBR4 Safety Relay
|
Technical Data
|
|
Manufacturer.................................. JOKAB SAFETY
Ordering Data.............. JSBR4 and supply voltage
Color................................................. black and beige
Weight......... 350 g (24 VDC), 460 g (24-230 VAC)
Supply .......ll 24 VDC+/-15%, 24/48/115/230 VAC,
+/-15%, 50-60 Hz
Power Consumption....................................... <2 VA
Relay Outputs...................................... 3 NO + 1 NC
Maximum switching
capacity res. load AC............ 6A/250 VAC/1500 VA
Maximum switching
capacity res. load DC ................ 6A/24 VDC/150 W
Minimum load.......................................... 10mA/10 V
(if load on contact has not exceeded 100 mA)
Maximum input wire
res. at nom. voltage................................... 300 Ohm
(S13-S14 and S23-S24)
Response Time
At deactivation............................................... <15 ms
(145 ms at power loss)
Terminals
Maximum screw torque................................... 1 Nm
Single strand......................... 1x4mm2/2x1.5mm2
Conductor
with socket contact............... 1x2.5mm2/2x1mm2
Air and creep distance............. 4kV/2 IEC 60664-1
Mounting.......................................... 35 mm DIN rail
|
|
Operating Temperature
Range................................................ -10ºC to +55ºC
Function Indication..................... Electrical supply,
inputs, outputs
Protection Class
Enclosure....................................... IP 40 IEC 60529
Connection blocks........................ IP 20 IEC 60529
|
|
|
Technical Description
|
The electrical supply is connected across A1 and A2. After Voltage reduction and Rectification (AC-versions) or reverse polarization protection (DC-version) there is an overload protection-circuit.
When the inputs S13-S14 and S23- S24 have closed and the reset is made, the relays K1 and K2 are activated.
A dual stop signal is given, K1 and K2 drops, with short circuiting between or opening of the inputs, and with power failure. If one input is opened the other input must also be opened for K1 and K2 to be activated again.
|
The monitoring circuit checks K1 and K2 and that the reset circuit to X2 is both closed and opened before K1 and K2 are energized. Both the stop and reset function therefore comply with the requirement that a component fault, short circuit or external interference do not result in a dangerous function.
The safety outputs consist of contacts from K1 and K2 connected internally in series across terminals 13 - 14, 23 -24 and 33 - 34. These contacts are used to cut the power to components which stop or prevent hazardous movements/functions. It is recommended that all switched loads are adequately suppressed and/or fused in order to provide additional protection for the safety contacts.
Note: Output 41-42 is intended for the indication purposes only, e.g. gate opened. No load between S14 and S24 allowed.
|
|
Electrical Connections
|
Emergency stop with manual resetting.
|
Enabling device JSHD4. Stop condition is given in both top and bottom PB positions.
|
Two-hand device with buttons in separate or same enclosure. Buttons to be pressed in within 0.5 s of each other. Footpedal switches can be connected in the same configuration.
|
Contact mat or strip with manual reset.
|
Interlocked gate with manual reset.
|
Control and supervision of external contactors, relay, valve or JOKAB SAFETY's expansion relays.
|
|
|
