IDEC EB3N Quick Start Manual

EB3N Safety Relay Barriers
EB3N
Safety Relay Barriers
Build a safety system in an explosive atmosphere.
Safety relay barrier [Exia] II C
Explosion
Switch (EB9Z-A) Exia II CT6
Protection
Switch (EB9Z-A1) Exia II BT6
• Ensures explosion protection safety and machine safety in an explosive
atmosphere.
• Machine safety system can be built in compliance with ISO13849-1 Category
4, Performance level e.
• Safety input devices applicable in any explosive gas and hazardous areas are
available.
• Available with auxiliary inputs (5 points) used to monitor the operating status
of safety input devices.
• A wide variety of Japan TIIS-rated emergency stop switches and interlock
switches are available.
• Global usage
Explosion protection: Global: PTB (IEC Ex), Europe: PTB (ATEX), USA: UL
Japan (TIIS), China (Ex-CCC)
Machine safety: TÜV Rheinland
• No grounding required.
Safety Relay Barriers
Safety Output
Safety Input Points
Points
2 2NO
2 2NO
Note 1: A maximum of five monitor contacts from safety input devices can be connected to the auxiliary input terminals. In addition, non-safety input devices can also be connected to the
auxiliary input terminals.
Note 2: On auto reset (auto start) models, when the safety condition is met (two safety inputs are both on), safety outputs are turned on automatically.
Connect the reset (start) input terminals Y1 and Y2 together except for the following cases:
When connecting a contactor or force guided relay to the safety output of the EB3N, connect the NC contacts of the contactor or force guided relay to the reset (start) input terminals
Y1 and Y2 of the EB3N for use as a backcheck input signal.
Note 3: On manual reset (manual start) models, while the safety condition is met (two safety inputs are both on), safety outputs are turned on at the falling edge of the reset switch (start
switch) signal (OFF ON OFF) (start off check).
Manual reset (manual start) models have a monitoring function of reset switch contacts (detection of welded contacts). Use NO contacts of a momentary switch for the reset (start)
input. When connecting a contactor or force guided relay to the safety output of the EB3N, connect the NC contacts of the contactor or force guided relay to the reset (start) input
terminals Y1 and Y2 of the EB3N for use as a backcheck input signal.
Selection Guide
1. Selecting the reset (start) function
Auto reset (auto start): Select this model when connecting safety control devices, such as safety relay modules or safety controllers, to the EB3N safety outputs to set up a safety
system, using the reset (start) function of the safety control device.
Select this model when connecting contactors or force guided relays to the EB3N safety outputs to set up a safety system, and a risk assessment on the entire
system has not found any safety problem in using auto reset (auto start).
Manual reset (manual start): Select this model when connecting contactors or force guided relays to the EB3N safety outputs to set up a safety system, and a risk assessment on the entire
system has found that manual reset (manual start) is necessary.
2. Selecting the auxiliary outputs
Without auxiliary outputs: Select this model when the operating status of safety input devices are not monitored.
With auxiliary outputs: Select this model when the operating status of safety input devices are monitored or when non-safety input devices are also connected.
General Specifications
Rated Power Voltage
Power Voltage Range
Operating Temperature
Operating Humidity
Without auxiliary output
Power
Consumption
With auxiliary output
13-14,
Contacts
23-24
Resistive
Safety
Rated Load
Inductive
Output
Turn on
Response
(rated voltage)
Turn off
Contacts A* - C1
Auxiliary Rated Load Resistive
Output
Turn on
Response
(rated voltage)
Turn off
Mounting
*: Channel Nos. 1 to 5
Safety Performance level e
Performance Category 4
Auxiliary Input Points Auxiliary Output Points
(Note 1) (Relay Output)
Without
5 (1 common) 5NO (1 common)
24V DC
20.4 to 26.4V DC
–20 to +60°C (no freezing)
UL: –20 to +40°C
(no freezing)
45 to 85% RH
(no condensation)
5.5W maximum
7.0W maximum
2NO
30V DC, 1A
DC-13, 24V, 1A
100 ms maximum
20 ms maximum
5NO/1 common
24V DC, 3A,
common terminal 5A max.
15 ms maximum
10 ms maximum
DIN rail or panel mounting
Reset (Start)
(Note 2, Note 3)
Auto reset (Auto start)
Without
Manual reset (Manual start)
Auto reset (Auto start)
Manual reset (Manual start)
Explosion-Protection Specifications
Explosion Protection
Non-intrinsically Safe Circuit Maximum Voltage
(Um)
Intrinsically Safe Circuit Maximum Voltage (Uo)
Intrinsically Safe Circuit Maximum Current (Io)
Intrinsically Safe Circuit Maximum Power (Po)
Intrinsically Safe Circuit Allowable Capacitance (Co)
Intrinsically Safe Circuit Allowable Inductance (Lo)
Safety circuit
Intrinsically Safe Circuit
Wiring Resistance (Rw)
Auxiliary circuit
Note 1: 10Ω maximum (500m maximum using a 1.25 mm2 cable)
Note 2: 600/(N+1)Ω maximum, where N = the number of common channels
Safety Specifications
Category
Performance Level (PL)
Mean Time to Dangerous Failure (MTTFd)
Diagnostic Range
Calculation conditions for MTTFd
t : Mean operation cycle = 1 hour
cycle
h : Mean operation hours per day = 24 hours
op
d : Mean operation days per year = 365 days
op
Note: When t is shorter than 1 hour, MTTFd will decrease.
cycle
Part No.
EB3N-A2ND
EB3N-M2ND
EB3N-A2R5D
EB3N-M2R5D
[Exia] II C
250V (UL: 125V)
13.2V
227.2 mA
750 mW
0.49 µF (TIIS: 0.28 μF)
0.60 mH
(TIIS: 0.56 mH)
(Note 1)
(Note 2)
4
e
100 years
99% minimum
1