Zander Aachen SR3E Operating Instructions

Safety Relay for Elevators SR3E
Operating Instructions
SR3E is an all-purpose emergency stop device with three safe
Correct Use
relay contacts for safe monitoring of one or two channel sensors.
The SR3E is specially designed for the use as safety component
in elevators according to EN 81-20 and EN 81-50, certified by
TÜV Rheinland.
Further applications for the SR3E include single or dual-channel
emergency stop circuits and guard monitoring on machines and
plants according to EN ISO 13849-1, EN 62061 and EN 61508.
 3 non-delayed safety contacts
1 non-delayed auxiliary contact
Connection of:

- Emergency stop buttons
- Mechanical Safety switches
- Non-contact safety switches
- Safety components with OSSD-Outputs
Control: single or dual channel

Feedback loop for external contactors or extension

modules
 Cyclical monitoring of the output contacts
 LED indicator for power and status
Function
The safety relay SR3E is designed for isolation of safety circuits according to EN 60204-1, stop-category 0 and can be used
in safety-related applications up to safety category 4, PL e (EN ISO 13849-1) SILCL 3 (EN 62061 / EN 61508) and as a safe-
ty component in elevators according EN 81-20.
Fig. 1 Block diagram SR3E
As per EN 60204-1, the device is intended for installation
Installation
in control cabinets with a minimum degree of protection of
IP54. The following should be noted:
 Mounting on 35 mm rail according to EN 60715
 Ensure sufficient heat dissipation in the control cabinet
 Minimum distance to adjacent devices according to the
total current limit curve
Safety
 Installation and commissioning of the device must be
performed only by authorized personnel and who has
Precautions
read and understood this operating instructions.
Observe the country-specific regulations when installing

the device.
 The electrical connection of the device is only allowed to
be made with the device isolated.
The wiring of the device must comply with the instruc-

tions in this operating instructions, otherwise there is a
risk that the safety function will be lost.
 It is not allowed to open the device, tamper with the
device or bypass the safety devices.
The contact protection and the insulation of the supply

cables must be designed for the highest voltage
Electrical
 A safety transformer according to EN 61558-2-6 or a
power supply unit with electrical isolation from the mains
Connection
must be connected
 Observe the instructions in the section "Tech. Data"
 If the device does not function after commissioning, it
must be returned to the manufacturer unopened. Open-
ing the device will void the warranty
The auxiliary contact 41-42 may not be used as a safety

contact
 Use adequate protective circuit for inductive loads (e.g.
free-wheeling diode)
H. ZANDER GmbH & Co. KG • Am Gut Wolf 15 • 52070 Aachen • Germany
Tel +49 (0)241 9105010 • Fax +49 (0)241 91050138 • info@zander-aachen.de • www.zander-aachen.de
Errors and technical changes reserved
 Automatic or manual start
 Short-circuit monitoring and ground faultt monitoring
 Up to PL e, SILCL 3, category 4
(EN ISO 13849-1 / EN 62061 / EN 61508)
Fig. 2 State diagram for SR3E with manual start
Fig. 3 Mounting / Demounting
to the device.
 It is not allowed to open the device, tamper with the
device or bypass the safety devices.
 All relevant safety regulations and standards are to be
observed.
The overall concept of the control system in which the

device is incorporated must be validated by the user.
 Failure to observe the safety regulations can result in
death, serious injury and serious damage.
 Note down the version of the product (see label "Ver.")
and check it prior to every commissioning of a new de-
vice. If the version has changed, the overall concept of
the control system in which the device is incorporated
must be validated again by the user.
A1:
A2 :
S11:
S10:
S21:
S13:
S14:
S12:
13-14:
23-24:
33-34:
41-42:
Fig. 4 Terminals
English translation
Power supply
Power supply
Control voltage
Control line
Start control line
Control line
Control line
Control line
Safety contact 1
Safety contact 2
Safety contact 3
N03
Auxiliary contact
Ver. A
E61-421-00
1