25
6. Initial Start-Up
6.1. Electrical connection
As far as the electrical safety is concerned, the protection against unintentional contact of the connected
and therefore electrically interconnected apparatus and the insulation of the feed cables must be de-
signed for the highest voltage, which can occur in the device.
To avoid EMC disturbances, the physical ambient and operational conditions at the place where the
product is installed, must meet the provisions laid down in the paragraph “Electromagnetic Compat-
ibility (EMC)” of DIN EN 60204-1.
The electrical connection may only be carried out by authorised personnel in a de-energised condition.
6.2. Wiring example
Dual-channel control, shown for a guard door monitor; with two contacts A and B, where at least one
is a positive break contact; with external reset button R
• Relay outputs: Dual-channel control, suitable
for increase incapacity or number of con-
tacts by means of contactors or relays with
positive-guided contacts.
• The control system recognizes wire-break-
age, earth faults and cross-wire shorts in the
monitoring circuit
R
Reset button
H2
Feedback circuit
* = Electronic fuse
** = Hybrid fuse
A1
13
23
37
S11 S21 S22 X1
X2
X3
S12
24
38
14
Y1
A2
KA KB KC KD
N
KA
KB
KC
KD
K1
K2
K3
K4
L1
KB
KA
K4
K1
K2
K3
F1*
F2**
F4*
F3*
Timer
Logic
QS nQS
UB
Ui
H2
R
6.3. Initial Start-Up
6.3.1. Opening the front cover
• To open the front cover, insert a slotted screwdriver
in the top and bottom cover notch and gently lift it.
• When the front cover is open, the electrostatic
discharge requirements must be respected and
observed.
• After setting, the front cover must be fi tted back in
position.
• The set drop-out delay must be entered on the
front cover.
•
Only touch the components after electrical
discharge!
37
23
13
Y1
X1
X3 S22 S21 A2
38
24
14
X2
S12 S11 A1
SR4D3B01S
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UB
i
K1
K2
K3
K4
t= s
37
23
13
Y1
X1
X3 S22 S21 A2
38
24
14
X2
S12 S11 A1
SR4D3B01S
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U
UB
i
K1
K2
K3
K4
t= s
37
23
13
Y1
X1
X3 S22 S21 A2
38
24
14
X2
S12 S11 A1
SR4D3B01S
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U
UB
i
K1
K2
K3
K4
t= s
