2
Operating instructions
Hoist limit switch
TQ200
EN
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, conversions and modifications to the device are strictly
forbidden; the manufacturer shall accept no liability for damages
resulting from such invasive work, arbitrary repairs, conversions and/or
modifications to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
TQ 200-
➀
No. Option
Description
➀
01
1 NC contact
11
1 NO contact / 1 NC contact
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore
the compliance with the Machinery Directive is maintained.
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Purpose
The hoist limit switch is used on machinery and plants and especially
on cranes, where a safe stop command needs to be triggered when the
highest permitted position of the bottom crane flange is reached.
In normal operating conditions, a weight keeps the NC contact closed.
If the bottom crane flange reaches the highest permitted position, the
contact is opened and the electric circuit interrupted.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
2.4 Technical data
Standards:
EN 60947-5-1
Enclosure:
light-alloy diecast
Switching system:
slow action, 1 NC contact
or 1 NO / 1 NC contact
Termination:
shielded cable 4 x 1 mm², 3 m,
conductor labelling 1 ... 4
Mechanical life:
1 million operations
Actuating speed:
60 mm / min
Spring preload:
40.4 ± 3.6 N
- after 7 mm spring travel:
48.5 ± 3.8 N
Weight force F
G
:
max. 5 kN
Utilisation category:
DC-13
Rated operating current/voltage I
e
/U
e
:
24 VDC / 1 A;
36 VDC / 0.8 A
Thermal test current I
the
:
1 A
Protection class:
IP54,
- Switching element:
IP67
Ambient temperature:
−40 °C ... +80 °C
Storage and transport temperature:
−40 °C ... +80 °C
Relative humidity:
ca. 93 %, nicht kondensierend
Resistance to vibration:
10 … 150 Hz (0.5 mm / 5 g)
Resistance to shock:
30 g
- Continuous shocks:
10 g
Protection rating:
II,
X
Overvoltage category:
III
Degree of pollution:
3
Rated impulse withstand voltage U
imp
:
2.5 kV
Rated insulation voltage U
i
:
40 V
Max. fuse rating:
6 A gG D-fuse
Required rated short-circuit current:
1000 A
2.5 Safety classification
Standards:
EN ISO 13849-1
B
10D
(NO contact) at 10% ohmic contact load:
2,000,000
Service life:
20 years
MTTF
B
d x
x
h
s/h
3600
D
10D
op
op
op
n
0,1 x n
op
t
cycle
(Specifications can vary depending on the application-specific
parameters h
op
, d
op
, t
cycle
as well as the load.)