User manual
7 Installation | Insulation test
427Manual u-remote1432790000/08/12.2015
WiringofmoduleswithHDconnectorsPG0.35mm
When using HD-connectors UR20-PG0.35 qualified wires
with a cross section between 0.14mm² and 0.35mm²
(AWG 22 – 26) and a outer wire diameter between 1.0 and
1.6mm (0.04 to 0.06") can be connected by insulation dis-
placement connectors (IDC). A list of SAI cables approved for
the use with HD-connectors (Document-No. 1541020000)
is available to download from the Weidmüller website.
Required tools:
– multi-stripax 6-16 (Order no. 9202210000)
– Pressing tool PWZ-UR20-HD (Order no.1525820000)
When using HD-connectors UR20-PG0.35 al-
ways two HD connectors must be applied into
one slot of the connector frame.
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Application of HD connectors
▶ Each cable must be the optimal length so that the bend-
ing radii observe the manufacturer’s specifications.
▶ Strip the insulation from the cable to a length of approx.
20mm using the multi-stripax 6-16.
▶ Insert all wires according to wiring diagram as far as they
will go into the clamping unit of the connector. Regard
the marking (pin 1 to 4) on the transparent presorter.
▶ Apply the pressing tool and check whether all wires are
inserted as far as they will go.
▶ Press the HD connector using the pressing tool.
▶ Insert the wired connector into the module’s connector
frame.
7.6 Insulation test
Insulation tests on the u-remote station have to be done ac-
cording to the national regulations, in any case necessarily
before each commissioning.
ATTENTION
The product can be destroyed by too
high test voltage!
Please note during insulation test:
– within one channel the test voltage
between 24V and GND must not exceed
28,8V!*
– A maximum test voltage of 500V can be
applied tho all other connection points.
– Up to 4000V can be applied to the mod-
ules UR20-4RO-SSR-255 and
UR20-4RO-CO-255:
– between the four channels
– between one channel and the system
voltage.
* We recommend to short-circuit 24V and GND on all power
supply connectors (eldbus coupler, power-feed modules,
safe power-feed modules and PLC-modules).