5
Startup
Installation and setup of optional equipment
Operating Instructions – Explosion-Proof VARIMOT
®
Variable Speed Gear Units and Accessories
21
5
Startup
5.1
Installation and setup of optional equipment
Speed monitoring
Standard version
The standard version of the explosion-proof VARIMOT
®
variable speed gear unit fea-
tures an M14x1 tapped hole (flange mounted VARIMOT
®
D16/26, version with terminal
strips in the terminal box) or M18x1 (flange mounted VARIMOT
®
D36/46, version with
plug connector) for installing a voltage encoder in the gear unit housing of the variable
speed gear unit. Speed monitor and voltage encoder must be supplied and installed by
the operator of the device.
Additional
versions:
The following additional version of speed monitoring are possible:
1. WEXA:
• Speed monitor (incl. evaluation electronics) with IGEX voltage encoder and digital
remote speed indicator.
2. WEX:
• Speed monitor (incl. evaluation electronics) with IGEX voltage encoder.
3. IGEX:
• This version consists only of the IGEX voltage encoder in the scope of delivery.
The speed monitor must be supplied and installed by the operator of the device.
Manufacturer's
data
Voltage encoder in WEXA/WEX/IGEX version for VARIMOT
®
D16/26:
Voltage encoder in WEXA/WEX/IGEX version for VARIMOT
®
D36/46:
Category 2G variable speed gear units may only be started up with speed moni-
toring.
Manufacturer:
P Fuchs, Mannheim
Type:
NJ2-11-N-G according to DIN 19234 (NAMUR),
100 mm connection cable
Housing:
M14x1
ATEX certification number:
TÜV 99 ATEX 1471
Manufacturer:
P Fuchs, Mannheim
Type:
NJ5-18GM-N-V1 according to DIN 19234
(NAMUR), M12x1 plug-in connection
Housing:
M18x1
ATEX certification number:
TÜV 99 ATEX 1471
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