IMP Pumps NMT(D) 40-100 & NMT SAN flanges - Manual (Page 25)

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5.6.2.5 h
elp
(Web page HELP) will redirect you to www.imp-pumps.com Possible software upgrades and
manuals will be available.
6. m
aintenance and spare parts
NMT pumps are designed to operate without maintenance for several years. Spare parts will be
available for at least 7 years from the warranty period expiration.
7. t
win pump
(nmtd)
7.1 o
peraTion
The main purpose of the twin pump is uninterrupted operation when one of the pump fails.
Common hydraulic housing is equipped with a change-over flap and two pump heads, separately
connected to grid. Pumps are interconnected with a network cable. During normal operation,
only one pump is active, while the other is in standby. Pumps change duty once per day. Every
pump operates according to its own settings, so parameter changes should be made on both
pumps. If any pump detects an error (red light is blinking) or loss of communication, the standby
pump will start in less than 15 seconds.
7.2 n
eTwork connecTion
Both pumps are interconnected with a cross-over network cable. If you wish to connect the
pumps to a local network, replace the network cable with two connections to the nearest
network switch. The left pump has the same network settings as an individual pump. NetBIOS
name is »nmtpump« and IP address is 192.168.0.245. Right pump netBIOS name is set to
»nmtpump2« and IP address is 192.168.0.246. On the »Network« page, »Twin mode with IP:«
field assigns Twin IP address. Left pump has the IP address of the right pump in this field, while
the right pump has the address of the left one. If you need to change the IP address of the pump
because you want to network multiple pumps, make sure you also enter the new address into
the connected twin pump.
Single pumps can also work in alternating mode if you connect and set them in a
way outlined in the previous paragraph.
Both pumps start when power is applied and settle for priority with the help of a
random number. The operating time is thus equally shared even if the power is
often interrupted.