11.4 Operating conditions
11.4.1 Maximum number of starts and stops
The number of starts and stops via the power supply must not
exceed ten times per hour.
When switched on via the power supply, the product starts
after approximately 5 seconds.
If a higher number of start and stops are required, use a digital input
for external start and stop when starting and stopping the product or
use the Safe Torque Off (STO) function.
When started via an external on and off switch, the
product starts immediately.
11.4.2 Ambient temperature
11.4.2.1 Ambient temperature during storage and
transportation
Description Temperature
Minimum -22 °F (-30 °C)
Maximum 140 °F (60 °C)
11.4.2.2 Ambient temperature during operation
Model J
Description
3 × 200−240 V
3 × 440−480 V
16)
Minimum -4 °F (-20 °C) -4 °F (-20 °C)
Maximum 104 °F (40 °C) 122 °F (50 °C)
16)
Continuous operation at higher temperatures reduces the expected
product lifetime. If the motor operates at ambient temperatures between
122 and 140 °F (50 and 60 °C), select an oversized motor. Contact
Grundfos for further information.
Model K
Description
3 × 440-480 V
Minimum -4 °F (-20 °C)
Maximum
122 °F (50 °C)
17)
17)
35 HP MLE motors are rated for a maximum value of 104 °F (40 °C).
11.4.3
Installation altitude
The installation altitude is the height above sea level of the
installation site.
Products installed up to 3280 ft (1000 m) above sea level can be
loaded 100 %.
•
Model J: The product is not suitable for use on corner
earthed grids in installations more than 2000 m above
sea level.
• Model K: The product is not suitable for use on corner
earthed grids.
The motors can be installed up to 11480 ft (3500
m) above sea level.
Products installed more than 3280 ft (1000 m) above sea
level must not be fully loaded due to the low density and
consequent low cooling effect of the air.
The motor output power (P2) in relation to the altitude above sea
level is shown in the graph.
0
60
80
90
70
100
P2[%]
500 1000 1500 2000 2500 3000 3500
X
TM085127
Pos.
Description
P2 Motor output power [%]
X Altitude [m]
11.4.4 Humidity
Description Percentage
Maximum humidity (non-condensing) 95 %
If the humidity is constantly high and above 85 %, open the drain
holes in the drive-end flange to vent the motor.
If you install the motor in moist surroundings or areas with
high humidity, ensure that the bottom drain hole is open.
As a result, the motor becomes self-venting, allowing
water and humid air to escape. When you open the drain
hole, the enclosure class of the motor will be lower than
standard.
11.4.5 Pollution degree
The product is approved for Pollution degree 3 rating.
11.4.6
Turbine operation
Do not force the product to run at a higher speed than the
maximum speed stated on the nameplate.
11.4.7 Accessories
Protocol
Communication interface
module
LonWorks (Single) CIM 100
LonWorks (Multi) CIM 110
PROFIBUS DP CIM 150
Modbus RTU CIM 200
US GiC/GRM 3G/4G CIM 280
BACnet MS/TP CIM 300
Modbus TCP/IP, BACnet IP,
PROFINET, GiC/GRM IP,
EtherNet IP
CIM 500
75
English (US)
To Next Page
Loading...
