Unidrive M / Unidrive HS Modular Installation Guide
79
Issue Number: 5
5.11.2 Terminal sizes and torque settings
Table 5-13 Master control and relay terminal data
Table 5-14 Drive power terminal data
Table 5-15 Plug-in terminal block maximum cable sizes
Table 5-16 Optional external EMC Filter terminal data
5.12 Routine maintenance
The drive should be installed in a cool, clean, well ventilated location. Contact of moisture and dust with the drive should be prevented.
Regular checks of the following should be carried out to ensure drive / installation reliability are maximized:
To avoid a fire hazard and maintain validity of the UL listing, adhere to the specified tightening torques for the power and ground
terminals. Refer to the following tables.
WARNING
Model size
Connection type
Torque setting
All
Plug-in terminal block
0.5 N m (0.4 lb ft)
Model size
AC and motor terminals
DC and braking
Ground terminal
Recommended
Maximum
Recommended
Maximum
Recommended
Maximum
All
M10 Nut (17 mm AF)
M10 Nut (17 mm AF)
M10 Nut (17 mm AF)
15 N m (11.1 Ib ft)
20 N m (14.8 Ib ft)
15 N m (11.1 Ib ft)
20 N m (14.8 Ib ft)
15 N m (11.1 Ib ft)
20 N m (14.8 Ib ft)
Model size
Terminal block description
Max cable size
All
2 way low voltage power / 24 V supply connector
1.5 mm
2
(16 AWG)
CT part
number
Power
connections
Ground
connections
Bar hole diameter
Max torque
Ground stud size
Max torque
4200-3021
10.8 mm
30 N m (22.1 lb ft)
M10
18 N m (13.3 lb ft)
4200-4460
11 mm
4200-1660
10.8 mm
4200-2210
11 mm
4200-0400
10.5 mm
M12
25 N m (18.4 lb ft)
4200-0690
10.5 mm
Environment
Ambient temperature
Ensure the enclosure temperature remains at or below maximum specified
Dust
Ensure the drive remains dust free – check that the heatsink and drive fan are not gathering dust.
The lifetime of the fan is reduced in dusty environments.
Moisture
Ensure the drive enclosure shows no signs of condensation
Enclosure
Enclosure door filters
Ensure filters are not blocked and that air is free to flow
Electrical
Screw connections
Ensure all screw terminals remain tight
Crimp terminals
Ensure all crimp terminals remains tight – check for any discoloration which could indicate
overheating
Cables
Check all cables for signs of damage
Summary of Contents for unidrive m
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