Install Pe Cable - Delta M100A-280 Operation And Installation Manual

3.4.5 Install PE Cable

- The ground connection in the first step is recommended because the earthed
outer casing of the inverter can protect the persons against electrical shocks.
The inverter provides internal and external PE terminal for grounding. The ground
connection can be installed on the internal, external or both with the proper
sizing of the cable which is met system safety requirement and refer to 3.4.4.
Internal PE terminal
If single-core cable is used, it should meet the requirement from 3.4.4 and the
installation is shown as following:
M100A_280
PE
Figure 3-12: Location for internal PE terminal - single core cable
(1) According to Table 3-4 to choose proper PE single-core cable size with proper
inner rubber of cable gland and pass PE cable through inner rubber to the
internal grounding terminal of inverter.
Cable diameter range
D1
D2
(2) According to the figures to install PE single-core cable and use M8 spanner
to tighten the nut with 14.7 N-m torque.
(3) Fasten the protective earth cable gland to meet requirement for waterproof.
CAUTION !
M100A_283
M110A_283
PE
D1 D2
Table 3-4: Specification of PE gland
16.0 - 23.0 mm
10.0 -16.0 mm
24.5 N‧m 24.5 N‧m
PE
or
PE
14.7 N‧m 14.7 N‧m
Torque
3.5-5.2
N • m
3.5
N • m
31
Installation
P
Dimension of P
1.5-5.0 mm
1.5-5.0 mm