Appendix 1 CSA NI/FM NI/IECEx Ex “ec”/ECAS-EX Ex “ec”
App.1-52
TI 33Q01J30-01E
Yokogawa Electric Corporation
Model
CENTUM VP N-IO
Title
Control drawing
No.
NIE008-A101
Page
24
Revision
17
Notes:
1. No revision to this drawing without prior approval of FM.
2. In this control drawing, the term “installation” includes reconfiguration of the function of each
module, which is carried out in maintenance process.
3. Installation must be in accordance with Canadian Electrical Code Part I (C22.1) and relevant
local codes.
4. In the course of installation, the related documents of GS (General specifications), TI (Technical
Information of Installation Guidance), and IM (User’s Manuals) should be referred to and the
instructions described in the documents should be observed.
5. Modules can be mounted also on an FM-approved Base Plates A2BN4D or A2BN5D. In such
case, installation must be in accordance also with the control drawing of these Base Plates.
6. CENTUM VP IS SUITABLE FOR USE IN ZONE 2, GROUP IIC; CLASS 1, DIVISION 2, GROUPS
A, B, C, and D; OR NON-HAZARDOUS LOCATIONS ONLY.
7. It must be observed during the installation that the venting slots of the devices are not blocked
by cable parts, fixing accessories etc.
8. The doors of the cabinets must be closed when CENTUM VP is energized.
9. Nonincendive field wiring is permitted for the modules listed in tables of the nonincendive field
wiring parameters.
9.1 The nonincendive field wiring circuit concept allows interconnection of nonincendive field wiring
apparatus with associated nonincendive field wiring apparatus, using any of the wiring methods
permitted for unclassified locations.
9.2 Field equipment or other equipment connected to CENTUM VP by nonincendive field wiring
must be FM approved.
9.3 The control drawing of field equipment or other equipment must be followed at the installation.
9.4 The following conditions must be met. See tables for the nonincendive field wiring parameters
of CENTUM VP.
Vmax ≥ Voc or Vt; Imax ≥ Isc or It; Ca ≥ Ci + Ccable; La ≥ Li + Lcable
9.5 For current controlled circuits, Imax of the nonincendive field wiring apparatus is not required
and need not be aligned with parameter Isc or It of CENTUM VP or other associated
nonincendive field wiring apparatus.
Dec. 3, 2021-00
