Safety
Information
Introduction
Product
information
System
design
Mechanical
installation
Electrical
installation
Getting
started
Optimisation Parameters
Technical
data
Component
sizing
Diagnostics
Unidrive SP Regen Installation Guide 21
Issue Number: 2 www.controltechniques.com
The half controlled thyristor rectifier can be used as an external charging module for a regen system consisting of multiple drives. The required
softstart function is built into the SPMC module as standard. An external 24V, 3A power supply is required in addition to the AC supply for the SPMC
to allow the rectifier to operate. Control wiring is required between the rectifier and drive(s) so that if the rectifier indicates a fault all drive(s) will be
disabled.
Table 3-8 SPM rectifier charging data
Also refer to the Unidrive SPM User Guide for further detailed information on the Unidrive SPMC mechanical and electrical installation.
Table 3-6 Key to Unidrive SPMC (rectifier) LEDs Table 3-7 Key to Unidrive SPMU (rectifier) LEDs
Status Output
Definition
Status Output
Definition
1: Left LED
0: Right LED
1: Left LED
0: Right LED
OFF OFF
Mains loss or 24V supply to the rectifier has
been lost
OFF OFF 24V supply to the rectifier has been lost
OFF ON Phase loss OFF ON
Any of the following:
• Internal fault
• Check that rectifier is an SPMU. This
could indicate that unit is an SPMC
ON OFF
Any of the following:
• Snubber overheating due to excessive
cable charging current or supply notching
• Rectifier heatsink over temperature
• Rectifier PCB over temperature
• Status input wire break
ON OFF
Any of the following:
• Rectifier heatsink over temperature
• Rectifier PCB over temperature
• Status input wire break
ON ON System healthy ON ON System healthy
Model
SPMU
1401
SPMU
1402
SPMU
2402
SPMC
1402
SPMC
2402
SPMU
1601
SPMU
2601
SPMC
1601
SPMC
2601
AC line current
(100% Normal Duty Motor Current)
207 339 677 339 677 192 385 192 385
DC link current
(100% Normal Duty Motor Current)
222 379 758 379 758 209 418 209 418
Maximum
DC bus
capacitance on
a supply <25kA
Max capacitance
(mF)
44 66 132 66 132 29.3 59 29.3 59
When used with
line reactor
INL401 INL402 2 x INL402 INL402 2 x INL402 INL602 2 x INL602 INL602 2 x INL602
Maximum
DC bus
capacitance on
a supply <25kA
Max capacitance
(mF)
44 66 66 66 66 29.3 29.3 29.3 29.3
When used with
line reactor
INL401 INL402 INL412 INL402 INL412 INL602 INL612 INL602 INL612
• The user must provide a means of preventing live parts from being touched. A cover around the electrical connections at the top of
the inverter and the bottom of the rectifier where the cables enter is required.
• Fusing as specified must be provided.
WARNING
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