Low Voltage Dc Mode Enable, Heatsink Fan Supply Connections (Spma/D) And Status Input Connections (Spmd); Figure 6-38 Status Led Location; Figure 6-39 Location Of The Spma/D Low Voltage Dc Mode Enable Connections; Figure 6-40 Spma Low Voltage Dc Mode Enable - Emerson Unidrive SPM User Manual

Safety Product
Introduction
Information Information configuration
85 External +24V supply
Function
Nominal voltage
Minimum continuous operating
voltage
Maximum continuous operating
voltage
Current consumption
Minimum start-up voltage
Recommended power supply
Recommended fuse
90
Relay contacts
91
Function
Contact rating
Contact minimum recommended
rating
Relay state when rectifier is
operating normally
Update period
6.14.4 SPMC/U (rectifier) LEDs
The control circuitry of the Unidrive SPMC/U monitors the drive status
and generates codes via the status output LEDs (S1 and S0).

Figure 6-38 Status LED location

Status 1 (S1) Status 0 (S0)
The STATUS LEDs S0 and S1 mirror the status outputs and are
encoded as follows:

Table 6-24 Key to SPMC (rectifier) LEDs

Status Output
1: Left LED 0: Right LED
Line power supply, or 24V supply to the
OFF OFF
rectifier has been lost
OFF ON Phase loss
Any of the following:
•
ON OFF
•
•
•
ON ON System OK
The SPMD drive will monitor the status lines and on detection of a fault
disables the system via a PhP or (when used in conjunction with a
SPMC) OHT4.P trip.
90
System Mechanical Electrical Getting
Installation Installation Started
The rectifier must be supplied with
+24V to power the fans and control
PCB
+24Vdc
+23V
+28V
3.0A
+18V
24V, 100W, 4.5A
2 2
4A fast blow (I t <20A s)
Rectifier OK indicator
0.4A AC 240V
4A DC 40V resistive load
0.5A DC 30V inductive load (L/R = 40ms)
12Vdc 100mA
Closed
Relay is not latched, relay could change
state at a rate up to 30ms
Meaning
Snubber overheating due to excessive
cable charging current or supply notching
Rectifier heatsink over temperature
Rectifier PCB over temperature
Status input wire break
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Basic Running SMARTCARD
Optimization
parameters the motor operation

Table 6-25 Key to SPMU (rectifier) LEDs

Status Output
1: Left LED 0: Right LED
OFF OFF
OFF ON
ON OFF
ON ON
6.15 Low voltage DC mode enable,
heatsink fan supply connections
(SPMA/D) and status input
connections (SPMD)
Unidrive SPMA and SPMD require a low voltage DC mode enable signal
to terminal 50 and 51 of the lower terminal connector near the W phase
output, to allow the drive to be used from a low voltage DC supply.
For more information regarding low voltage DC operation, see the Low
Voltage DC Mode Application Note.
Figure 6-39 Location of the SPMA/D low voltage DC mode enable
connections
Figure 6-40 SPMA low voltage DC mode enable connections
Not connected
65 64 63 62
55 54 53 52
To the heatsink fan
Pre-wired internally
Onboard Advanced Technical
PLC parameters Data
Meaning
Line power supply loss, or 24V supply to
the rectifier has been lost
• Internal fault
Check that rectifier is an SPMU. This
could indicate that unit is an SPMC
Any of the following:
• Rectifier heatsink over temperature
• Rectifier PCB over temperature
• Status input wire break
System OK
24V heatsink fan supply
0V
61 60 Upper terminal connector
51 50 Lower terminal connector
0V
Low voltage DC mode enable
Unidrive SPM User Guide
Issue Number: 3
UL Listing
Diagnostics
Information